View Code of Problem 57

#include<stdio.h>
#include<string.h>
#include<math.h>
int main()
{
	int n;
	scanf("%d",&n);
	int i,j;
	int k=2*n-1;
	int a[k][k];
	for(i=0;i<n;i++)
	{
		int l=n-i-1;
		int m=k-2*l;
		int x=0;
		for(j=0;j<l+m;j++)
		{
			if(j<l)
				printf(" ");
			else if(j<n)
				printf("%d",++x);
			else
				printf("%d",--x);
			
		}
		printf("\n");
	}
	for(i=n;i<k;i++)
	{
		int l=i+1-n;
		int m=k-2*l;
		int x=0;
		for(j=0;j<l+m;j++)
		{
			if(j<l)
				printf(" ");
			else if(j<n)
				printf("%d",++x);
			else
				printf("%d",--x);
			
		}
		printf("\n");
	}
}

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