fork download
copy 
  1. #include <iostream>
  2. #include <string>
  3. #include <cstdint>
  4. #include <limits>
  5.  
  6. std::string Radix62c(std::uint64_t N, std::string buff) {
  7.   std::string const Char = "0123456789abcdefghijklnmopqrstuvwxyzABCDEFGHIJKLNMOPQRSTUVWXYZ";
  8.   int const Radix = 62;
  9.   return (N == 0) ? buff
  10.                   : Radix62c(N / Radix, Char[N % Radix] + buff);
  11. }
  12.  
  13. std::string Radix62b(std::uint64_t N) {
  14.   std::string const Char = "0123456789abcdefghijklnmopqrstuvwxyzABCDEFGHIJKLNMOPQRSTUVWXYZ";
  15.   int const Radix = 62;
  16.   return (N == 0) ? ""
  17.                   : Radix62b(N / Radix) + Char[N % Radix];
  18. }
  19.  
  20. std::string Radix62a(std::uint64_t N) {
  21.   std::string const Char = "0123456789abcdefghijklnmopqrstuvwxyzABCDEFGHIJKLNMOPQRSTUVWXYZ";
  22.   std::string Ret;
  23.  
  24.   int const Radix = 62;
  25.   while (N != 0){
  26.     int Ch = N % Radix;
  27.     N /= Radix; /* changed */
  28.     Ret = Char[Ch] + Ret;
  29.   }
  30.   return Ret;
  31. }
  32.  
  33. int main() {
  34.   std::uint64_t N = std::numeric_limits<std::uint64_t>::max();
  35.   std::cout << N << " == " << Radix62a(N) << std::endl;
  36.   std::cout << N << " == " << Radix62b(N) << std::endl;
  37.   std::cout << N << " == " << Radix62c(N, "") << std::endl;
  38.   return 0;
  39. }
  40. /* end */
  41.  
Success #stdin #stdout 0s 3476KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
18446744073709551615 == lYGhA16ahyf
18446744073709551615 == lYGhA16ahyf
18446744073709551615 == lYGhA16ahyf
https://ideone.com/ea6Wna
language:
C++14 (gcc 8.3)
created:
10 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!