Write a python program to find the second largest number in a list. Please do watch the complete video for .

Write a python program to find the second largest number in a list in this article we will see how we can find the largest eleme if you want to store numbers in list, create list. Sort in ascending order and print the first element in the list. Learn on How to Find Second Largest Number in a List using Python. Input: arr[] = {35, 23, 12, 35, 19, 100} Output : 35. Print the Python program to find largest of n numbers without using built-in function. Python program to find the average of the list of the numbers entered through keyboard; 7. Next, we used For Loop to In this video, you will learn how to find the second largest number in a given list with detailed logic explanation. 4 ) in the most efficient way possible (my list can get quite big) In this question Retrieve the two highest item from a list containing 100,000 integers the heapq. 3337. Find second-largest number using sorted() function. This program needs to output the location of these two elements (0 and 4) and their values (1 and 5). Python Program to Find Largest Number in List Python Program to Find Second Largest Number in List Python Program to Print Largest Even and Odd Number in List Python Program to Split Even and Odd Elements into Two Lists Find Average of a List in Python Sum of Positive and Negative Numbers in List in Python Python Program to Count Occurrences of Element in List 4. The idea is to sort the array in non-decreasing order. Given below is an O(n) algorithm to do the same. 3. Input: [10, 3, 20, 9, 11, 15, 23, 6] Output: 23. If you need to find the second largest number in a list, click on the following subheading:. Find the second largest number in a List in Python; We used the set() class to convert the list to a set to remove any duplicates. Related. You can replace my_list with your own list of numbers to find the second largest number in your data. First I thought to do this by sorting the list first, but this might turn out to be very bulky. [Naive Approach] Using Sorting – O(n*logn) Time and O(1) Space. One straightforward method involves sorting the Python Program to find the largest element in a tuple - One of the most common problems in computer science is the problem of searching. I don't know why you wouldn't want to use len(), or max() - they're literally built-in functions, not part of any library, and there's no practical reason not to use them. It then prints the result. 2 Enter element 2: 7. Python Exercises, Practice and Solution: Write a Python program to find the third largest number from a given list of numbers. This is a Python Program to find the second largest number in a list. In this tutorial, we will program 'How to Find the Second Largest Number in a List using Python'. We c I am trying to find the second largest element in an array. index(m1)) m2 = max(a) print(m1 + m2) output: 16. Second largest number, well that's just the one which was previously the largest! Python program to find second largest number in a list In this article, we will explore various methods to find second largest number in a list. Print the original array using the print() function. This Python program allows users to enter the length. Input : List = 10 -> 5 -> 10 Output : The second largest element is 5. nsmallest, which only does O(k log n) work (where k is the number of smallest items to pull, and n is the full list length) instead of O(n log n). Find Largest Odd Number. The following function will return the k th largest element in a list by sorting the list in descending order and returning the k th element. Python Program to Find the Largest Number in a List. Essentially the steps are: 1. First we would be sorting the array. To find the second largest element, First sort the given array in ascending order. ; Initialize an empty list lst = []. Python program : Here is a list of programs: Find the second-smallest number (element) in a list of 10 elements. Now this causes the second branch to execute: Number System; Algebra; Linear Algebra; Trigonometry; It applies a condition to each element of the first list and retains those present in the second list. Find the new highest element, which is actually the third one. To understand the following program, you should have the knowledge of following python concepts: Python if. argv[1] def map(f,items): result = [] for i in range(0,len(items),1): result = result + [f(items[i]) return result im trying to find the easiest way to go about doing this! Thank you! Given a Linked List, the task is to find the largest and second largest value in a Linked List. Please refer complete article on Program to find largest element in an array for more details!. this must be done using loop statements in python 3. The simplest way to find maximum of two numbers in Python is by using built-in max() function. Given an input list, for instance, [3, 1, 4, 1, 5, 9, 2], the desired output is the second largest unique value, which in this case should be 4. This article was created to