The following code does display an x however, how can I get the slash to be the same on both sides?

Question

1.00/5 (1 vote)

See more:

The user decides on the stem size for the X (i.e., how long one "leg" of the X is). Use a validation loop to ensure their input is between 1 and 10 (inclusive).  Use nested loops to make the X appear on the screen.

For example, if the user decides on having a stem size of 3 for the X, your loops need to produce the following picture:

\    /
 \  /
  \/
  /\
 /  \
/    \

What I have tried:

int stemSize = 0;
			cout << "Enter the stem size for the X: ";
			cin >> stemSize;
			while (!(stemSize >= 1 && stemSize <= 10))
			{
				cout << "Enter the stem size for the X: ";
				cin >> stemSize;
			}
			for (int row = 1; row <= stemSize; row++){
				for (int col = 1; col <= stemSize; col++){
					if(row == col || col ==(stemSize +1) - row)
						cout << "\\";
					else
						cout << " ";
				}
				cout << endl;
			}

Posted 7-Oct-22 9:14am

gkau

Updated 7-Oct-22 13:11pm

OriginalGriff

v3

Add a Solution

Comments

Richard MacCutchan 7-Oct-22 15:37pm

The first n rows need \/, and the last rows need /\. So you need two loops to print the relevant characters and their spaces.

gkau 7-Oct-22 15:42pm

For the last rows loop, would it be the same, except changing the output?

Richard MacCutchan 7-Oct-22 15:45pm

That is what I stated in my comment.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2022-10-07T10:13:00

Think about what you are trying to do, and look at what patterns you have to work with.
There are two patterns:
1) The top half and the bottom half are mirrored.
2) Each line is mirrored around it's centre.

So start by writing a function that prints a line given it's total length (same for all), the line number (which decides how many spaces to print each time), the start and end characters.
In your example:

Line 0:   \    /    0 space, '\', 4 space, '/', 0 space
     1:    \  /     1 space, '\', 2 space, '/', 1 space
     2:     \/      2 space, '\', 0 space, '/', 2 space
     3:     /\      2 space, '/', 0 space, '\', 2 space
     4:    /  \     1 space, '/', 2 space, '\', 1 space
     5:   /    \    0 space, '/', 4 space, '\', 0 space

Given that, it's pretty easy to see that there are sequences here that can be exploited to print using two loops that call the same method: one going from 0 to N-1, and one going from N-1 to 0

Needless to say, the "trailing spaces" don't really need to be printed at all.

Think about it, and if you are having problems getting started at all, then this may help: How to Write Code to Solve a Problem, A Beginner's Guide[^]

merano99 · Answer 2 · 2022-10-07T13:11:00

The basics given by OriginalGriff how to determine the positions as well as the hint that there are mirrored outputs helps already. Here is a suggestion how to implement it:

C++

char legchar[2] = { '\\', '/' };
int  step = 1;
bool lpart = false;			// draw lower part
for (int row = 0; row >= 0; row += step) {

// TODO: draw spaces and lines

}

When switching for the lower part, you could mirror the characters like this:

C++

swap(legchar[0], legchar[1]);

The following code does display an x however, how can I get the slash to be the same on both sides?

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0