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Codeforces (c) Copyright 2010-2024 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 10.11.2024 11:21:29 (i1).
Десктопная версия, переключиться на мобильную.
При поддержке
Could Someone take a look at it. I've been stuck here for more than 4 hours. Please
I'm guessing cache.
Thanks for giving me the problem name. I'll read about it.
Thanks. You are right. Its a cache.
Cache friendliness is one possible reason.
Another reason would be that in Java, memory of a multidimensional array are not allocated in a contiguous block, so
new int[a][2]would createasmall blocks of memory each contains aint[2]. In comparison withnew int[2][a], that's a lot slower.new int[2*a]should be faster (but also harder to read)Thanks for the link. You're a savior. :)