View Code of Problem 57

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