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  1. #include <iostream>     
  2. using namespace std;
  3. int main () {
  4.     long m, n, p;
  5.     cin >> m >> n;
  6. 	p= (m*n - (m + n - 1)) + 1;
  7.     cout << p << endl;
  8. 	return 0;
  9. }
Success #stdin #stdout 0s 3416KB
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https://ideone.com/qxW8sb
language:
C++14 (clang 8.0)
created:
8 years ago
visibility:
secret

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