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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	const int TEN = 10;
  6. 	int n, first_digit, number = 0;
  7. 	cin >> n;
  8. 	int n_copy = n;
  9.     while (n > 0) {
  10.         first_digit = n % TEN;
  11.         n /= TEN;
  12.     }
  13.     while (n_copy) {
  14.       if ((n_copy % TEN) % first_digit == 0)
  15.       ++number;
  16.       n_copy /= TEN;
  17.     }
  18.       if (first_digit == 0) {
  19.     	cout << number;
  20.       }
  21.       else {
  22.       	cout << number - 1;
  23.       }
  24.     return 0;
  25. }
Success #stdin #stdout 0.01s 5492KB
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https://ideone.com/TU3Kll
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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