for and while HELP

[mnmustafa]

hiz, well i have a question regarding to for and while loop
i want to create such a triangle with "*"
*
* *
* * *
* * * * (its not right angle triangle, its equilateral triangle)

and 2nd thing, what if i want the USER to put the line numbers (upto 30)

Thnx
MnMustafa

[mnmustafa]

||||||*
||||*||*
||*||*||*
*||*||*||*

like this but without "|"

[Salem]

Read this http://www.daniweb.com/forums/announcement8-2.html

Make an effort.

Read this http://www.daniweb.com/forums/announcement8-3.html
and post your attempt.

[mnmustafa]

well thnx for those articles, but this isnt my homework or something, i m trying to do this since 2 days, i am new, so ofcourse i need some help. well here is the program i wrote which has 7 errors

# include <iostream>
using namespace std;

int printStars (int lines,int stars,int space);

int main ()
{
	printStars(lines, stars, space);
	return 0;
}

int printStars (int lines,int stars,int space)
{
	int lines, stars, space;

	for (lines=1; lines<=4; lines++)
	{
		for (space= 4; space >=0; space--)
		{
			cout<<" ";
			while (space=0)
			{
			for (stars=1; stars<=lines; stars++)
			}
			
			{
				cout<<"* ";
			}
			
		}
	cout<<endl;
	}
			

}

thnx

[c++noobie]

The first thing you need to do is get the number of lines to print, using cin. First, create a variable to hold the number of lines, then read it in from the user.

An example would be

int count;
cout << "What is the count?";
cin >> count;

[mnmustafa]

well sir, actually the CIN is 2nd part of my question!! :) i just want to write a program if i want to create 4 lined equilateral triangle..

[c++noobie]

Use for loops to print the stars, the spaces, etc. The standard for loop structure is one of the following two

for( int i = 0; i < numberOfTimes; i++ )
for( int i = 1; i <= numberOfTimes; i++ )

for loop number of lines
{
for loop spaces
{
print space
}
for loop stars
{
print star, print space
}
print newline}}

Edit:
BTW, the number of spaces to print is equal to the TotalNumberOfLines - CurrentLineNumber
The number of stars to print is equal to the CurrentLineNumber

[Murtan]

Ok so lets 'draw' one by hand and then figure out how to get the computer to do what we did.

(I'm going to use '.' instead of ' ' so you can see them.)

Ok so in my head, I start with the base of the triange as that determines how big it will be:

*.*.*.*

Then I just add the lines above it:

...*
..*.*
.*.*.*
*.*.*.*

Is that what you wanted?

So, for a 4 row triangle, the first row must be indented 3 spaces, the next 2 spaces, the next 1 space and the last line isn't indented at all.

The first line has 1 star, the second 2 stars seperated by a space, the third 3 stars with spaces and the last 4 stars with spaces.

Do you see a pattern here that you might be able to exploit?

[mnmustafa]

thnx people

[kbshibukumar]

while (space=0)

Is it something you really mean? Shouldn't it be ==?

http://cppkid.wordpress.com