http://codeforces.com/problemset/problem/135/A 题意 : 我能说我卡在这个题的题意上很久吗.....这个题就是在数组里找一个数,然后找另一个数把他替换掉,然后再对数组进行排序,输出可能的数组最小值.... 思路 : 一开始没反应过来,不知道要替换掉哪个数,后来一想才明白,要求最后得到的最小,那就把最大的那个替换掉不就行了,而且最简单的还是替换成1,然后要注意的一点是因为题目中说必须要替换掉一个,而且不能用自己替换掉自己,所以要考虑万一输入的全是1,就…

Content 有 \(n\) 个数 \(a_1,a_2,a_3,...,a_n\),试用 \(1\) ~ \(10^9\) 之间的数(除了本身)代替其中的一个数,使得这 \(n\) 个数的总和最小,并将数组按照非降序输出. 数据范围:\(1\leqslant n\leqslant 10^5,1\leqslant a_i\leqslant 10^9\). Solution 首先我们排序一遍之后就可以找到最大的数,然后很显然,修改得要从最大的数入手. 然后我们需要分类讨论一下: 当最大的数为 \(…

BeautifulSoup很赞的东西 最近出现一个问题:Python 3.3 soup=BeautifulSoup(urllib.request.urlopen(url_path),"html.parser") soup.findAll("a",{"href":re.compile('^http|^/')}) 出现warning: Some characters could not be decoded, and were replaced wi…

397. Integer Replacement QuestionEditorial Solution My Submissions   Total Accepted: 5878 Total Submissions: 21519 Difficulty: Easy Given a positive integer n and you can do operations as follow: If n is even, replace n with n/2. If n is odd, you can…

在创建pack时出现了“The replacement token 'author' has no value”的错误提示. 解决方法: 1.可能程序没生成过,在解决方案上重新生成解决方案,注意Debug和Release版本都生成一次,再重新运行pack的命令进行打包. 2.如果上面还不能解决,可以尝试此命令,指定参数:nuget pack myproject.csproj -IncludeReferencedProjects -Prop Configuration=Release 痛过以上方法…

Stat2.2x Probability(概率)课程由加州大学伯克利分校(University of California, Berkeley)于2014年在edX平台讲授. PDF笔记下载(Academia.edu) Summary Independent $$P(A\cap B)=P(A)\cdot P(B)$$ Binomial Distribution $$C_{n}^{k}\cdot p^k\cdot(1-p)^{n-k}$$ R function: dbinom(k, n, p) U…

C. Replacement Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/570/problem/C Description Daniel has a string s, consisting of lowercase English letters and period signs (characters '.'). Let's define the operation of replac…

Is C# a clone of a Microsoft replacement for Java?Let's look at what Anders Hejlsberg Said. Hejlsberg: First of all, C# is not a Java clone. In the design of C#, we looked at a lot of languages. We looked at C++, we looked at Java, at Modula 2, C, an…

C. ReplacementTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/570/problem/C Description Daniel has a string s, consisting of lowercase English letters and period signs (characters '.'). Let's define the operation of replace…

本文转自:http://www.knowdotnet.com/articles/regereplacementstrings.html The String.Replace function has been a valuable tool steps) further. It allows replacement of text using regular expressions. Not only can you define the text to replace using a regu…