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  1. #include <iostream>
  2. #include <cmath>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7.     long long line, base, index,which,pos;
  8.     char letter;
  9.     cin >> line;
  10.  
  11.     for(long long i=0; i<line; i++)
  12.     {
  13.         cin>>base>>index;
  14.  
  15.         long long rank,order;
  16.         rank = index;
  17.         order = 0;
  18.         while(rank > 0){
  19.             order++;
  20.             rank-=order*pow(base,order);
  21.         }
  22.  
  23.         index = rank+order*pow(base,order);
  24.         which = index/order;
  25.         pos = index%order;
  26.         pos = order - pos -1; //???
  27.  
  28.         for(long long j=0; j<pos; j++){
  29.             which /=base;
  30.         }
  31.  
  32.         letter = 0x61 + which%base;
  33.         cout << letter<<endl;
  34.  
  35.     }
  36.  
  37. }
  38.  
  39.  
Success #stdin #stdout 0s 4392KB
comments (?)
stdin
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6
4 5
4 3
2 32
26 24
26 50
4 27
stdout
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a
d
b
y
a
d
https://ideone.com/EUmaMt
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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