PROGRA30-05-2014(2)

#include <iostream>
#include <conio.h>
using namespace std;

void dibuja(int x, int y){
	int k;
	for(k=1;k<=y;k++){cout<<" ";}
	for(k=1;k<=2*y-1;k++){
		cout<<"*";
		if(k<2*y-1){cout<<" ";}
	}
}

void dibuja2(int x, int y){
	int k;
	for(k=1;k<=y;k++){cout<<" ";}
	for(k=1;k<=2*y-1;k++){
		cout<<"*";
		if(k<2*y-1){cout<<" ";}
	}
}
int main(){
	int a,b;
	cin>>a;
	for(b=0;b<=a;b++){
		cout<<endl;
		dibuja(a,b);dibuja2(a,b);
		cout<<endl;}
	for(b=a-1;b>=1;b--){
		cout<<endl;
		dibuja(a,b);dibuja2(a,b);
		cout<<endl;
	}
	_getch();
}