摘要：E. Anton and Permutation time limit per test 4 seconds memory limit per test 512 megabytes input standard input output standard output Anton likes per 阅读全文

摘要：The Company Dynamic Rankings has developed a new kind of computer that is no longer satisfied with the query like to simply find the k-th smallest num 阅读全文

摘要：COT - Count on a tree #tree #tree You are given a tree with N nodes.The tree nodes are numbered from 1 to N.Each node has an integer weight. We will a 阅读全文

摘要：Feed the dogs Time Limit: 6000MS Memory Limit: 65536K Total Submissions: 20634 Accepted: 6494 Description Wind loves pretty dogs very much, and she ha 阅读全文

摘要：DQUERY - D-query #sorting #tree #sorting #tree English Vietnamese Given a sequence of n numbers a1, a2, ..., an and a number of d-queries. A d-query i 阅读全文