Changing bounds makes WA solution AC for unknown reason

Правка en3, от WhaleVomit, 2017-12-12 20:52:09

I was working on the problem Xenia and Tree here: http://mirror.codeforces.com/problemset/problem/342/E

But the problem statement doesn't actually matter.

My first solution gets WA: http://mirror.codeforces.com/contest/342/submission/33140735

and my second gets AC: http://mirror.codeforces.com/contest/342/submission/33140905

The only difference between the two submissions that mattered is that I increased MAX_N from 100000 to 100005. This should not have changed anything, because I'm pretty sure my array sizes were all large enough. So why did this happen?

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  Rev. Язык Кто Когда Δ Комментарий
en3 Английский WhaleVomit 2017-12-12 20:52:09 72
en2 Английский WhaleVomit 2017-12-12 20:50:22 13
en1 Английский WhaleVomit 2017-12-12 20:49:31 589 Initial revision (published)