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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main() {
  6.     ios_base::sync_with_stdio(false);
  7.     cin.tie(NULL);
  8.  
  9.     long long m, n;
  10.     cin >> m >> n;
  11.     cout << m * (m + 1) *  n * (n + 1) / 4;
  12. }
Success #stdin #stdout 0s 5288KB
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Standard input is empty
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-1388935393226771328
https://ideone.com/vcsO7q
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
secret

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