View Code of Problem 57

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