As a seasonal amusement some programmers like to print out a picture of a Christmas Tree looking like this. * *** * *** ***** * *** ***** ******* | ---+--- The tree consists of a series of tiers (three in this case) of increasing size. Write a program to produce such a display having prompted the user for thw number of tiers. You could try a few baubles on the tree (using o or O).

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As a seasonal amusement some programmers like to print out a picture of a Christmas Tree looking like this. * *** * *** ***** * *** ***** ******* | ---+--- The tree consists of a series of tiers (three in this case) of increasing size. Write a program to produce such a display having prompted the user for thw number of tiers. You could try a few baubles on the tree (using o or O).

Computer Science
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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What language are you writing in, what have you already tried, and what is giving you difficulties?
I'm using C language..!! I have no difficulties with the language itself..!! It's the logic that I lack..!! :P ..!! I just can't figue out how to use loops to achieve the wanted result..!! Can you help me with that..?? :)..!!
print characters 3 characters next time 5 characters .. 7 ... etc etc

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i haven't programmed C for very long time. do something like this for(i=1;i<= 3, i++) { for(k=2i+1; k >= 1; k++) { for(j=1; j<= 2i+1) { print on center here } } }
@eSpeX That's how tried doing it the first time using while loop : n = number of tiers while(n!=0) { printf( * \n) printf(O***O\n) n-- while(n!=0) { printf( * \n) printf( *** \n) printf( ***** \n) n-- } while(n!=0)...and so on..!! } But then it's kind of an infinite thing..!! ..@experimentX Thank you..!! However I don't really understand how it works..!!
i don't seem to have c compiler in my computer .. mind if I send you python code?
I'll try to decode it back to C..!! :P ..!! So don't worry..!! :) ..!!
i ended up codig this in java public class Christmas{ public static void main(String args[]){ int i, j, k; for(i=1; i <= 3; i++){ for(j=i+1; j>=1; j--){ for(k=1; k<=2*i+1; k++){ if(k >= j && k <= -j + 2*(i+1)) System.out.print("*"); else System.out.print(" "); } System.out.println(""); } } } }
still not working
this is the working code in Java public class Christmas{ public static void main(String args[]){ int i, j, k, l=3; for(i=1; i <= l; i++){ for(j=i+1; j>=1; j--){ for(int x=1; x<=l-i; x++) System.out.print(" "); for(k=1; k<=2*l+1; k++){ if(k >= j && k <= -j + 2*(i+1)) System.out.print("*"); else System.out.print(" "); } System.out.println(""); } } } }
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The logic is that you want to build i triangles of heights j = 2, 3, 4, ... with row lengths k = 1, 3, 5, 7.... So you use nested for loops (go backwards starting with k).
(Because you have to center it, it's important to note that the widest part of the tree should be 2*i+1)

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