Given an array of integers, every element appears twice except for one. Find that single one.
Note:Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory?
public class Solution {
public int singleNumber(int[] nums) {
int n = nums.length;
int result = nums[0];
for(int i = 1;i < n;i++)
{
result ^= nums[i];
}
return result;
}
}
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