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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int n;
  5.     printf("Enter the number of rows: \n");
  6.     scanf("%d",&n);
  7.  
  8.     int nst=n-1;
  9.     int nsp=1;
  10.  
  11.       for(int r=1;r<=n;r++)
  12.          printf("*");
  13.       printf("\n");
  14.  
  15.     for(int i=1;i<=n;i++){
  16.  
  17.       for(int j=1;j<=nst;j++)
  18.         printf("*");
  19.  
  20.        for(int k=1;k<=nsp;k++)
  21.         printf(" ");
  22.  
  23.       for(int j=1;j<=nst;j++)
  24.         printf("*");
  25.  
  26.          nst--;
  27.          nsp+=2;
  28.  
  29.     printf("\n");
  30.  
  31.     }
  32.  
  33. 	return 0;
  34. }
  35.  
Success #stdin #stdout 0.01s 5308KB
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stdin
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5
stdout
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Enter the number of rows: 
*****
**** ****
***   ***
**     **
*       *
https://ideone.com/dNRNoY
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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