C++ Tutorial/Operators statements/modulus operator

Mod down by integer

<source lang="cpp">#include <iostream> using namespace std; int main() {

  cout << "How many pennies do you have? ";
  int pennies;
  cin >> pennies;
  
  cout << "How many nickels do you have? ";
  int nickels;
  cin >> nickels;
  cout << "How many dimes do you have? ";
  int dimes;
  cin >> dimes;
  cout << "How many quarters do you have? ";
  int quarters;
  cin >> quarters;
  int value = pennies + 5 * nickels + 10 * dimes 
     + 25 * quarters;
  int dollar = value / 100;
  int cents = value % 100;
  cout << "Total value = " << dollar << " dollar and "
     << cents << " cents\n";
  return 0;

}</source>

Modular operator

<source lang="cpp">#include <iostream> using namespace std; int main(void) {

  int num;
  cout << "Enter a whole number: ";
  cin >> num;
  if ( num % 2 == 0 )
     cout << "The number is even" << endl;
  return 0;

}</source>

Read int type variables and calculate mod value

<source lang="cpp">#include <iostream>

1. include <string>

using namespace std; int main(void) {

  int total, dollars, quarters, dimes, nickels, leftover;
  cout << "Enter number of pennies to make change for: ";
  cin >> total;
  dollars = total / 100;
  leftover = total % 100;
  quarters = leftover / 25;
  leftover %= 25;
  dimes = leftover / 10;
  leftover %= 10;
  nickels = leftover / 5;
  leftover %= 5;
  cout << "Dollars: " << dollars << endl;
  cout << "Quarters: " << quarters << endl;
  cout << "Dimes: " << dimes << endl;
  cout << "Nickels: " << nickels << endl;
  cout << "Pennies: " << leftover << endl;
  return 0;

}</source>

The modulus operator.

<source lang="cpp">#include <iostream> using namespace std;

int main() {

 int x, y; 

 x = 10; 
 y = 3; 
 cout << x << " / " << y << " is " << x / y <<  
      " with a remainder of " << x  y << "\n";  

 x = 1; 
 y = 2; 
 cout << x << " / " << y << " is " << x / y << "\n" << 
         x << "  y;  

 return 0; 

}</source>

10 / 3 is 3 with a remainder of 1
1 / 2 is 0
1 % 2 is 1"