Original subtitles

Welcome back.

And in this video, we are going to solve the challenge of printing out in isosceles triangle using

asterisks.

So an asterisk is just like a character that you can print on your screen, just like you printed out

the letter or characters of Hello World Message.

So similarly can be done here.

So to solve that in the first way, we can just use three print of commands, right.

So on the first line to print one asterisk, we will use printer and print out one asterisk.

And also add a backslash.

And at the end, on the second line, we will print three of them.

Right.

One, two, three.

Add a backslash and add the same for the third line.

Right.

We're using multiple print F commands.

So one, two, three, four, five.

And the backslash.

And there you go.

So now if we are to build and run this program, we will see these triangular right here.

And we can see that it's not exactly what we wanted.

Right.

Although that's a triangle.

We should reorder there with a little bit.

And that's why the main thing in this exercise is to notice how how we can use correctly these lines,

spacing between these asterisks and how we can use the backslash and the new lines here correctly.

So, first of all, to place the asterisk.

And the first line at the center of the triangle, we will just add two line spaces here and before

the asterisk and two lines business afterwards.

So there will be a total of five characters just like we have at the base.

Then we would like to move the three asterisks here.

OK.

And the second line to the Medo and we can do that by just adding one line space before and one line

space after.

And you can see that right now it starts to make some form the actual form that we wanted it to be.

So on the third line will live it as sees no line spaces, no line spaces actually are needed here.

We already got our five characters at the base, as it should be.

And now let's run it.

Guys, let's build and run.

And there you go.

And isosceles triangle of asterisk, exactly as requested.

Good job.

So the biggest trick here in these exercises to properly use these lines, bases and the new line as

we explain here.

And now, once you've got some experience with that, let's try printing goal of this, try and going

just one print off-line.

So, first of all, let's clean all of this.

Right.

And now we will start just like with the previous example in 3-D.

The first line using these two spaces before and after these Suan asterisks.

So print here, add two spaces, add one asterisk and add two other spaces.

Now that center, then let's add the backslash and to go to the next line.

Then instead of using another print of command, we'll just add the second line because we will already

be on the second line.

Thanks to these Becs Lashan.

Right.

And here we'll use just one space line and then the three asterisks.

So once baseline three asterisk, another space line and a backslash and at the end to go one line down.

Now we can print five of them at the base at the last line and add the last backslash Lashan.

And of course, a semicolon at the end.

And one thing I forgot to do is to return zero.

And hopefully we did everything right.

Let's try to build and run it and very go.

It works like charm.

Basically, it's just the same as we've seen previously when we use their three printf lines.

OK, the three printf commands jazz that right now we've used it in one print command.

So that's a good practice for these radio guys and for these exercises.

And one less thing for this video.

Before we finish this exercise, I would like to ask you a question to think about and try to solve

it on your own.

We've used the different number of line spaces before this sequence of fast rescreen every line.

And also, we've used the same number of spaces of line spaces right after the sequence at every line.

All right.

So we can see it right here.

And there are spaces are right after the asterisk as well as here.

So the question is, do we actually need it?

Do we need these spaces right after we've written a sequence of asterisks?

Or maybe we can simply put a backslash in right after.

And we'll be good.