These results are final for the contest!

As outlined in the README, we tested your programs with some other common Linux applications. Namely:
- "ps -aef"
- "ls"
- "convert"

You will also notice tester-9, which is simply tester-5 with a malloc(1) call after every request (both malloc()s and realloc()s) and only 60,000 runs through the for loop instead of 400,000. A number of programs never made use of free'd blocks, but just sbrk()'d when the most recent malloc() was freed. To pass tester-9, you don't need to ever sbrk() negatively, but you must make use of free'd blocks.