C++ Basic Arithmetic

#include <iostream>

using namespace std;

int main()
{
    //+ - * / %
    cout << 3 * 3 << endl;

    cout << 10 / 3 << endl;
    cout << 10 % 3 << endl;

    cout << 7 / 2 << endl;
    cout << 7 % 2 << endl;

    //+= -= *= /= %=
    int no = 5;

    no += 10;
    no %= 2;

    //++var var++ --var var--
    cout << no++ << endl;
    cout << --no << endl;
    cout << no-- << endl;
    cout << no << endl;

    //precedence/DMAS
    //use of round brackets
    cout << 10 / 4 * 2 - 10 + 15 / 4 << endl;
    cout << 10 / (((6 - 3) * 10) + ((20 - 10) % 4));

    //type casting
    cout < 3/2.0 << endl;

    int no2 = 7;
    cout << 5/(float)no2 << endl;

    int pause;
    cin >> pause;

    return 0;
}