Help me I'm noob

Hello, I'm noob (sorry bad english).

I come from javascript.

I need help.

Here is my code:

```

#include <stdio.h>

int debug_log(int n){

printf("%d\n", n);

}

int main(){

int i = 0;

while (i < 1000000){

debug_log(i);

i = i + 2;

}

}

```

I started by adding 1 to i every loop time, but it was slow. It was run for 119 seconds.

Then I decided to add 2 for more performance (optimization trick I learned) and it was run for 62 seconds.

The problem: it was faster (that is what I wanted) but now the log don't work well anymore. Now it shows more numbers. Is it because my computer's ram is stuck on first number or do I need to cear the cache before adding 2? I found no stack overflow subject on it. Do you also had this problem before? I'm on Windows 11. I'm scared I will break the compiler forever if I keep doing it.

Please help.