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点击就送屠龙宝刀C. Gennady the Dentisttime limit per test 1 second memory limit per test 256 megabytes input standard input output standard outputGennady is one of the best child dentists in Berland. Today

A. Alena’s Scheduletime limit per test 1 secondstandard output Alena has successfully passed the entrance exams to the university and is now looking forward to start studying.One two-hour l

D. Phillip and TrainsThe mobile application store has a new game called “Subway Roller”.The protagonist of the game Philip is located in one end of the tunnel and wants to get out of the other