Question

Q1. Write a C++ program that reads two integers a, and, b on the keyboard to calculate:

U = (a + b)2 and V = (a - b)2

Q2. Write a C++ program to read a sequence of positive integers and to display the largest integer of that sequence. Use a negative integer to indicate the end of the data entry.

Answer 1

#include <iostream>
using namespace std; 
int main() { 
   int a, b, u, v;
   
   cout<<"Enter integer value for a: ";
   cin>>a;
   
   cout<<"Enter integer value for b: ";
   cin>>b;
   
   u = (a+b)*(a+b);
   v = (a-b)*(a-b);
   
   cout<<"U = "<<u<<endl;
   cout<<"V = "<<v<<endl;
   
   return 0; 
}

/////////////////////////////////////////////////////////////////////////////////////

#include <iostream>
using namespace std; 
int main() { 
   double maxNum;
   double x;
   
   cout<<"Enter negative number or zero to stop\n\n";
   
   cout<<"Enter a number: ";
   cin>>x;
   maxNum = x;
   
   while(x > 0){
      cout<<"Enter a number: ";
      cin>>x;
      
      if(x > maxNum){
         maxNum = x;
      }
   }
   
   cout<<"Largest integer: "<<maxNum<<".\n";
   return 0; 
}