View Code of Problem 53

#include<stdio.h>
#include<string.h>
int main(){
	int i,j,n;
	scanf("%d",&n);
	for (i=0;i<n;i++)
	{
		for (j=0;j<n-i-1;j++)
			printf(" ");
		for (j=0;j<1+2*i;j++)
			printf("*");
		printf("\n");
	}
	for (i=n;i<2*n-1;i++)
	{
		for (j=0;j<i-n+1;j++)
			printf(" ");
		for (j=0;j<2*(2*(n-1)-i)+1;j++)
			printf("*");
		printf("\n");
	}
	
	return 0;
}