leetcode

0 class Solution {

1 public:

2 int finalValueAfterOperations(const vector<string> &operations) const {

3 int res = 0;

4

5 for (const auto &op : operations) {

6 if (op.front() == '-' || op.back() == '-')

7 res--;

8 else

9 res++;

10 }

11

12 return res;

13 }

14 };