标签：test dup ati ack challenge contest rac list sub
hackerrankWeek of Code 32
A.Duplication
B.Fight the Monsters!
C.Circular Walk
D.Geometric Trick
E.Balls and Boxes
F.Special Substrings
原文地址：https://www.cnblogs.com/NineSwords/p/9240960.html
