The same code on different versions of C++, but only C++17 gets AC. Old but Gold!
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fun fact: CNOI is still using C++14 as a standard.
C++11 also old But Gold!
C++17 32bit is faster for int operations, and C++20 64bit is faster for long long operations.
Try long long and resubmit using 64bit ++20;
Probably you just got lucky, test 4 took the longest time.
well, yeh. but these are edge cases. like in that ONE problem u like that thing that's only in c++ 20. also c++20 is faster for long longs. but its rly just prefrence