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  1. #include <iostream>
  2. #include <set>
  3. using namespace std;
  4.  
  5. int main() {
  6.     int numbers[] = { 2, 6, 7, 4, 5, 4, 1, 8, 9, 0, 7, 4 };
  7.  
  8.     cout << (sizeof(numbers) / sizeof(numbers[0]) - set<int>(cbegin(numbers), cend(numbers)).size()) << endl;
  9. }
Success #stdin #stdout 0s 3412KB
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Standard input is empty
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https://ideone.com/OpGbNl
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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