Question

Find two syntax errors in the following program:

#include <iostream>

using namespace std;

int area(int length, int width = 0);

int main()
{
int length, width;

// for rectangle use both arguments
cout << "Enter length and width of a rectangle" << endl;
cin >> length >> width;

cout << "The area is " << area(length, width) << endl;

// for square, only need first argument
cout << "Enter side of a square" << endl;
cin >> length;

cout << "The area is " << area(length) << endl;

return 0;
}

int area(int length, int width = 0);
{
if ( width == 0 )
return length * length;

return length * width;
}

Answer 1

#include <iostream>

using namespace std;

int area(int length, int width=0);

int main()
{
int length, width;

// for rectangle use both arguments
cout << "Enter length and width of a rectangle" << endl;
cin >> length >> width;

cout << "The area is " << area(length, width) << endl;

// for square, only need first argument
cout << "Enter side of a square" << endl;
cin >> length;

cout << "The area is " << area(length) << endl;

return 0;
}

int area(int length, int width)
{
if ( width == 0 )
return length * length;

return length * width;
}