地址:https://nanti.jisuanke.com/t/17314
题目:
Three circles C_{a}Ca, C_{b}Cb, and C_{c}Cc, all with radius RR and tangent to each other, are located in two-dimen...
Let SS be
a sequence of integers s_{1}s1, s_{2}s2, ......, s_{n}snEach
integer is is associated with a weight by the following rules:
(1) If is is negative,...
02Train Seats Reservation
问答
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You are given a list of train stations, say from the station 11 to the station 100100.
The passengers can order several ...