非常好! 目前共计 158 篇日志。 继续努力。

1018 Public Bike Management

05-30

1017 Queueing at Bank

05-30

1016 Phone Bills

05-30

1015 Reversible Primes

05-30

1014 Waiting in Line

05-30

1013 Battle Over Cities

05-30

1012 The Best Rank

05-30

1011 World Cup Betting

05-30

1010 Radix

05-30

1009 Product of Polynomials

05-30