cover some programs in Python that find and print the largest number (or element) in a given list. Python program to find second largest number in a list. 2 6 9 9 5 ^idx2 3a. (DEFINE (minmax list Here, I do this by first using max() (a built-in function of python that works on any iterable object) to get the largest element of the list, then using a list comprehension to create a second list of elements that do not equal that largest element, and finally using max() again to get the second-largest element from the original list. Python Program to find the Largest Number in a List using max() Write a Python program to find the second smallest number in a list This program is checking for unique second smallest element in the list "num" which is a list of integers. [GFGTABS] Python a = I have to write a program that, when given numbers from the command line, manages to read and print the highest number. Next, we We used the numpy sort function to sort the array in ascending order. Way 1: [crayon-676c10e891fcf675492991/] Output: [crayon-676c10e891fd4627960493/] This is a Python program that finds the second largest number out of three given Given a Linked list of integer data. We will learn how to extract the second largest number from a list. 2 6 9 9 5 ^idx1 3. The question asked me to "write and test a recursive function max() to find the largest number in a list. As soon as we encounter an element which is not equal to the largest element, return it as the second largest Write a Python program to find the second largest number in a list This program is finding the second largest element in the given list 'num' of integers. 2 6 9 9 5 ^idx0 2. Program to find second largest digit in a string using Python - Suppose we have an alphanumeric string s, we have to find the second largest numerical digit that appears in s, if there is no such string then return -1. Here is a list of programs covered: Find the largest number in the list without using the max() method. Although it is not necessary, it is more common t I am trying to write a python file that finds the largest prime number of a variable I declare inside the code. The example usage demonstrates finding the second largest Given a list of numbers, the task is to write a Python program to find the second largest number in given list. Find the name of the students securing highest percentage using dictionary. The example usage demonstrates finding the second largest number in the list [12, 34, 7, 23, 32] and prints the result using the print statement. Create an empty array and assign it to the N=5 K = [1,10,2,4,5,5,6,2] #store list in tmp to retrieve index tmp=list(K) #sort list so that largest elements are on the far right K. Problem Description The program takes a list and prints the Second largest number in the list. [GFGTABS] Python a = Enter the number of elements: 8 Enter element 1: 1. To solve this, we wi Hello Programmers, Welcome to my channel. Python indexes are zero-based, so the first item in a list has an index of 0, and the last item has an index of -1 or len(my_list) - 1. Our program will iterate through the list only for one time i. Examples: Input : lst1 = [10, 20, 30, 40, 50] lst2 = [0, 2, 4] Output : [10, 30, 50] Explanation: Output I am trying to find the second largest element in an array. Now, we know that the largest element will be at index n – 1. x,if you're using Python3 try to use input rather than raw_input. sort() method in Python: By default, the sort() method sorts the list in ascending order. " 1. Then we iterate through the list, and if we find a larger value than the current max, we assign that value to max. A Python program that can help you find and extract the second largest number in a list. " Find the new highest element, and its index. The lambda function lets us Second highest score. 4, 0. 1. It's trivial to show this is O(n) time and O(1) space. While this code may solve the question, including an explanation of how and why this solves the problem would really help to improve the quality of your post, and probably result in more up-votes. It first checks if the length of the list is less than 2. Remember that you are answering the question for readers in the future, not just the person asking now. input_list=[] while True: max = list[0] for x in list: if x > max: max = x print max In this example, we initialize the max value to the first element. Please do watch the complete video for I think the method given in chqrlie's answer to do this all in one pass is best. I need to find the second largest value in that list which isn't equal to 9999. (in the case above it would be 7. Example: Input: (10,20,23,5,2,90) #tupleOutput: 90Explanation: 90 is the largest element from Dictionaries in Python is same as Associative arrays or Maps in other languages. # Python program to I need to find the maximum difference in a list between any two elements. It does this by first checking whether the length of the list is less than 2, in which case it prints the entire list, or if the length of the list is 2 and the first and second