2013-2014 Petrozavodsk Winter Training Camp, Saratov SU Contest
Problem A
Unsolved.
Problem B
Solved by kblack & zerol. 03:51 (+)
Problem C
Solved by ultmaster. 01:16 (+)
Problem D
Unsolved.
Problem E
Solved by zerol. 00:32 (+)
题意:给若干个字符串,要求两两配对,使得每一对的最长公共前缀的长度和最大。
题解:全部插入一棵 trie,如果某个结点有超过两个字符串,就两两一对用掉,如果剩下一个的话就丢给父节点。
Problem F
Solved by kblack. 01:33 (+)
Problem G
Unsolved.
Problem H
Unsolved.
Problem I
Unsolved.
Problem J
Solved by kblack. 00:54 (+)
Problem K
Solved by ultmaster. 03:59 (+1)