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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. unsigned long long f(unsigned long long n, unsigned long long m) {
  5.     if (n % m == 0) return m;
  6.     if (m % n == 0) return n;
  7.     if (m > n) f(m % n, n);
  8.     else  f(n % m , m);
  9. }
  10.  
  11. int main() {
  12.     unsigned long long n, m, t;
  13.     cin >> m >> n;
  14.     t = f(m, n);
  15.     cout << t;
  16.     return 0;
  17. }
Success #stdin #stdout 0s 4180KB
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https://ideone.com/csulP1
language:
C++14 (clang 8.0)
created:
6 years ago
visibility:
secret

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