Can someone lend me some advice? I'm having trouble with finding the logic between the space and hashes.

int main(void)
    int height, row, hash;

        printf("Height: ");
        height = get_int();
    while (height < 0 || height > 23);

    for (row = 0; row < height; row ++)
        for(hash = 0; hash < height + 1; hash ++)
  • What have you tried? Inside your for loop, can you use the row number to determine how many spaces or hashes to print?
    – robert_x44
    Sep 20, 2017 at 1:50
  • Updated what I have so far.
    – Perry Tran
    Sep 20, 2017 at 3:12
  • 1
    Like @robert_x44 said, the number of hashes depends on row (rather than height). The number of spaces before the hashes might depend on both row and height.
    – Blauelf
    Sep 20, 2017 at 7:18
  • Hi Perry, the last line of a pyramid will have <i>height</i> Hashes. And the first line need one Hash, only. Therefore, you've to fill up the left side inside of the first line with <i>height-1</i> spaces. The count of space inside of the second line: <i>height-2</i>. etc. etc. Dec 21, 2017 at 7:20
  • When I was working on this assignment, I used the same method as Perry, that is, use for loop to repeatedly paint "space" & "#". But I wonder if there is a simpler way.
    – bobby1208
    Feb 26, 2018 at 10:09

1 Answer 1


I don't want to spoiler your, so I try to give you a hint. If this is not helping you I can get more concrete.

You know that the peak of mario's hill is 1 hash wide, so you want to print 1 hash in the first loop iteration and 2 in the second and so on until you reached the hill height.But before you print the hash you have to print a certain number of whitespaces. This number decreases every iteration.

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