View Code of Problem 57

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