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dmilicev

distance to the closest border.c

Nov 23rd, 2021
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  1. /*
  2.  
  3.     distance to the closest border.c
  4.  
  5.     Task:
  6.     https://www.facebook.com/groups/CPP.and.C.programming.for.Beginners/permalink/1792537050933194/
  7.  
  8.       n = 3
  9.  
  10.   1  1  1  1  1
  11.  
  12.   1  2  2  2  1
  13.  
  14.   1  2  3  2  1
  15.  
  16.   1  2  2  2  1
  17.  
  18.   1  1  1  1  1
  19.  
  20.     You can find all my C programs at Dragan Milicev's pastebin:
  21.  
  22.     https://pastebin.com/u/dmilicev
  23.  
  24. */
  25.  
  26. #include <stdio.h>
  27.  
  28. // Returns smallest of four numbers dl, dr, dt, db
  29. int min_of_4_numbers( int dl, int dr, int dt, int db){
  30.     int min = dl;
  31.  
  32.     if( min>dr ) min=dr;
  33.     if( min>dt ) min=dt;
  34.     if( min>db ) min=db;
  35.  
  36.     return min;
  37. }
  38.  
  39. // Numbers in pattern are the distance to the closest border.
  40. // There are the distance to the left dl, right dr, top dt and bottom db border.
  41. void number_pattern(int n){
  42.     int raw, col, d;
  43.     // The distance to the left, right, top and bottom border:
  44.     int dl, dr, dt, db;
  45.  
  46.     printf("\n      n = %d \n\n\n",n);
  47.  
  48.     for( raw=0; raw<2*n-1; raw++){
  49.         for( col=0; col<2*n-1; col++){
  50.             // The distance to the left, right, top and bottom border:
  51.             dl = col;
  52.             dr = 2*n-1 - (col+1);
  53.             dt = raw;
  54.             db = 2*n-1 - (raw+1);
  55.  
  56.             d = min_of_4_numbers(dl, dr, dt, db);   // The distance to the closest border
  57.             printf("%3d", d+1);                     // Print according number
  58.         }
  59.         printf("\n\n");                             // new raw
  60.     }
  61. }
  62.  
  63. int main(void){
  64.  
  65.     number_pattern(3);
  66.  
  67.     printf("\n\n");
  68.  
  69.     number_pattern(5);
  70.  
  71.     printf("\n\n");
  72.  
  73.     return 0;
  74.  
  75. } // main()
  76.  
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