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: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{…

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…

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…

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…

题意:给你两个字符串a,b,不区分大小写,将b分成三段,重新拼接,问是否能得到A: 思路:暴力枚举两个断点,然后check的时候需要字符串hash,O(1)复杂度N*N: 题目链接:传送门 #pragma comment(linker, "/STACK:1024000000,1024000000") #include<iostream> #include<cstdio> #include<cmath> #include<string> #…

List of Chromium Command Line Switches https://peter.sh/experiments/chromium-command-line-switches/ There are lots of command lines which can be used with the Google Chrome browser. Some change behavior of features, others are for debugging or experi…

参考:https://peter.sh/experiments/chromium-command-line-switches/ List of Chromium Command Line Switches Condition Explanation -- ⊗ Report pseudo allocation traces. Pseudo traces are derived from currently active trace events. ↪ --/prefetch:1[1] ⊗ /pre…

https://sites.google.com/a/chromium.org/chromedriver/capabilities http://stackoverflow.com/questions/tagged/selenium-chromedriver ChromeDriver - WebDriver for Chrome Search this site     Capabilities & ChromeOptions Capabilities are options that you…

转自:http://peter.sh/experiments/chromium-command-line-switches/ There are lots of command lines which can be used with the Google Chrome browser. Some change behavior of features, others are for debugging or experimenting. This page lists the availabl…