摘要：
The Cow LexiconTime Limit : 4000/2000ms (Java/Other)Memory Limit : 131072/65536K (Java/Other)Total Submission(s) : 16Accepted Submission(s) : 10Problem DescriptionFew know that the cows have their own dictionary with W (1 ≤ W ≤ 600) words, each containing no more 25 of the characters 'a'..&# 阅读全文