vector<int> twoSum(vector<int>& nums, int target) {

for(int i = 0 ; i < nums.size() ; i ++)

for(int j = i + 1 ; j < nums.size() ; j ++)

if(nums[i] + nums[j] == target){

int res[] = {i, j};

return vector<int>(res, res + 2);

}

throw invalid_argument("the input has no solution");

}

for(int e: vec)

cout << e << " ";

cout << endl;

const int nums[] = {0,4,3,0};

vector<int> nums_vec( nums, nums + sizeof(nums)/sizeof(int) );

int target = 0;

printVec(Solution().twoSum(nums_vec, target));

return 0;

}