#include /* * This program creates a Quadrilateral with the base and height that the user choices. Set base and height only in the imput. */ using namespace std; class Polygon { protected : int base; int height; bool **figure; public : Polygon ( int base, int height ) : base ( base ), height ( height ) { figure = new bool* [height]; for ( int i = 0; i < height; i++ ) { figure[i] = new bool [base]; } } ~Polygon () { for ( int i = 0; i < height; i++ ) { delete [] figure [i]; } delete [] figure; } void setBase ( int base ) { this->base = base; } void setHeight ( int height ) { this->height = height; } int getBase () const { return base; } int getHeight () const { return height; } void drawPolygon () const { for ( int i = 0; i < height; i++ ) { for ( int j = 0; j < base; j++ ) { if ( figure [i][j] ) { cout << "* "; } else { cout << " "; } } cout << endl; } } }; class Quadrilateral : public Polygon { public : Quadrilateral ( int base, int height ) : Polygon ( base, height) { createQuadrilateral (); } void createQuadrilateral () { for ( int i = 0; i < height; i++ ) { for ( int j = 0; j < base; j++ ) { figure [i][j] = false; if ( i == 0 || ( i + 1 ) == height ) { figure [i][j] = true; } if ( j == 0 || ( j + 1 ) == base ) { figure [i][j] = true; } } } } }; int main() { int base, height = 0; cin >> base; cin >> height; if ( base == 0 || height == 0 ) cout << "Set base and height in this order in the imput to create the polygon." << endl; Quadrilateral figure1 ( base, height ); figure1.drawPolygon (); return 0; }

polygonDrawing