Ummm im trying to LEARN c++ but im stuck on a problem. how can i make a triangle look like this

* *
** **
*** ***
**** ****
***** *****
************
***** *****
**** ****
*** ***
** **
* *

using loops in c++? I've been trying to do it but i cant SEEM to get it. So help would be greatly appreciated. Like this? (This is what you typed, shown in monospaced font) There are actually 4 triangles in that figure.

Code: [Select]* *
** **
*** ***
**** ****
***** *****
************
***** *****
**** ****
*** ***
** **
* *
I am guessing not. You have not described the problem very precisely. Is it homework?

The continuous line in the middle has 12 asterisks so I will assume your pattern is meant to be 12 characters wide, and that you need to successively show 11 lines of text that consist of:

a number A of asterisks - a number S of spaces - the same number A of asterisks

If the display is 12 chars wide and you assume 1 character step in size

Then A - S - A will be:

1 asterisk 10 spaces 1 asterisk
2 asterisks 8 spaces 2 asterisks
3 asterisks 6 spaces 3 asterisks
4 asterisks 8 spaces 4 asterisks
5 asterisks 2 spaces 5 asterisks
6 asterisks 0 spaces 6 asterisks
5 asterisks 2 spaces 5 asterisks
4 asterisks 8 spaces 4 asterisks
3 asterisks 6 spaces 3 asterisks
2 asterisks 8 spaces 2 asterisks
1 asterisk 10 spaces 1 asterisk

Now all you have to do is think of an algorithm to generate that sequence of numbers or rather such a sequence for any given width of pattern. Study the figures and you will see a pattern. Then use writeln to do the lines.

the figure basically looks like the head of an axe. Two triangles point to point. it looks weird and i apologize for that. i know the code for it is suppose to be relativly short, so my 2 page long code DOESNT seem right.Pseudocode:

produce square figure (equal height & width)

H=height
W=width
W=H
for n=1 to (H/2) step 1 (
print n stars, print W - (2*n) spaces, print n stars
)

for n=( (H/2)-1) to 1 step -1 (
print n stars, print W - (2*n) spaces, print n stars
)
thank you, ill try to figure it out from here. My math cant be THAT bad.this is what i have


Code: [Select]#include <stdio.h>
#include <iostream>
#include <math.h>
#include <stdlib.h>
#include <windows.h>
#include <assert.h>
#include <ctype.h>
#include <float.h>
#include <limits.h>
#include <string.h>
#include <iostream.h>

void main(void)
{
int i;
int asterick1 = 0;
int asterick2 = 0;
int acounter1 = 1;
int acounter2 = 1;
int iscounter = i - 2;
int scounter = 0;
int spaces = i - 2;
int middlecounter = 0;
int middlecounter2 = 0;
int x = acounter1 + acounter2;

cout << "Please enter an INTEGER" << endl;
cin >> i;
cout << "*";

while ( x < i)
{
while (asterick1 <= acounter1)
{
cout << "*";
asterick1 = asterick1 + 1;
}
while (scounter <= spaces)
{
cout << " ";
scounter = scounter + 1;
}
while (asterick2 <= acounter2)
{
cout << "*";
asterick2 = asterick2 + 1;
}

acounter1 = acounter1 + 1;
acounter2 = acounter2 + 1;
spaces = spaces - 2;
cout<< endl;
}


while (middlecounter2 <= 2)
{
while (middlecounter <= i)
{
cout << "*";
}
cout << endl;
}
system ("PAUSE");
return 0;
}[/glow]

and it doesnt work.I am stuck on a similar problem. The outcome has to look like this. Can someone please help!
* ********** ********** *
** ********* ********* **
*** ******** ******** ***
**** ******* ******* ****
***** ****** ****** *****
****** ***** ***** ******
******* **** **** *******
******** *** *** ********
********* ** ** *********
********** * * **********use the methods described above, extending your solution to four triangles instead of 2.

Seriously- we aren't here to DO the homework for you, we're here to help- and I think all the information you need was provided in previously posted answers.

WE? I appreciate the help that I got from the previous posts. I was just looking for somewhere to start from.