All language subtitles for 18. Exercise 3 - Writing numbers and their powers to a file[Solution]

So let us start the solution, shall we?

So let's create a pointer, F.P., a pointer to a file.

Let's open it up and let's make sure that it was opened up successfully.

Now, let's use here some let's use some loop, some for a loop.

Let's create additional variable AI and we'll use it like this.

So for I equals zero, the one in this case.

Right.

Because we know zero in the power of zero.

What does it mean.

Well what, what will it be.

So I equals to one eye is less than what did we want.

We want up until 10.

So let's say equals small less than or equal to ten and then we will say a plus plus one every duration.

And now what we are going to do.

We need a way to take the information stored inside these variable eye and put it inside the file,

and also we need to put the information from I multiplied by so we could weigh a good function would

be in this case is the print F function file, print file.

What does he expect to receive?

It expects to receive a pointer to file.

Let's give it F.P. and then what should we give it.

We should give it a second is the Charr format, so what will it be?

What are the placeholders in this case we should use here person the unique.

OK, I just want to show you a simple example of just using the percentage deal without the powers themselves,

so let's use it like this.

So we will write to the file all the numbers, one, two, three, four or five, six, seven, up until

we reach some value.

So let's wait up until we reach them.

So let's say the coalition run it and let's hope that everything will work.

Where is the file?

Come on.

Come on, come on.

Here it is.

Here is the file.

One, two, three, four, five, six, seven, eight, 10, nine.

Eight, nine, ten.

Yeah, absolutely, so what we want now, these files to have is something like this one for nine and

so on.

So what should we do?

We should basically update the printer offline.

So instead of using just percentage D, we will use percentage D the number and then we will specify

a space and we will use another number specified by percentage.

That's it.

Here we will specify I multiplied by I which is.

Which is which is why do you think it is I it is the power of two or five, so let's run it and hopefully

everything will work smoothly so we can finish it up.

So one, one, two, four, three, nine four, six, five twenty five, six and so on.

So I think you've got the idea and if you would like to make like to expand it a little bit, very easy.

Just Adelaida know up until a hundred and there you go, you will have your file with all the values

of I and I square.

Awesome.

So, yeah, this is it for this video.

We used the printer function, specified the file pointer, specified some format specifications, including

placeholders specified I, I multiplied by AI and that's it.

So thank you guys for watching.

You're doing great.

And let's move on to the next video.