fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. long long func(int base10) 
  5. {
  6.     long long base2 = 0;
  7.  
  8.     for (int mask = 0x80; mask != 0; mask >>= 1)
  9.     {
  10.         base2 *= 10;
  11.         if (base10 & mask) ++base2;
  12.     }
  13.  
  14.     return base2;
  15. }
  16.  
  17. #define TEST(x) cout << x << ": " << func(x) << endl
  18.  
  19. int main()
  20. {
  21.     TEST(0);
  22.     TEST(10);
  23.     TEST(65);
  24.     TEST(127);
  25.     TEST(128);
  26.     TEST(249);
  27.     TEST(255);
  28.     return 0;
  29. }
Success #stdin #stdout 0s 2896KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
0: 0
10: 1010
65: 1000001
127: 1111111
128: 10000000
249: 11111001
255: 11111111
https://ideone.com/VevXiX
language:
C++ (gcc 8.3)
created:
12 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!