leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
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0227.cpp (465B)

      1 class Solution {
      2   public:
      3     int calculate(string s) {
      4         stringstream ss("+" + s);
      5         char op;
      6         int n, last, ans = 0;
      7         while (ss >> op >> n) {
      8             if (op == '+' || op == '-') {
      9                 n = op == '+' ? n : -n;
     10                 ans += n;
     11             } else {
     12                 n = op == '*' ? last * n : last / n;
     13                 ans = ans - last + n;
     14             }
     15             last = n;
     16         }
     17         return ans;
     18     }
     19 };