Is __lg(0) problematic?

Правка en4, от rgnerdplayer, 2021-07-03 11:24:37

I was just doing virtual on 1338A - Powered Addition.

I wrote the following code: 121160133

and it out puts "63" on this test: N = 5, A = {-9, -2, -2, 7, 5} on both versions of C++17.

But I thought __lg(0) is -1?

Does anyone have any idea?

(Also I tried to use custom invocation and attempted to exit once "ans" is changed to 63 but nothing happened.)

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  Rev. Язык Кто Когда Δ Комментарий
en6 Английский rgnerdplayer 2021-07-03 11:39:22 108
en5 Английский rgnerdplayer 2021-07-03 11:38:01 460
en4 Английский rgnerdplayer 2021-07-03 11:24:37 10 Tiny change: 'ation and try to exit o' -> 'ation and attempted to exit o'
en3 Английский rgnerdplayer 2021-07-03 11:23:35 27 Tiny change: ' -2, 7, 5}\n\nBut I ' -> ' -2, 7, 5} on both versions of C++17.\n\nBut I '
en2 Английский rgnerdplayer 2021-07-03 11:21:40 1006
en1 Английский rgnerdplayer 2021-07-03 11:20:36 1305 Initial revision (published)