LeetCode - Algorithms - 1346. Check If N and Its Double Exist

Problem

1346. Check If N and Its Double Exist

C#

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public class Solution {
    public bool CheckIfExist(int[] arr) {
        bool existed = false;
        for(int i = 0; i < arr.Length; i++) {
            for(int j = 0; j != i && j < arr.Length; j++) {
                if (arr[i]==2*arr[j] || arr[i]*2==arr[j]) {
                    existed = true;
                    break;
                }
            }
        }
        return existed;
    }
}

Submission Detail

  • Accepted
  • Runtime 105 ms, Beats 80.20%
  • Memory 41 MB, Beats 14.60%