[CF1056E]Check Transcription】的更多相关文章

题目:Check Transcription 传送门:http://codeforces.com/contest/1056/problem/E 分析: 1)显然有个$O( \frac{t}{max(cnt_0,cnt_1)}*t)$暴力:枚举替代$0$的字符串,计算替代$1$的字符串长度,判断是否可行. 2)我们字符串匹配不必一个一个字符比较,可以用哈希.这样复杂度就降为了$O( \frac{t}{max(cnt_0,cnt_1)}*s)$,由于$max(cnt_0,cnt_1)>=\frac{…
传送门 暴力枚举\(0\)的长度,如果对应的\(1\)的长度也是一个整数就去check是否合法.check使用字符串哈希. 复杂度看起来是\(O(st)\)的,但是因为\(01\)两个数中数量较多的至少有\(\frac{|s|}{2}\)个,那么最多有\(\frac{2|t|}{|s|}\)个可能的答案,而每一次check是\(O(|s|)\)的,所以总复杂度是\(O(|t|)\)的 #include<bits/stdc++.h> #define ll long long #define PL…
题目链接:传送门 题目: E. Check Transcription time limit per test seconds memory limit per test megabytes input standard input output standard output One of Arkady's friends works at a huge radio telescope. A few decades ago the telescope has sent a signal s t…
题目链接:https://codeforces.com/problemset/problem/1056/E One of Arkady's friends works at a huge radio telescope. A few decades ago the telescope has sent a signal $s$ towards a faraway galaxy. Recently they've received a response $t$ which they believe…
One of Arkady's friends works at a huge radio telescope. A few decades ago the telescope has sent a signal s s towards a faraway galaxy. Recently they've received a response t t which they believe to be a response from aliens! The scientists now want…
A. Determine Line Water. #include <bits/stdc++.h> using namespace std; ]; int main() { while (scanf("%d", &n) != EOF) { memset(vis, , sizeof vis); , tot, x; i <= n; ++i) { scanf("%d", &tot); while (tot--) { scanf("…
最近在使用maven,项目测试的时候出现了这么一个错.-Dmaven.multiModuleProjectDirectory system property is not set. Check $M2_HO  网上找到了一个解决办法. 1.添加M2_HOME的环境变量 2.Preference->Java->Installed JREs->Edit 选择一个jdk 添加    -Dmaven.multiModuleProjectDirectory=$M2_HOME…
    最近帮一个客户搭建跨洋的合并复制,由于数据库非常大,跨洋网络条件不稳定,因此只能通过备份初始化,在初始化完成后向海外订阅端插入数据时发现报出如下错误: Msg 548, Level 16, State 2, Line 2 The insert failed. It conflicted with an identity range check constraint in database %s, replicated table %s, column %s. If the identit…
一.需求: check user 对SharePoint list 的permission 代码如下: private static string GetListPermission(SPList list, string loginName) { string perStr = string.Empty; SPSecurity.RunWithElevatedPrivileges(() => { try { SPUser user = list.ParentWeb.Users[loginName…
曾经用Cornerstone check out 一份项目下来,但其中第三方.a库始终丢失,项目报错,研究后找到了以下解决方法: 首先,Xcode默认忽略.a 文件.所以无法提交到svn服务器,但是很多第三方的库都有.a文件.所以还是必须提交到服务器. 搜索了一下解决方案: 1. 打开终端,  在命令行中输入: vi ~/.subversion/config  来打开配置文件.2. 然后, 在[miscellany]项找到这个串:  # global-ignores = *.o *.lo *.l…