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  1. #include <iostream>
  2.  
  3. const std::size_t HEIGHT = 10;
  4. const std::size_t WIDTH = 10;
  5.  
  6. char graphics[WIDTH/8][HEIGHT];
  7.  
  8. inline void set_bit(std::size_t x, std::size_t y)
  9. {
  10.     graphics[(x) / 8][y] |= (0x80 >> ((x) % 8));
  11. }
  12.  
  13. void print_screen(void)
  14. {
  15.     for (int y = 0; y < HEIGHT; y++)
  16.     {
  17.         for (int x = 0; x < WIDTH/8+1; x++)
  18.         {
  19.             for (int i = 0x80; i != 0; i = (i >> 1))
  20.             {
  21.                 if ((graphics[x][y] & i) != 0)
  22.                     std::cout << "*";
  23.                 else
  24.                     std::cout << " ";
  25.             }
  26.         }
  27.             std::cout<<std::endl;
  28.     }
  29. }
  30.  
  31. int main()
  32. {
  33.     for(int x = 0; x < WIDTH; x++)
  34.     {
  35.         for(int y = 0; y < HEIGHT; y++)
  36.         {
  37.             if(x == 0 || y == 0 || x == WIDTH-1 || y == HEIGHT-1)
  38.                 set_bit(x,y);
  39.         }
  40.     }
  41.     print_screen();
  42.     return 0;
  43. }
Success #stdin #stdout 0s 3296KB
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stdin
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Standard input is empty
stdout
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**********      
*        *      
*        *      
*        *      
*        *      
*        *      
*        *      
*        *      
*        *      
**********
https://ideone.com/mEaziU
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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