C++ code question 3

Question

What is the output of this code?
int p;
for (int a = 0; a < 1; a += 3){
p = a;
}
cout << p;
my answer is 3 but the right answer is 0.
It's really bewildering...🤔
waiting your wise idea ☺️

Answer 1

@Jayden the loop runs 1 time with i=0.
The order of for-loops is:
1. check condition
2. run code if condition is met
3. increment the running variable
-> repeat steps

In this code the loop starts with i=0, checks if i<1(step 1), runs the code (step 2), increments i by 3 (step 3), checks the condition (repeat -> step 1) and breaks the loop.

Answer 2

It's really a wise idea 👍

Answer 3

hi