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how to use comparator funtion in priority queue in c++ Code Example
how to use comparator funtion in priority queue in c++ 
// suppose you want to apply comparator on pair <int, string>
// declaration of priority queue
priority_queue<pair<int, string>, vector<pair<int, string>>, myComp> pq;
// here myComp is comparator
struct myComp {
  bool operator()(
    pair<int, string>& a,
    pair<int, string>& b)
  {
    return a.first > b.first;
    // can write more code if required. depends upon requirement.
  }
};



Cpp

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Category:
 Coding
Sub Category:
 Code Example
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