bisect - NISHIO Hirokazu's Scrapbox (Auto-translated from Japanese)

bisect

dichotomous search

First place over k" is RIGHT, "first place over k" is LEFT

code:python

>> import bisect

>> xs = 1, 2, 4, 4, 5

>> bisect.bisect_left(xs, x) for x in range(7)

0, 0, 1, 2, 2, 4, 5

>> bisect.bisect_right(xs, x) for x in range(7)

0, 1, 2, 2, 4, 5, 5

https://gyazo.com/357c7b0a1c8a25f8bf415ae5bbc791fa

atcoder

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