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  1. #include <stdio.h>
  2.  
  3. #define WIDTH 40
  4. #define HEIGHT 20
  5.  
  6. void putpixel(char screen[HEIGHT][WIDTH], int x, int y, char c) {
  7.     if(x >= 0 && x < WIDTH && y >= 0 && y < HEIGHT)
  8.         screen[y][x] = c;
  9. }
  10.  
  11. int main() {
  12.     char screen[HEIGHT][WIDTH];
  13.     // Initialize screen with spaces
  14.     for(int i=0; i<HEIGHT; i++) {
  15.         for(int j=0; j<WIDTH; j++) {
  16.             screen[i][j] = ' ';
  17.         }
  18.     }
  19.  
  20.     // Plot some "pixels"
  21.     putpixel(screen, 10, 5, '*');
  22.     putpixel(screen, 15, 8, '*');
  23.     putpixel(screen, 20, 10, '*');
  24.     putpixel(screen, 25, 12, '*');
  25.     putpixel(screen, 30, 15, '*');
  26.  
  27.     // Print the screen
  28.     for(int i=0; i<HEIGHT; i++) {
  29.         for(int j=0; j<WIDTH; j++) {
  30.             printf("%c", screen[i][j]);
  31.         }
  32.         printf("\n");
  33.     }
  34.  
  35.     return 0;
  36. }
  37.  
Success #stdin #stdout 0.01s 5324KB
comments (?)
stdin 
Standard input is empty
stdout 
                                        
                                        
                                        
                                        
                                        
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https://ideone.com/Ok3LXX
language:
C99 (gcc 8.3)
created:
2 days ago
visibility:
public

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