#1 Leetcode ‘Java

class Solution {
    public int[] twoSum(int[] nums, int target) {
        int[] arr = new int[2];
        for (int i = 0; i < nums.length; i++) {
            for (int j = i + 1; j < nums.length; j++) {
                if (nums[i] + nums[j] == target) {
                    arr[0] = i;
                    arr[1] = j;
                    return arr;
                }
            }
        }
        return new int[0];
    }
    }