View Code of Problem 53

#include <stdio.h>
#include <string.h>
int main(){
	int n;
	while(scanf("%d",&n)!=EOF){
		int i,j;
		for(i=1;i<=n;i++){
			for(j=1;j<=n-i;j++)  printf(" ");
			for(j=1;j<=2*i-1;j++)  printf("*");
			printf("\n");
		}
		for(i=n-1;i>=1;i--){
			for(j=1;j<=n-i;j++)  printf(" ");
			for(j=1;j<=2*i-1;j++)  printf("*");
			printf("\n");
		}
	}
	return 0;
}