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  1. #include <iostream>
  2. #include <map>
  3. using namespace std;
  4.  
  5. int main() {
  6.     map<int, int> m1;
  7.     m1.insert({2, 30});
  8.     m1.insert({1, 40});
  9.     m1.insert({3, 60});
  10.  
  11.     int cnt1 = m1.count(1); // 1
  12.     int cnt2 = m1.count(9); // 0
  13. }
  14.  
Success #stdin #stdout 0.01s 5280KB
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stdin 
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stdout 
Standard output is empty
https://ideone.com/qWlI5j
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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