Find Area and Perimeter

Find the area and perimeter of the rectangle. In this function, length and breadth are passed by integer and area and perimeter are passed by reference.

using namespace std;
void calRect(int len,int bre,int& ar,int& pm){
	ar = len*bre;
	pm = 2*(len+bre);
int main(){
	int l,b;
	int area,perimeter;
	cout<<"Enter length and breadth : "<<endl;
	cout<<"Length : ";
	cout<<"Breadth : ";
	cout<<"Area : "<<area<<endl;
	cout<<"Perimeter : "<<perimeter<<endl;
	return 0;
area and perimeter calculated using reference
area and perimeter calculated using reference

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