elements are the same, in which case it also prints the entire So I have to find the second largest number from list. In this tutorial, we will write a Python program to find the second largest number in a list. 2) you have a list called sorted_list but you don't actually sort it 3) There's nothing in the question asking about filtering out odd numbers only 4) What does this provide that the previous answers 5 year ago didn't (besides answering a I also have to use a return statement. Examples: Input : List = 12 -> 35 -> 1 -> 10 -> 34 -> 1 Output : The second smallest element is 10. Python Program to find the Largest and Smallest Number in a List Example 1. Although Bubble Sort is not the most efficient sorting algorithm, it's easy to understand and implement. The sorted function returns a new sorted list from the items in the iterable. a = [1, 2, 5, 2, 7, 3, 9, 5] m1 = max(a) a. 2. For executing this program in Python, there are multiple approaches we can follow-By comparing each element for finding the largest number; By using max() function If we split a list around its largest number, we know that the second largest number is either in the left half or the right half. Once this is done, another method named ‘get_second_largest’ is defined that returns the second element from the end as Basically we are given a list of numbers and we are asked to write an algorithm to find the largest number in the list, note: the numbers are not in order and may contain decimals and negative numbers. x=int(input(&quot;Enter the 1st list = [3,8,2,9] current_max_number = list[0] for number in list: if number>current_max_number: current_max_number = number print (current_max_number) #it will display 9 as big number Note: the above code is to pick up the max and min by using for loop, which can be commonly used in other programming languages as well. a = np. There may be many approaches to find the smallest number in a list. Read each number in your python program using a for The task is to write a Python program to find the addition of these two numbers. Let’s see how to find the second maximum value in a Python dictionary. For [6,6,6,6,6,6,6,6,6,5], it is printing 6 instead of 5. See live demos, code examples and explanations for each approach. What does the "yield" keyword do in Python? 5582. Using two for loops, use bubble sort to sort the sublists based on the second value of the sublist. He provides courses for Maths, Science and Computer Science at Teachoo I wrote this simple code for a simple task of finding the second largest item in a list of integers: def second_largest(input_list): input_list. Find Maximum of two numbers in Python In this article, we will explore various methods to find maximum of two numbers in Python. The simplest way to find is by using a loop. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Given a Linked list of integer data. Conclusion # initialize the list of numbers my_list = [3, 12, 8, 19, 1, 8, 10] # initialize the largest_num variable to the first element of the list largest_num = my_list[0] # initialize the counter i to 1 i = 1 # continue looping until i reaches the end of the list while i < len(my_list): # check if the current element is greater than the largest_num Here's something using generator expressions that shouldn't have problems with very large lists. We have created a function second_largest_num() and passed the list to it and it will return the second largest number from that list. He has been teaching from the past 14 years. Use the Python set data type. How do I create a directory, and any missing parent directories? 2287. append(int(i)) great=0 for i in range(0,len(l)): for j in l: if l[i]>j: if l[i]>great: great=l[i] print great for i in range(20): great-=1 for j in l: if j==great: print "Second largest number is ",j break Time complexity: O(n) where n is size of given array Auxiliary space: O(1). Method 1: Sort the List and Select the Second Last Element. Introduction. Take in the number of elements and store it in a variable. The question is: write a Python program to find the second-smallest number in a list using the for loop. By traversing the entire list. For repeating elements it is giving wrong results. Golang program to find the largest element in a slice; Python Program to search an element in a tuple; C++ Program to Find kth Largest Element in a Sequence; Golang Program to Find the Largest Element in an Array; Python program to count occurrences of an element in a tuple; Python program to find the largest number in a list; Python program to The Program must take a number and print the second largest digit in the number. Problem statement − We are given a list, we need to calculate the largest element of the list. Sample Data: ([0, 9, 2, 4, 5, 6]) -> 9 Hey I recently started to learn python. Using a While Loop. My approach is to divide a list into two parts and then find the largest number into two parts and then compare two numbers. 