What you want to do is: for each value, if it's the same as the last value, just append it to the list of last values; otherwise, create a new list. You can translate that English directly to Python: …

Jun 22, 2020 · Due to list.index(x) will only return the index in the list of the first item whose value is x. Is there any way to return every index of same values in the list. For example, I have a list …

Jan 9, 2017 · I've updated the answer to clarify that it only finds the intersection. Cleanest way would probably be to use reduce: def R(a, b, seen=set()): a.update(b & seen) seen.update(b) …

Dec 10, 2024 · Using set () is the best method to check if all items are same in list. Explanation: Converting given list to set will take O (n) time, because we are adding each item in set. In …

How to get the index of same element in list in the Python programming language - Get index of same element in list using for loop

May 3, 2025 · Our task is to check if two lists are identical or not. By “identical”, we mean that the lists contain the same elements in the same order. The simplest way to check if two lists are …

In Python, there are many methods available on the list data type that help you check the same element or not. In this post, we are using native method, set (), len (), all (), count (), groupby …

Mar 3, 2024 · For instance, given two lists [1,2,3,4] and [2,3,4,2], the program should check if there are elements with matching values and frequencies (in this case, no). Method 1: Using a …

Learn how to check if all elements in a list are the same using Python with simple examples and explanations.

Mar 31, 2023 · There are two main methods to determine whether two Python lists contain the same elements in any order: sorting and comparing or using sets. Sorting and comparing work …