#include<iostream>

#include<conio.h>

using namespace std;

int main()

{

int d,r,c,a;

cout<<"nhap chieu cao dai: ";

cin>>d;

cout<<"nhap chieu cao rong: ";

cin>>r;

for(c=1;c<=r;c++)

{

for(a=1;a<=d;a++)

{ if(a==1||a==d||c==1||c==r)

cout<<"*";

else

cout<<" ";

}

cout<<"

";

}

getch();

}

#include<iostream>

#include<conio.h>

#define a 30

using namespace std;

int main()

{

int d,h,c;

cout<<"nhap chieu cao h: ";

cin>>h;

for(d=1;d<=h;d++)

{

for(c=1;c<=(a-d);c++)

cout<<" ";

for(c=1;c<=2*d-1;c++)

cout<<"*";

cout<<"

";

}

getch();