2 6 9 5 ^idx2 4. This is common when organizing data, such as sorting a list of employees by their ages or scores. That said, if you really want to do it otherwise, here's another approach: Take three variables, assign them largest, second_largest, and third_largest, and walk through the list. # Find the Min and Max in a List without min/max using sorted() This is a three-step process: I found two ways to solve this. This would be the second highest in the original list. Here is a list of programs covered in this article: Find the second largest number in a list of 10 elements using the "for" loop. Approach to find largest number in a list. where K is also a number, write a Python program to How to Find the Second Largest Number in Python? There are many approaches to finding the second-largest number in Python. " The find_second_largest function uses the bubble_sort function to sort the list and then returns the second-to-last element, which is the second-largest number. In this article, we will explore various methods to find second largest number in a list. 13026. Python program to find the largest number from the list of the numbers entered through keyboard; 8 Need to print second Maximum Number in a given List Description - Given a list of numbers, find the second largest number in the list. So, starting from index (n – 2), traverse the remaining array in reverse order. The program takes a list and prints the second largest number in the list. Here I provide some of the approaches. Find largest element in an array Using operator. The max is the larger of the first item and the max of all the other items. ×. In this program, we used the python built-in functions such as set(), min(), max(), sort(), reverse() or without using any built-in function. Take in the elements of the list one by The find_second_largest function uses the bubble_sort function to sort the list and then returns the second-to-last element, which is the second-largest number. else statement How to take input from user in Python python program to find the largest number among the three input In this Python program, we'll create a program that finds the second largest number in a list of integers. Java Program to find Second Largest Number in an Array with examples of fibonacci series, armstrong number, prime number, palindrome number, factorial number, bubble sort, selection sort, insertion sort, swapping numbers etc. If the maximum number is not unique, return the index of the first instance. 76 Thus, we can write python program to find largest among N numbers using if-else, built-in methods such as reduce The program is a Python script that demonstrates two ways of finding the largest number in a list of numbers. import sys numbers = sys. Take input number for the length of the list using python input() function. By indexing the result using -1, you don't need to special case list sizes of 1 or 2; heck, you could even get clever and do (heapq. Sorting and Two-Traversal Approach: Refer to Find Second largest element in an array for the solutions using Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company method has the time complexity of O(n) where n is the number of elements in the list. For example the list from which I want to find k largest number be list1 > list1 = [0. This approach guarantees that the second largest number will be correctly identified regardless of the initial order of the Can anyone Please tell me how to How to find highest ,second highest number, Lowest Second Lowest number in given Array var numbers = new[] {855,3,64,6,24,75,3,6,24,45}; Any pointer and suggest The sorted() function returns a new sorted list from the items in the iterable. If the input has the biggest number first, the . 6 min read. 6. Then select the second last element from the list. This is O(number of highest elements * list size), so it scales poorly if your "three" grows, but right now it's Given a tuple, the task is to write a Python program to find the greatest number in a Tuple. Using LoopUse a loop (for loop) to iterate over the list and keep two variables max1 and max2 to keep track of largest and second largest number of list. Write a Python Program to find the Second Largest Number in a List of items using the sort() function, reverse() function, and for loop with a practical example. This python program allows users to enter the length of a List. When you run the above program, it will find the second largest number in the list and print the result. If we have something like . Use a loop (for loop) to iterate over the list and keep two variables max1and max2to keep track of largest and second largest number of list. In this tutorial, you will learn how to write Python program to find second largest number in an array. Here is my thought process: Step 1:Find Factors of X Step 2:Put factors of X in an array a Step 3:Analyze last element of array a Step 4:Check if last element of array a is Prime Step 5: if last element of array a is prime print "found the largest prime" along with the I have to find the 2nd biggest number in a list. Below is the program to find the largest number, I want to know how do I print the second largest number. Example: Input: LL = 10 -> 15 -> 5 -> 20 -> 7 -> 9 Output: Largest = 20 Second Largest = 15 Input: LL = 0 -> 5 -> 52 -> 21 Output: Largest = 52 Second Largest = 21 . Given a tuple, the task is to write a Python program to find the greatest number in a Tuple. If you have more equal number, but you want get rid of them - so that you can add the two biggest DIFFERENT numbers - you can do so: Finally, it returns the second element of the sorted list, which is the second largest number. On the second iteration before if-else values are the same except that pos = 2. 