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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.  
  5.     int n;
  6.     scanf("%d", &n);  // 輸入層數
  7.  
  8.     // 上半部
  9.     for(int i = 0; i < n; i++) {
  10.  
  11.         for(int j = 0; j < n - i - 1; j++) {
  12.             printf(" ");
  13.         }
  14.  
  15.         for(int k = 0; k < 2 * i + 1; k++) {
  16.             printf("*");
  17.         }
  18.  
  19.         printf("\n");
  20.     }
  21.  
  22.     // 下半部
  23.     for(int i = 0; i < n - 1; i++) {
  24.  
  25.         for(int j = 0; j < i + 1; j++) {
  26.             printf(" ");
  27.         }
  28.  
  29.         for(int k = 0; k < 2 * (n - i - 1) - 1; k++) {
  30.             printf("*");
  31.         }
  32.  
  33.         printf("\n");
  34.     }
  35.  
  36.     return 0;
  37. }
  38.  
Success #stdin #stdout 0s 5324KB
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stdout
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Standard output is empty
https://ideone.com/JqXF4n
language:
C (gcc 8.3)
created:
4 hours ago
visibility:
public

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