Contains Duplicate Tamil Tutorial C++ (LeetCode 217 Easy)

Опубликовано: 23 Июль 2026
на канале: Akhil Chakravarthy - Tamil Coding Tutorials
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Hey Guys! I teach competitive coding questions in Tamil:)
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Problem link: https://leetcode.com/problems/contain...
Problem Description:

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
Example 3:

Input: [1,1,1,3,3,4,3,2,4,2]
Output: true