5, 0. The pass through the list is repeated until the list is sorted. Java Program to Find GCD of Two Numbers; Java Program to Find Largest of Three Numbers; Java Program to Find Smallest of Three Numbers Using Ternary Operator; Java Program to Check if a Number is Positive or Negative; Java Program to Check if a Given Number is Perfect Square; Java Program to Display Even Numbers From 1 to 100 This is an example for Python2. 0" write a python program to marks of 3 students and print student's data in descending order based on average and grade. This tutorial will show you the proper declaration of functions However, like the multidimensional arrays, we can also create multidimensional lists known as nested lists. The task is to write a program that efficiently finds the second smallest element present in the Linked List. Now you can write a function that gets an input list. Examples: Input: arr[] = {22, 33, 14, 55, 100, 12} Output: 55. I have tried to directly sort it but not able to make the not present condition Another way of doing this when repeating elements are presented in the array at hand. Find the maximum value in the filtered list using max. Apart from these two, you can use the for loop or while loop to iterate the list items and if statement to find the largest. In this video you will learn about how to Write a Python Program to Find The Second Largest Number in a ListPython S Given a tuple, the task is to write a Python program to find the greatest number in a Tuple. 3 Thanks. Let’s explore other different method to find second largest number in a list: See more Approach to find second largest number in a list. We used the numpy sort function to sort the array in ascending order. This is the simplest way. For In this python tutorial. I need to find the maximum difference in a list between any two elements. Write a Python function to find the k th largest element in a list. elif. Examples: Example1: Python Program to Rearrange the given Number to form the Smallest Number; Python Program to Find the Largest Number in a List; Python Program for Neon Bubble Sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order. e without using built-in libra 1) there's no reason not to do my_list = sorted([int(raw_input('Please type a number')) for _ in xrange(10)) versus typing extra stuff. In this tutorial, we will show you how to write a Python program to find the second largest number in a list. 5 Given a Linked list of integer data. Some of the approaches are mentioned below: By sorting the list and then printing the second largest element. I'm trying to do a lab work from the textbook Zelle Python Programming. you can assign an input to break the loop or add a counter. Example: Input: (10,20,23,5,2,90) #tupleOutput: 90Explanation: 90 is the largest element from tupleValues of a tuple are syntactically separated by ‘commas’. Also, if I input [6, 6, 6, 5], the program should output 5 as the second largest and not 6. Print the students with the top marks. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Write a Python Program to find the Largest and Smallest Number in a List with a practical example. Unlike lists, dictionaries stores data in key-value pair. 0. Output. Master everything from Python basics to advanced python concepts with hands-on practice and projects. We c Given an array arr[] consisting of N integers, the task is to find the second largest element in the given array using N+log 2 (N) – 2 comparisons. It basically creates two generators, one that cycles over its sequence every time the other generator advances once, and which(the former) terminates the first time the matching condition is found. Sort the list in ascending order. Approach: Store the maximum of first two nodes in a variable max. Take the Three 90 Challenge! Finish 90% of the course in 90 days, and receive a 90% refund. The returned values should be in a list as (smallest largest) Note that if needed, you can define other auxiliary functions which the minmax function can call in its body. List is an ordered set of values enclosed in square brackets [ ]. 