Hidden String Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 803    Accepted Submission(s): 302 Problem Description Today is the 1st anniversary of BestCoder. Soda, the contest manager, gets…

HDU 3397 Sequence operation 题目链接 题意:给定一个01序列,有5种操作 0 a b [a.b]区间置为0 1 a b [a,b]区间置为1 2 a b [a,b]区间0变成1,1变成0 3 a b 查询[a,b]区间1的个数 4 a b 查询[a,b]区间连续1最长的长度 思路:线段树线段合并.须要两个延迟标记一个置为01,一个翻转,然后因为4操作,须要记录左边最长0.1.右边最长0.1,区间最长0.1,然后区间合并去搞就可以 代码: #include <cstdi…

Sequence II Time Limit: 9000/4500 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 1422    Accepted Submission(s): 362 Problem Description Mr. Frog has an integer sequence of length n, which can be denoted as a1,a2…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5311 Hidden String Description Today is the 1st anniversary of BestCoder. Soda, the contest manager, gets a string s of length n. He wants to find three nonoverlapping substrings $s[l_1..r_1], s[l_2..r_2…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5146 Sequence Description Today we have a number sequence A includes n elements.Nero thinks a number sequence A is good only if the sum of its elements with odd index equals to the sum of its elements wi…

http://acm.hdu.edu.cn/showproblem.php?pid=5311 Hidden String Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 1499    Accepted Submission(s): 534 Problem Description Today is the 1st anniversar…

链接: http://acm.hdu.edu.cn/showproblem.php?pid=5311 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 1462    Accepted Submission(s): 521 Problem Description Today is the 1st anniversary of BestC…

任意门:http://acm.hdu.edu.cn/showproblem.php?pid=6395 Sequence Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 2564    Accepted Submission(s): 999 Problem Description Let us define a sequence as…

Hidden String Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 52    Accepted Submission(s): 25 Problem Description Today is the 1st anniversary of BestCoder. Soda, the contest manager, gets a…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5312 Sequence Time Limit: 2000/2000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 1336    Accepted Submission(s): 410 Problem Description Today, Soda has learned a…