Please explain this code?

Question

#include <iostream>
using namespace std;

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

return 0;
}

Answer 1

while loop is execute till value of num<6 so
num=1 so
1<6 true num=num+1 so num=1+1=2
2<6 true num=num+1 so num=2+1=3
3<6 true num=num+1 so num=3+1=4
4<6 true num=num+1 so num=4+1=5
5<6 true num=num+1 so num=5+1=6
num become 6 but it not goes in the loop because while loop condition false so number is print till 5
6<6 false loop break
so output become
number 1
number 2
number 3
number 4
number 5

Answer 2

thank you very much gawen steasy