中金所

第三题 三数之和 唉正则忘记了，暴力split出来的 但是时间不够了没交上去我真服了

package gongchuang;



import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        String[] s1 = s.split("=");
        String[] s2 = s1[1].split("\\[");
        String[] s3 = s2[1].split("\\]");
        String[] number = s3[0].split(",");
        int[] n = new int[number.length];
        for (int i = 0; i < number.length; i++) {
            n[i] = Integer.valueOf(number[i]);
        }
        List<List<Integer>> result = threeSum(n);
        for (List<Integer> l1 : result) {
            System.out.println(l1);
        }
    }
    public static List<List<Integer>> threeSum(int[] nums) {
        List<List<Integer>> result = new ArrayList<>();


        Arrays.sort(nums);


        for (int i = 0; i < nums.length; i++) {
            if (nums[i] > 0) {
                return result;
            }


            if (i > 0 && nums[i] == nums[i - 1]) {
                continue;
            }
            int left = i + 1;
            int right = nums.length - 1;
            while (left < right) {
                int sum = nums[i] + nums[left] + nums[right];
                if (sum > 0) {
                    right--;
                } else if (sum < 0) {
                    left++;
                } else {
                    result.add(Arrays.asList(nums[i], nums[left], nums[right]));
                    while (left < right && nums[right] == nums[right - 1]) {
                        right--;

                    }
                    while (left < right && nums[left] == nums[left + 1]) {
                        left++;

                    }
                    right--;
                    left++;
                }
            }
        }
        return result;
    }
}