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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     unsigned long long  m, n;
  6.     cin >> m >> n;
  7.  
  8.     long long factorial = 1;
  9.     for (int i = m; i < n; i++) {
  10.         factorial *= i;
  11.     }
  12.  
  13.     cout << factorial;
  14.     return 0;
  15. }
  16.  
Success #stdin #stdout 0s 5320KB
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https://ideone.com/8cTJzN
language:
C++14 (gcc 8.3)
created:
6 days ago
visibility:
public

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