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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	string s;
  7. 	cin>>s;
  8. 	int b; cin>>b;
  9. 	int n = s.size();
  10. 	int sum = 0;
  11. 	for(int i = 0;i< n ;i++){
  12. 		if(s[i] == '1'){sum+=pow(b,n-i-1);}
  13.  
  14. 	}
  15. 	cout<<sum;
  16. }
Success #stdin #stdout 0s 5316KB
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stdin
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1100
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stdout
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12
https://ideone.com/35UeeR
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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