Prefix & Postfix usage in C++

prefixPostfix.cpp

#include <iostream>
using namespace std;

int main() {
    int num0 = 100; // num0=100 num1=null
    cout << "Num 0 = " << num0 << endl;

    int num1 = num0++; // num0=101 num1=100
    cout << "Num 0 = " << num0 << " Num 1 = " << num1 << endl;

    num1 = ++num0; // num0=102 num1=102
    cout << "Num 0 = " << num0 << " Num 1 = " << num1 << endl;

    num1 = num0--; // num0=101 num1=102
    cout << "Num 0 = " << num0 << " Num 1 = " << num1 << endl;

    num1 = --num0; // num0=100 num1=100
    cout << "Num 0 = " << num0 << " Num 1 = " << num1 << endl;

    return 0;
}

/*
 * OUTPUT:
 * Num 0 = 100
 * Num 0 = 101 Num 1 = 100
 * Num 0 = 102 Num 1 = 102
 * Num 0 = 101 Num 1 = 102
 * Num 0 = 100 Num 1 = 100
 */