for and while HELP
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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
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
Last edited by mnmustafa : Jan 7th, 2009 at 12:49 am.
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.
Make an effort.
Read this http://www.daniweb.com/forums/announcement8-3.html
and post your attempt.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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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
thnx
# 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
Last edited by mnmustafa : Jan 7th, 2009 at 1:06 am.
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
An example would be
c++ Syntax (Toggle Plain Text)
Last edited by c++noobie : Jan 7th, 2009 at 1:09 am.
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..
i just want to write a program if i want to create 4 lined equilateral triangle.. 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
{
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
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
Last edited by c++noobie : Jan 7th, 2009 at 2:00 am.
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?
(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?
Last edited by kbshibukumar : Jan 7th, 2009 at 9:15 am.
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