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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. long long gcd(long long a,long long b){
  4. 	if(!b)return a;
  5. 	return gcd(b,a%b);
  6. }
  7. int main() {
  8. 	long long a,b,c,l;
  9. 	int cases;cin>>cases;
  10. 	while(cases--){
  11. 		cin>>a>>b>>l;
  12. 		long long gccd=gcd(a,b);
  13. 		long long lcm=(a*b)/gccd;
  14. 		long long s=1,e=l,ans=0;
  15. 		while(s<=e){
  16. 			c=(s+e)/2;
  17. 			cout<<c<<endl;
  18. 			if(((lcm*c)/(gcd(gccd,c)))>=l){
  19. 				ans=c;
  20. 				e=c-1;
  21. 			}
  22. 			else s=c+1;
  23. 		}
  24. 		if(ans)cout<<ans<<endl;
  25. 		else cout<<"impossible"<<endl;
  26. 	}
  27. 	return 0;
  28. }
Success #stdin #stdout 0.01s 5292KB
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https://ideone.com/qxrvCz
language:
C++14 (gcc 8.3)
created:
38 days ago
visibility:
public

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