#include <iostream>
#include <cstdlib>
using namespace std;
int main(){ int ch; int a, b; float res; cout<<"Enter two numbers : "; cin>>a>>b; cout<<"\nEnter operation you want to perform : "<<endl; cout<<"\t1. Addition..."<<endl; cout<<"\t2. Subtraction..."<<endl; cout<<"\t3. Multiplication..."<<endl; cout<<"\t4. Division..."<<endl; cout<<"\t5. Exit..."<<endl; cout<<"Enter your choice!!!"<<endl; cin>>ch; switch(ch) { case 1: res = a+b; break; case 2: res = a-b; break; case 3: res = a*b; break; case 4: res = (float)a/b; break; case 5: cout<<"Thanks for stopping by!!!"; exit(0); } cout<<"\n\nResult is :"<<res<<" !!!"<<endl; return 0;}
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