C++ | Counting
Code

# Code
```cpp []
class Solution {
public:
    int winningPlayerCount(int n, vector<vector<int>>& pick) 
    {
        vector<vector<int>>count(10,vector<int>(11,0));
        unordered_set<int>st;
        for(auto &x:pick)
        {
            count[x[0]][x[1]]++;
            if(count[x[0]][x[1]] > x[0])
               st.insert(x[0]);
        }
        return st.size();
    }
};
```
['C++']