I had to resubmit an old solution of mine on Codeforces. So I took my old solution, which had a lot of individual #includes in it, replaced them all with one common #include <bits/stdc++.h> and resubmitted.
Surprisingly, my old solution, which gave an AC, gave TLE on case 6 after the change.
Links:
Could someone please point out what happened here?
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Thats really weird... Here both codes ended up in TLE
I've resubmitted your first submission and got TL too (10349435).
It's kinda weird, because it took 0.3s to run on test #6 in 2014, which is more than three times smaller than TL.
Probably it happened because of GCC update, same code gets OK with Visual Studio (10349485) right now.
I resubmitted my old solution and got TLE too.
Although, adding ios_base::sync_with_stdio(0) seems to speed it up back to its exact original time.
The update reason seems to make sense. Thanks a lot.