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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int N;
  5.     scanf("%d", &N);
  6.  
  7.     if (N <= 0) {
  8.         printf("\n");
  9.         return 1;
  10.     }
  11.  
  12.     for (int i = 0; i < N / 2; i++) {
  13.         for (int j = 0; j < i; j++) {
  14.             printf(" ");
  15.         }
  16.         for (int k = 0; k < N - 2 * i; k++) {
  17.             printf("*");
  18.         }
  19.         printf("\n");
  20.     }
  21.  
  22.     for (int i = N / 2; i >= 0; i--) {
  23.         for (int j = 0; j < i; j++) {
  24.             printf(" ");
  25.         }
  26.         for (int k = 0; k < N - 2 * i; k++) {
  27.             printf("*");
  28.         }
  29.         printf("\n");
  30.     }
  31.  
  32.     return 0;
  33. }
  34.  
  35.  
Success #stdin #stdout 0s 5276KB
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stdin
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7
stdout
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*******
 *****
  ***
   *
  ***
 *****
*******
https://ideone.com/fEfXjy
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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