View Code of Problem 57

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