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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7. 	int m, n;
  8. 	cin >> m >> n;
  9. 	cout << ((m - 1) * m * n / 2) + ((n - 1) * n * m / 2);
  10. 	return 0;
  11. }
Success #stdin #stdout 0s 5328KB
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Standard input is empty
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-608096320
https://ideone.com/wPU34r
language:
C++14 (gcc 8.3)
created:
8 hours ago
visibility:
public

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