2. Example: Input: (10,20,23,5,2,90) #tuple In this article, we will explore various methods to find second largest number in a list. Python Program to Find the Second Largest Number in a List Using Bubble Sort - When it is required to find the second largest number in a list using bubble sort, a method named ‘bubble_sort’ is defined, that sorts the elements of the list. The objective is to enable you to efficiently identify and Python List Exercises, Practice and Solution: Write a Python program to find the second largest number in a list. For a given list of numbers, the task is to find the largest number in the list. It does this by first checking whether the length of the list is less than 2, in which case it prints the entire list, or if the length of the list is 2 and the first and second elements are I'm trying to do a lab work from the textbook Zelle Python Programming. By doing so, the largest number is moved to the end of the sorted list. sort() return input_list[-2] However, for large Given a number and the task is to find the given number’s second-largest digit. Python program to print first n odd numbers in descending order. 5 Enter element 3: 4. In this tutorial, we discussed four amazing methods for finding the second largest number of a python list. We'll walk through the problem statement, the program itself, how it works, and provide input-output examples. You can also use a while loop to find the largest and smallest numbers in a list by repeatedly prompting the user for input until a specific condition is met. Main Program: The program defines a list and finds the second largest number using the find_second_largest function. Python. print great print "Second largest number is ", second_great(great,l) as pointed out by @Blckknght, the conversion to int is unneeded in this case because the digit are order correctly when handled individually, also you can use Write a Python Program to Find the second Largest Number in a Numpy Array. Use the following steps to write a python program to find the second largest element or number in the list using sort() method: Take input the length of x: max and second_last 9: 9 and 9 6: 9 and 9 4: 9 and 9 10: 10 and 9 13: 13 and 9 <<< 2: 13 and 9 3: 13 and 9 5: 13 and 9 Source code to display the largest number among three numbers in Python programming with output and explanation 66% off Learn to code solving problems and writing code with our hands-on Python course. See the code, output, and explanation for each method with examples. How do I pass a variable by reference? 5765. sort() #Putting the list to a set removes duplicates K=set(K) #change K back to list since set does not support indexing K=list(K) #To get the 5 largest elements print K[-N:] #To get the 5th largest element 1. def findKthLargest1(nums, k): nums. Although it is not necessary, it is more common t Step 1:Find Factors of X Step 2:Put factors of X in an array a Step 3:Analyze last element of array a Step 4:Check if last element of array a is Prime Step 5: if last element of array a is prime print "found the largest prime" along with the number itself, else, analyze second to last element in array a, and so on until at a[1] Step 6: if no Python 2: map(max, lists) Python 3: list(map(max, lists)) Of course the latter only works if you don't shadow the built-in list function with your variable (which is a bad idea anyway, so I used the name lists instead). The second method is to use a for loop to iterate through the list, comparing each number to a variable named "max" which is initialized as the first element of the list. a = [1, 2, 3 Given a list, the task is to write a Python program to concatenate all elements in a list into a string i. 3, 0. Now we will discuss all the The reason that it's still returning 9 is because you're mutating the list as you iterate over it. Examples: Input : list1 = [10, 20, 4] Output : 10 Input : list2 = [70, Learn how to write a Python program to find the second largest number in a list using sort, reverse, and for loop functions. So for example if the user types in the numbers 2456 457 13 999 35 the output will be as follows : the largest number is 2456 the smallest number is 💡 Problem Formulation: We intend to solve a common programming challenge: finding the second largest number in a list. the time complexity of this program is O(n). Highest Score Python. nsmallest(3, L) or [None])[-1] so you In this example, the list is first sorted in ascending order. Input : List = 10 -> 5 -> 10 Output : The second largest element is 10. We can also use Python sorted() function to find the second largest number Given two lists with elements and indices, write a Python program to find elements of list 1 at indices present in list 2. In this video, We are explaining about Python Program to Find the Largest, Minimum & Second-Largest Number in a List. nlargest function is mentioned but since I have more than one value Davneet Singh has done his B. The task is to write a program that efficiently finds the second largest element present in the Linked List. 4 Enter element 8: 65. data = [11,22,1,2,5,67,21,32] max1 = data[0] # largest num max2 = data[1] # second Learn three approaches to solve the problem of finding the second largest number in a list using Python. For example the third largest number among 1,5,4,2,7,9 is 5. Given a list of numbers, the task is to write a Python program to find the second largest number in given list. Stay on track, keep progressing, and get When working with lists of lists, there are times when we need to sort the sublists by the second element. i have tried this ==> a=raw_input("Please enter the nummber =") l=list() for i in a: l. 5 In this code I want to find the largest and second largest inputted number (the age of faculty members of a university). Convert bytes to a string in Python 3. e. Find the smallest/largest number in a list/tuple # Program to Find the smallest number in a list. It may happen similar number repeating two times, then also check two number should be different. 