题目:https://leetcode.com/problems/single-number-ii/
代码:
public class Solution {
public int singleNumber(int[] nums) {
Arrays.sort(nums);
int i;
for(i=0;i<nums.length-2;i=i+3)
{
if(nums[i]!=nums[i+1]||nums[i]!=nums[i+2])
break;
}
return nums[i];
}
}