View Code of Problem 53

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