fork download
copy 
  1. #include <bits/stdc++.h>    
  2. #define fastio() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
  3. #define pb  push_back
  4. #define show(x) cout<<(#x)<<" : "<<x<<endl;
  5. #define ll  long long
  6. #define ld  long double
  7. #define fill(a,val) memset(a,val,sizeof(a))
  8. #define mp  make_pair
  9. #define ff  first
  10. #define ss  second
  11. #define pii pair<ll,ll>
  12. #define sq(x) ((x)*(x))
  13. #define all(v) v.begin(),v.end()
  14. #define rall(v) v.rbegin(),v.rend()
  15. const ll INF     = 1ll*1000*1000*1000*1000*1000*1000 + 7;
  16. using namespace std;
  17.  
  18. ll power(ll x, ll y) 
  19. { 
  20.     if (y == 0) 
  21.         return 1; 
  22.     else if (y % 2 == 0) 
  23.         return power(x, y / 2) * power(x, y / 2); 
  24.     else
  25.         return x * power(x, y / 2) * power(x, y / 2); 
  26. } 
  27.  
  28.  
  29. int main() 
  30. {
  31. int T;
  32. cin>>T;
  33. while(T--)
  34. {
  35.  
  36. ll A;
  37. string B;
  38. cin>>A>>B;
  39.  
  40. ll X=B.length();
  41. ll P=stoi(B);
  42.  
  43. if (P==(power(10, X)-1))
  44. X=B.length();
  45. else
  46. X=B.length()-1;
  47.  
  48. ll C=A*X;
  49.  
  50.  
  51. cout<<C<<'\n';
  52.  
  53. }
  54. 	return 0;
  55. }
Success #stdin #stdout 0s 4308KB
comments (?)
stdin
copy 
3
1 11
4 99
191 31415926
stdout
copy 
1
8
1337
https://ideone.com/8yl3AZ
language:
C++ 4.3.2 (gcc-4.3.2)
created:
4 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!