Leetcode: Single Number
2013-10-16 05:57
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http://oj.leetcode.com/problems/single-number/
class Solution {
public:
int singleNumber(int A[], int n) {
// Note: The Solution object is instantiated only once and is reused by each test case.
int res=A[0];
for(int i=1;i<n;i++){
res=res^A[i];
}
return res;
}
};
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