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Contains Duplicate. Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the array, and it should return false if every element is distinct. Example 1: Input: [1,2,3,1] Output: true. Example 2: Input: [1,2,3,4] Output: false.
Jul 4, 2016 · Description. 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. Example 2: Input: nums = [1,2,3,4] Output: false. Example 3: Input: nums = [1,1,1,3,3,4,3,2,4,2] Output: true. Constraints:
217. Contains Duplicate. Easy. 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. Example 2: Input: nums = [1,2,3,4] Output: false. Example 3: Input: nums = [1,1,1,3,3,4,3,2,4,2] Output: true. Constraints:
class Solution { public: bool containsDuplicate(vector<int>& nums) { unordered_set<int> seen; for (const int num : nums) if (!seen.insert(num).second) return true; return false; } }; LeetCode Solutions in C++20, Java, Python, MySQL, and TypeScript.
Feb 23, 2024 · A beginner-friendly explanation of my solution to LeetCode problem #217 Intuition To identify duplicates in a collection efficiently, a set is an ideal data structure due to its inherent...
217 Contains Duplicate - Easy Problem: 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.
217. Contains Duplicate. Description. 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. Example 2: Input: nums = [1,2,3,4] Output: false. Example 3: Input: nums = [1,1,1,3,3,4,3,2,4,2] Output: true. Constraints:
Nov 13, 2023 · Today we are going to solve Leetcode 217 problem — Contains Duplicate. Problem Statement. Given an integer array nums, return true if any value appears at least twice in the array, and return...
Contains Duplicate - LeetCode. Can you solve this real interview question? Contains Duplicate - Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.
May 18, 2024 · May 18, 2024. -- I tackled Leetcode problem 217, which asks to determine if a list contains any duplicates. Problem statement: Given an integer array nums, return true if any value appears at...
