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  1. #include <stdio.h>
  2. int main()
  3. {
  4.     int i, space, rows, k=0, count = 0, count1 = 0;
  5.  
  6.     printf("行数: ");
  7.     scanf("%d",&rows);
  8.  
  9.     for(i=1; i<=rows; ++i)
  10.     {
  11.         for(space=1; space <= rows-i; ++space)
  12.         {
  13.             printf("  ");
  14.             ++count;
  15.         }
  16.  
  17.         while(k != 2*i-1)
  18.         {
  19.             if (count <= rows-1)
  20.             {
  21.                 printf("%d ", i+k);
  22.                 ++count;
  23.             }
  24.             else
  25.             {
  26.                 ++count1;
  27.                 printf("%d ", (i+k-2*count1));
  28.             }
  29.             ++k;
  30.         }
  31.         count1 = count = k = 0;
  32.  
  33.         printf("\n");
  34.     }
  35.     return 0;
  36. }
Success #stdin #stdout 0s 10320KB
comments (?)
stdin
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5
stdout
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行数:         1 
      2 3 2 
    3 4 5 4 3 
  4 5 6 7 6 5 4 
5 6 7 8 9 8 7 6 5
https://ideone.com/sgGSvP
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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