start code below



code 

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#include<iostream>

using namespace std;

void main()

{

       cout << "welcome to calculator" << endl;

       int a, b;

       char op;

       cout << "Enter first value" << endl;

       cin >> a;

 

       cout << "Enter second value" << endl;

       cin >> b;

 

       cout << "Enter Operation +, - , * , / , % " << endl;

       cin >> op;

 

       if (op == '+')

       {

       cout << a + b;

       }

       else if (op == '-')

       {

              cout << a - b;

 

       }

       else if (op == '*')

       {

              cout << a * b;

 

       }

       else if (op == '/')

       {

              cout << a / b;

 

       }

       else if (op == '%')

       {

              cout << a % b;

       }

       else

              cout << "error";

system("pause");

       

}

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