Area using Default Arguments

Write a Program to find Area of a Square & Rectangle using Default Arguments.

#include<iostream> using namespace std; int sqr(int x=10); int rect(int y=10,int z=20); int main() { int ch; cout<<"1.Area of square\n2.Area of rectangle\nEnter choice: "; cin>>ch; switch(ch) { case 1:cout<<"Area= "<<sqr()<<endl; break; case 2:cout<<"Area= "<<rect()<<endl; break; default:cout<<"Wrong choice."; } return 0; } int sqr(int a) { return a*a; } int rect(int a,int b) { return a*b; }