Pyramid in C++

  1. Oct 25, 2008 #1
    I need to do a pyramid in C++ like this one:
    *
    * *
    * * *
    * * * *
    * * * * *

    buti just know how to do the figure at one side:

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


    # include <stdio.h>
    # include <math.h>

    void main()
    {

    int count,count2;

    for(count=1;count<=5;count++)
    {
    for(count2=1;count2<=count;count2++)
    printf(" *");
    printf("\n");
    }
    }

    Can anyone help me hoy to change from the side to a pyramid form?
     
  2. jcsd
  3. Oct 25, 2008 #2

    Borek

    User Avatar

    Staff: Mentor

    Please elaborate, as both pyramids look identical.
     
  4. Oct 25, 2008 #3
    ok sorry, i did it as a pyramid but the page puts it at the corner yet. Bu i mean i just know how to do the figure that is above drawn with the *, but i ned to do it but in the pyramid form, like a triangle of the cue ball, but with base 5.
     
  5. Oct 25, 2008 #4

    Borek

    User Avatar

    Staff: Mentor

    You have to print spaces before stars.
     
  6. Oct 25, 2008 #5
    ok, and howi do that?....
     
  7. Oct 25, 2008 #6
    how i do that in my code above ?
     
  8. Oct 25, 2008 #7
    If you draw your triangle with visible spaces, then you can count how many you need on each line, and you can programme accordingly, right?

    ----*
    ---*-*
    --*-*-*
    -*-*-*-*
    *-*-*-*-*
    So you see that there are fours spaces on the first line, three on the second, and so on.
    Now you just have to translate that into your code.
     
  9. Oct 25, 2008 #8
    ok, i know that ther i need always four spaces in each line but i dont know how to put that in codes for run my programs perfectly....i just know how to put all the * to begin at the left corner....that the problem

    can u help me more?....
     
  10. Oct 25, 2008 #9
    .....
    for(count=1;count<=5;count++)
    {
    /* here you need to insert 4 spaces when count==1,
    3 spaces when count==2, (3=5-2)
    2 spaces when count==3, (2=5-3)
    1 space when count==4, (1=5-4)
    0 space when count==5 (0=5-5)
    get the idea?
    You can do this with an additional for/next loop that runs 5-count times, each time it should print ONE space.
    Try it out, if it does not work, post this part of your code.
    If it works, post the result!!
    */
    for(count2=1;count2<=count;count2++)
    printf(" *");
    printf("\n");
    }
    .....
     
  11. Oct 25, 2008 #10
    Do you mean that right?...

    but i dont know how to state the instruction of teh spaces in that for between the other two for...
    help me a little more plz

    # include <stdio.h>
    # include <math.h>

    void main()
    {

    int count,count2;

    for(count=1;count<=5;count++)
    {
    for( ; ; )
    for(count2=1;count2<=count;count2++)
    printf(" *");
    printf("\n");

    }
    }
     
  12. Oct 25, 2008 #11
    i dont know how to do this:

    You can do this with an additional for/next loop that runs 5-count times, each time it should print ONE space.

    i have just discuss in my class the instruction for no more than that....
     
  13. Oct 25, 2008 #12
    for(count=1;count<=5;count++)
    {
    // complete the start value and end condition for the loop, the index should increment by one
    for( ; ; ){ /* here you add a printf statement that prints simply " " (a space)*/}
    //
    for(count2=1;count2<=count;count2++)
    printf(" *");
    printf("\n");

    }
     
  14. Oct 25, 2008 #13
    ty... i sucees with my pyramid i get the correct code

    # include <stdio.h>
    # include <math.h>

    void main()
    {

    int count,count2,count1;


    for(count=1;count<=5;count++)
    {
    for(count1=count;count1<=5;count1++)
    printf(" ");
    for(count2=1;count2<=count;count2++)
    printf(" *");
    printf("\n");

    }
    }
     
  15. Oct 25, 2008 #14
    Congratulations!!!
     
  16. Oct 25, 2008 #15
    ty..... i will need your help durng the rest of the semester... i have another homeworks.. i will begin on the week so i will request your help... a lot of thanks...
     
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