5] Here n = 7 and if k = 3, that is if I want to find 3 largest numbers from a list of 7 numbers then output should be 0. So, if the input is like s = p84t3ho1n, then the output will be 4 as the digits are [1,3,4,8], so second largest digit is 4. The built-in max() function returns the highest list item, the sort() function sorts the items ascending, and the last item will be the largest. The second largest number is the number that is less than the maximum but greater than all other numbers in the list. There are various ways to find the second largest number from a list. Find the second-smallest number in a list of 10 elements. ; Store the minimum of first two nodes In this article, we will write a python program to find the largest number among the three input numbers. Python3 Python program to find second largest number from list; This tutorial will show you how to find second largest number from list in python using sort, max, remove method and custom fuction. Python Program to find the Second Largest Number in a List using sort. Algorithm: Initialize a list of tuples. The easiest way to sort a list by the second element of each sublist is by using the sorted() function with a lambda function as the key. This article was created to cover some programs in Python that find and print the second largest number or element in a given list. Examples: Inpu. At We are using for loop here to find the second largest number from a Python List. Auxiliary Space is O(1) Method #9:Using reduce. I wrote the program below that runs properly when the input first encounters the second biggest number. def For the record, in real code, I'd skip sorting in favor of heapq. List stores some values called elements in it, which can be accessed by their particular index. This is a Python Program to find the Second largest number in a list. m1 = 10 m2 = 0 i = 10 pos = 1 This means that the final else branch gets executed and since it sets m2=m2 nothing changes. Example: Input: (10,20,23,5,2,90) #tupleOutput: 90Explanation: 90 is the largest element from 1. 7, 0. gt() Create a array of integers and assign it to the variable arr. My code is working for most inputs but for some inputs, it is failing. source code : https://theprogrammingporta Write a program to input N numbers and then print the second largest number. Replace it by None. Stack Overflow. The first method is to use the built-in Python function "max()" and passing the list as an argument. Next, we used For Loop to add numbers to the list. Problem: Given a list of integers, return the index of the maximum number. So, we can trivially find the second largest number by simply finding the larger of the largest number in the left and right half of the list. array([[1,1],[3,4]]) then the second largest element will be 3, not 1. also add a loop for user enters values. So all we'd have to do is return the k-last index. Write a Python program to find the second largest number in a list This program is finding the second largest element in the given list 'num' of integers. 2 Enter element 7: 5. The list item at index -1 stores the largest number in the list. 76 Thus, we can write python program to find largest among N numbers using if-else, built-in methods such as reduce Learn Python from scratch with our Python Full Course Online, designed for beginners and advanced learners alike. 8 Enter element 5: 9. Python program to find second largest number in a list In this article, we will explore various methods to find second largest number in a list. Take in a list containing sublists. In your case of finding the maximum distance, as others pointed out, you only need to look at the largest and the smallest list item which can both be determined in linear time First I thought to do this by sorting the list first, but this might turn out to be very bulky. To check whether a given element exists in a variable is important and sometimes the item we must search for, can be the maximum, minimum, most frequent etc. This approach has a time complexity of O(n log n) due to the sorting operation. I am doing it through simple loops. Note:-There might be repeated numbers in the list. Thanks in advance. By removing the maximum element. You can use max method to get the largest value and remove it,so that next time when you use max you will get the second largest number. Please do watch the complete video for The task is to write a Python program to find the addition of these two numbers. 