16. 3Sum Closest

与3Sum思路相同

class Solution {
    public int threeSumClosest(int[] nums, int target) {
        int mindis = Integer.MAX_VALUE;
        Arrays.sort(nums);
        int sum = 0;
        int len = nums.length;
        
        for(int i=0;i0&&i0){
                    q--;
                }else{
                    return target;
                }
            }
        }
        return sum;
    }
}