Printf debugging

So, imagine you are playing with your toys and you want to make sure they are all where they are supposed to be. You can go through each toy and touch them to make sure they are there, right?

Well, when grown-ups work on computer programs, they want to make sure that the program is doing what it is supposed to be doing. One way they can check is by using something called printf debugging.

Printf is a command that a grown-up can add to the code to print out information about what the computer program is doing. Then, the grown-up can look at the printed information and see if it matches what they expect the program to do.

It's like checking to make sure all your toys are where they are supposed to be by touching them, but instead of using your hands, the grown-ups are using the computer to look at the information.

This way, if something doesn't match up with what the grown-up expects, they can figure out what needs to be fixed in the program. It helps them find mistakes and make sure the program works the way they want it to.