View Code of Problem 53

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

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