【力扣/牛客刷题】1. 两数之和

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(target == nums[i] + nums[j]){               
                    arr[0] = i;
                    arr[1] = j;
                    return arr;
                }
            }
        }
        return arr;
    }
}