摘要：Problem Description For each prefix of a given string S with N characters (each character has an ASCII code between 97 and 126, inclusive), we want to 阅读全文

摘要：https://blog.csdn.net/dyx404514/article/details/41831947 这篇博客讲的很清楚 求next数组: 求extend数组 阅读全文

摘要：Problem Description CC always becomes very depressed at the end of this month, he has checked his credit card yesterday, without any surprise, there a 阅读全文

摘要：Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Ouli 阅读全文