Record - Nov. 27st, 2020 - Exam. REC & SOL
Problem. 1 Junior - ThinkingDesc. & Link.注意到值域乘范围刚好能过。然后就存两个桶即可。。。（数组开小飞了半天才调出来。。。）Problem. 2 Jun...
In mathematics you don't understand things, you just get used to them.
In mathematics you don't understand things, you just get used to them.