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  1. #include <iostream>
  2. #include <cstring>
  3. using namespace std;
  4.  
  5. char arr[255];
  6.  
  7. int mod(int a) {
  8. 	int c=0;
  9. 	for(int i=0; i<strlen(arr); i++) c=((arr[i]-'0')+c*10)%a; 
  10. 	return c;
  11. 	}
  12.  
  13. int gcd(int a, int b) {
  14. 	if(b==0) return a;
  15. 	else return gcd(b, a%b);
  16. }
  17.  
  18. int main() {
  19. 	// your code goes here
  20. 	int n, a;
  21. 	cin>>n;
  22. 	while(n--) {
  23. 		cin>>a>>arr;
  24. 		if(a==0) cout<<arr<<endl;
  25. 		else {
  26. 			int d=mod(a);
  27. 			cout<<gcd(a, d)<<endl;
  28. 		}
  29. 	}
  30. 	return 0;
  31. }
Success #stdin #stdout 0s 3300KB
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https://ideone.com/sNmT36
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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