Nov 27, 2024 · Removing duplicates from a list is a common operation in Python which is useful in scenarios where unique elements are required. Python provides multiple methods to achieve this. Using set() method is most efficient for unordered lists.

Aug 29, 2024 · Given an integer array arr [], check if the array contains any duplicate value. Examples: Explanation: 4 is the duplicate value. Explanation: All values are distinct. The simple idea is to use a nested loop to compare each element in the array with every other element.

Jan 11, 2018 · The has_duplicate() Function takes care of determining if a list contains duplicates. def has_duplicates(listObj): return len(listObj) != len(set(listObj)) print(has_duplicates([1, 2, 1, 1, 4, 7])) ## PRINTS: True print(has_duplicates([9, 2, 5, 4, 7])) ## PRINTS: False

In-depth solution and explanation for LeetCode 217. Contains Duplicate in Python, Java, C++ and more. Intuitions, example walk through, and complexity analysis. Better than official and forum solutions.

You can print duplicate and Unqiue using below logic using list. def dup(x): duplicate = [] unique = [] for i in x: if i in unique: duplicate.append(i) else: unique.append(i) print("Duplicate values: ",duplicate) print("Unique Values: ",unique) list1 = [1, 2, 1, 3, 2, 5] dup(list1)

Contains Duplicate - Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct. Example 1: Input: nums = [1,2,3,1] Output: true Explanation: The element 1 occurs at the indices 0 and 3.

May 24, 2020 · This can be done simply by converting the list into set, which cannot contain duplicates. Converting the list into set will remove all duplicates so if the set is smaller than the list, the list contains duplicates

Jan 22, 2024 · Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct. This problem is one of the easier problems to do as long as...

Learn how to check for duplicate elements in a list using Python with various methods and examples.

Write a Python function `contains_duplicates` that determines whether a given list of integers contains any duplicate elements. The function should return `True` if there are duplicates and `False` otherwise. - The input will always be a list of integers. - The list can be empty, in which case the function should return `False`.