leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
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2085.cpp (392B)

      1 class Solution {
      2   public:
      3     int countWords(vector<string> &words1, vector<string> &words2) {
      4         unordered_map<string, int> um1, um2;
      5 
      6         for (auto &t : words1)
      7             um1[t]++;
      8         for (auto &t : words2)
      9             um2[t]++;
     10 
     11         int count = 0;
     12         for (auto &[str, cnt] : um1)
     13             if (cnt == 1 && um2[str] == 1) count++;
     14         return count;
     15     }
     16 };