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class Solution {
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 public:
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  vector<string> subdomainVisits(vector<string> &cpdomains) {
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    vector<string> v;
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    unordered_map<string, int> m;
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    for (auto it : cpdomains) {
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      string rep = "";
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      int i = 0;
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      while (it[i] != ' ') {
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        rep += (it[i]);
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        i++;
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      }
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      int r = stoi(rep);
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      m[it.substr(i + 1, it.size())] += r;
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      while (it[i] != '.') {
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        i++;
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      }
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      m[it.substr(i + 1, it.size())] += r;
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      i++;
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      while (i < it.size() and it[i] != '.') {
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        i++;
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      }
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      if (i != it.size()) {
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        m[it.substr(i + 1, it.size())] += r;
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      }
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    }
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    for (auto it : m) {
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      string a = it.first;
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      string b = to_string(it.second);
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      a = b + " " + a;
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      v.push_back(a);
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    }
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    return v;
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  }
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};