#include <stdio.h>
int main()
{
int i,n, j, k=0;
printf("Enter number of rows: ");
scanf("%d",&n);
for(i=1; i<=n; ++i, k=0)
{
for(j=1; j<=n-i; ++j)
{
printf(" ");
}
while(k != 2*i-1)
{
printf("* ");
++k;
}
printf("\n");
}
return 0;
}
Output