Pyramid

[hunterb24]

#include <iostream>

int main()
{
int input_rows, rows, output_spaces;

std::cout << "Enter the number of rows: ";
std::cin >> input_rows;

output_spaces = input_rows;

for (rows=1; rows<=input_rows; rows++)
{
    for (int space=1; space<= output_spaces; space++)
    {
        std::cout << " ";
     
        output_spaces--;
        
        for (space=1;space<= 2*rows -1; space++)
        {
            std::cout << "*" << std::endl;
        }
       
    }    
    
    
}


return 0;
}

This should print out
*
* *
* * *
it should print out one row for how many ever the user inputs.

What is wrong?

[SwatSid]

hi hunterb24! actually u shud have the for loop like this...

for(int i=1;i<=n;i++) //i decides the number of lines and n is the input from the user
{
  for(int j=1;j<=i;j++)
  cout<<"* ";
  cout<<endl;
}

if u include the above loop, with changes ofcourse according to ur program, u wud get this O/P(depends upon value of n according to my program. the below O/p is for n=4):

*
* *
* * *
* * * *

[SwatSid]

hey man... first take out that

std::cout << " ";

statement as its not required to give spaces with loops separately... include a space in

std::cout << "*" << std::endl;

by giving a space bar aftr the *..

for (space=1;space<= 2*rows -1; space++)

- change it with space=2 and space<=2*rows... u wud get a O/P like this :

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

u can do changes and modify to ur use!

[hunterb24]

how can i align the whole triangle to the center to create an equilateral triangle?

such as :
*
* * *
* * * * *

except centered

[hunterb24]

i am trying to take this slow and go from an easy program to a slightly more difficult one, as my final product will be:

   
         1
      2 1 2
   3 2 1 2 3
4 3 2 1 2 3 4

which needs to be centered too with as many rows as the user specifies.

Thanks so much for your all your help.

[SwatSid]

ok so u want it to be centers right? its actually very simple... i expect u wud know about the setw() function. no big changes to our program, just one line to be added to make it centred! first #include <iomanip.h>. actually i insist u not to use THREE for loops for this pattern printing... leads to a lot of confusion... so just try to chnge ur program like how i posted, the very first post of mine... have the control variables in terms of i and j... that reduces time of typing the variable names and doesnt have any special characters or confusion between uppercase or lowercase(hope u understood what i blabbered here :P )... well am gonna post my code, try changing the control variables to ur program or BETTER u follow the method i do cause its a lot more easier than ur way of thinking. its too simple just add very little things...

for(int i=1,x=n-1;i<=2*n;i+=2,x--)
{
  cout<<setw(x);
  for(int j=1;j<=i;j++)
  cout<<"* ";
  cout<<endl;
}

the bold highlighted ones are the little changes to be added so as to print the pattern like a equi-triangle...

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