write program to generate following pattern

Program:

#include<stdio.h>
int main()
{
    int n, r, c, s;

    printf("Enter number of rows: ");
    scanf("%d",&n);

    for(r=1;r<=n;r++)
    {
      for(s=1;s<=n-r;s++) printf(" ");
      for(c=1;c<=(2*r-1);c++) printf("*");

      printf("\n");
    }

    return 0;
}

Output:

  Enter number of rows: 3
  *
 ***
*****