76 The largest number is: 65. My way is to take the input as string and use try/catch to convert it to integer,and then store them to a list. Here we will take the help of built-in functions to reach the solution of the problem statementUsing sort() function In the python programming guide we are going to learn python program to find the second largest number in a list, python program to find 2nd largest number in a list, write a python program to find the second largest element in the list Write a Scheme function that takes a simple list of numbers as its parameter and returns the second largest and second smallest numbers in the list. Tutorials. Examples: Input : list1 = [10, 20, 4] Output : 10 Input : list2 = [70, 11, 20, 4, 100] Output : 70. I will show you how to find the second number amoung three numbers with two alternative way. Write a Python program to find the largest of Two Numbers using Elif Statement and Nested If statement with an example. And logical too: write a program to find the largest number. How to access the index value in a 'for' loop? 3836. Take in the elements of the list one by one. The example usage at the end of the program demonstrates how to use the second_largest function with a sample list. Method 1: Sorting is an easier but less optimal method. Here is its answer: 1. Find the second largest element in a list of n elements. Method #1: Naive Approach: A general approach is to find the largest value of the dictionary and then iterate over the dictionary maintaining the value that must be Python program to find the largest number in a list - In this article, we will learn about the solution to the problem statement given below. How do I get the Write a program that asks the user to type in 5 numbers , and that outputs the largest of these numbers and the smallest of these numbers. Approach 1: You can Sort the list using sort method. Python Program to find Largest of Two Numbers using Elif Statement. Python Programming Puzzles Exercises, Practice and Solution: Write a Python program to find the following strange sort of list of numbers: the first element is the smallest, the second is the largest of the remaining, the third is the smallest of the remaining, the fourth is the smallest of the remaining, etc. Skip to main content. Python Python Django Numpy Pandas Tkinter Pytorch Flask OpenCV AI, ML and Data Science Artificial Intelligence Machine Python- Finding the largest number in a list using forloop or while loop. we are given a list of strings and we expect a With unique numbers. sort() return nums[-k] On the first iteration of the for loop just before the if-else block is executed your variables have following values:. The last step is to access the list element at index 1. Examples: Input : List = 12 -> 35 -> 1 -> 10 -> 34 -> 1 Output : The second largest element is 34. Flatten the list of tuples into a single list of integers using reduce. Python program to check whether square root of a given number is prime or not; 5. 3 Enter element 4: 6. Optional: restore the found elements to the list. Find the largest number in a list using the max() method. If there is only one number present in the list, return 'not present'. 8 Enter element 6: 34. However, the max Check out Write a Python Program to Divide Two Numbers. pop(a. In list [1,2,3,4,5] the maximum difference is 4 (between elements 1 and 5) using for loops. Although there are many approaches to find the largest number among the two numbers, we discuss a few of them. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I also have to use a return statement. Remove any 0 or False values from the flattened list using filter. Write a Python program to find the largest odd number in a given list of integers. . Enter the number of elements: 8 Enter element 1: 1. I will assume, that the user only enters valid numbers: def get_input(): input_list = list() # Creates am empty list input_str = "" while input_str != "-1": # This In this Python program, we will learn how to find the second largest element from a given List. Sample Solution-1:. By using a max heap. Accept three numbers from the user and display the second largest number in python. Python 3 program to find out the third-largest number in a list : In this python tutorial, we will learn how to find out the third largest number in a list. For executing this program in Python, there are multiple approaches we can follow: By sorting the list and printing the Here is the code to find the 2nd largest number in the list without using any inbuilt functions. View Answer Bookmark Now Write a program to take an integer a as an input and check whether it ends with 4 or 8. Tech from Indian Institute of Technology, Kanpur. To find the second largest number, we simply accessed the element at the second-to-last index of the sorted list, sorted_list[-2]. Python program to find the second largest number from a given listConditions : Without using remove(), set(), max(), sort() i. Using LoopUse a loop (for loop) to iterate over the list and keep two Python Program to Find the Second Largest Number in a List. owo bvr vgom mcrtr ceizvv qfg jrteq sgvbk phkw vzwq