[LeetCode/릿코드] 136. Single Number

문제

 

 

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풀이

 

 

 

import java.util.Arrays;
import java.util.Collections;
class Solution {
    public int singleNumber(int[] nums) {
        int answer = 0;
        
        for(int i : nums) {
            answer ^= i;
        }
        return answer;
    }
}