CS 10 SI Classroom Session 2 - Expression Examples

bad_input.txt

12
0

expression_master.cpp

#include <iostream>

using namespace std;

int main() {
  // Initialize multiple integer variables on same line.
  // Why would I initializing the rightOperand with 1? What am I anticipating?
  int leftOperand = 0, rightOperand = 1;

  // *Prefer making intermediate variables that store meaningful values instead
  // of doing computation in cout statements.
  int sum = 0;
  int difference = 0;
  int product = 0;
  int quotient = 0;
  int remainder = 0;

  // Explain what this software does.
  cout << "Welcome to C++-ExpressionMaster" << endl
       << "With this software, you can compute many mathematical expressions"
          "with the click of a button!" << endl << endl;

  cout << "Currently, this software supports the following operations with" 
          " two integers:" << endl
       << "\tAddition: I.E. a + b" << endl
       << "\tSubtraction: I.E. a - b" << endl
       << "\tMultiplication: I.E. a * b" << endl
       << "\tQuotient: I.E. a / b" << endl 
       << "\tRemainder: I.E. The remainder of a/b" << endl << endl;

  // Prompt user to fill in these variables.
  cout << "Enter in the left operand for these calculations: ";
  cin >> leftOperand;

  cout << "Enter in the right operand for these calculations: ";
  cin >> rightOperand;

  // Now, before outputting the results, store evaluated expressions
  // in intermediate variables.
  sum = leftOperand + rightOperand;
  difference = leftOperand - rightOperand;
  product = leftOperand * rightOperand;
  quotient = leftOperand / rightOperand;
	remainder = leftOperand % rightOperand;

  // Remind user about the numbers they entered.
  cout << endl;
  cout << "The two integers you entered, in order, are "
       << leftOperand  << " and " << rightOperand << endl;

  // Output computed values.
  cout << "Their sum is " << sum << endl
       << "Their difference is " << difference << endl
       << "Their product is " << product << endl
       << "The quotient is " << quotient << endl
       << "The remainder is " << remainder << endl;

  return 0;
}

good_input.txt

42
13

overflow.txt

99999999999999999999999