fork download 
  1. #include <iostream>
  2. #include <iomanip>
  3. #include <climits>
  4.  
  5. int main()
  6. {
  7.     std::string s = "abcdefghijklmnopqrstuvwxyz0123456789";
  8.  
  9.     bool used[1 << CHAR_BIT]{};
  10.     bool all_unique = true;
  11.     for (auto x : s)
  12.     {
  13.         if (used[static_cast<unsigned char>(x)])
  14.         {
  15.             all_unique = false;
  16.             break;
  17.         }
  18.         used[static_cast<unsigned char>(x)] = true;
  19.     }
  20.  
  21.     std::cout << std::boolalpha << all_unique << '\n';
  22. }
Success #stdin #stdout 0s 3468KB
comments (?)
stdin 
Standard input is empty
stdout 
true
https://ideone.com/Q0ULXv
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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!