摘要:
Musical Theme Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 36995 Accepted: 12210 Description A musical melody is represented as a sequen 阅读全文
摘要:
Description You are given a number of case-sensitive strings of alphabetic characters, find the largest string X, such that either X, or its inverse c 阅读全文
摘要:
Long Long Message Time Limit: 4000MS Memory Limit: 131072K Total Submissions: 36765 Accepted: 14741 Case Time Limit: 1000MS Description The little cat 阅读全文
摘要:
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 ask you to perform the following 阅读全文