Stuck on PSet1: I have the correct output, but Check50 says it's wrong

Question

I'm stuck on the Mario part of PSet1. I've managed to write up my program and the output is always correct (or at least seems to be to me). I know it's definitely the loops that are making things difficult for me. Here are my loops:

for (int i = 0; i < n; i++)
{

for (int a = 0; a < (n - (i+1)); a++)

{
printf(" ");
}

for (int b = 0; b <= (i + 1); b++)
{
printf("#");
}

printf("\n");
}

The output looks exactly the same as it should. However, when I execute Check50, I get the following:

:) mario.c exists
:) mario.c compiles
:) rejects a height of -1
:) handles a height of 0 correctly
:( handles a height of 1 correctly
\ expected output, but not "##\n"
:( handles a height of 2 correctly
\ expected output, but not " ##\n###\n"
:( handles a height of 23 correctly
\ expected output, but not "                      ##\n             ..."
:) rejects a height of 24
:) rejects a non-numeric height of "foo"
:) rejects a non-numeric height of ""

I'd really appreciate some help! Thanks!

Answer 1

check50 is not wrong! Please check this question for more information about check50.

Make sure you're in the same directory as mario.c and this is the command you run to check your program with check50

check50 2014/x/pset1/mario mario.c

Also, your input must match the one required by the pset specification page.

Here's a sample output per the pset specification page

jharvard@appliance (~/Dropbox/pset1): ./mario
Height: 8
       ##
      ###
     ####
    #####
   ######
  #######
 ########
#########

Notice that you should let the user type in the height on the same line as the prompt Height:!

Answer 2

I believe I had the same issue. Make sure that you use printf("\n"); only by the end of your first loop (the one for the rows of the pyramid)!

On my end, the reason for

:( handles a height of 2 correctly
    \ expected output, but not " ##\n###\n"

was the fact that the check was not looking into the right row.

Answer 3

The answer is pretty easy. The last # has to be with the /n in the end of the big loop.

That's it!