what would happen if i put "num = num -1;" in this cycle

Question

int num = 1;
while (num < 6) {
cout << "Number: " << num << endl;
num = num + 1;
}

Answer 1

Congratulations! You just have created an infinite loop! Since your statement (num < 6) ALWAYS will be true, the program will print infinite numbers. I don't recommend doing that, by the way...