摘要:
C Cleaning 题目连接: http://agc010.contest.atcoder.jp/tasks/agc010_c Description There is a tree with N vertices, numbered 1 through N. The i th of the N− 阅读全文
摘要:
B Boxes 题目连接: http://agc010.contest.atcoder.jp/tasks/agc010_b Description There are N boxes arranged in a circle. The i th box contains Ai stones. Det 阅读全文