leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
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2125.cpp (322B)

      1 class Solution {
      2 public:
      3     int numberOfBeams(const vector<string>& bank) const {
      4         int res = 0, prev = 0;
      5         for(const auto& floor: bank) {
      6             int cnt = 0;
      7             for(const char c: floor) cnt += c == '1';
      8             if(cnt) res += cnt * prev, prev = cnt;
      9         }
     10         return res;
     11     }
     12 };