摘要：http://acm.hdu.edu.cn/showproblem.php?pid=4763 http://codeforces.com/problemset/problem/126/B 这两个题都是在考察next的应用。区别在于一个是不能有重叠，一个是可以有重叠。 一级条件，前后缀都存在；二级条件 阅读全文

摘要：A + B for you again Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 9291 Accepted Submission(s): 阅读全文

摘要：Period Time Limit: 3000MS Memory Limit: 30000K Total Submissions: 19817 Accepted: 9640 Description For each prefix of a given string S with N characte 阅读全文

摘要：https://blog.csdn.net/v_july_v/article/details/7041827 阅读全文

摘要：Surprising Strings Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 7659 Accepted: 4878 Description The D-pairs of a string of letters are t 阅读全文