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codechef problems 第一弹 一.Authentication Failed 原题题面 Several days ago Chef decided to register at one of the programming sites. For registering he was asked to choose a nickname and a password. There was no problem with choosing a nickname ("Chef" is his favorite nickname), but choos...
在CodeChef上,SIGSEGV是一种运行时错误,它代表了"Segmentation Fault",意味着程序尝试访问未分配给它的内存段。 概念:运行时错误是指在程序运行过程中发生的错误,导致...
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T1 https://www.codechef.com/MAY18B/problems/RD19 刚开始zz了,其实很简单。 删除一个数不会使gcd变小,于是就只有0/1两种情况 T2 https://www.codechef.com/MAY18B/problems/XORAGN 我们可以把B序列看做一个矩阵 那么$A(i,j)$和$A(j,i)$会抵消掉 因此答案就是$\sum_1^n A(i,i) + A(i,...
To see the Statistic for problem choose problem from list of problems and press button 'All submissions' at the top of the problem description. To view the status, hover over the check box, cross or warning icon in the result column. ...
Codechef problems are good. →Reply EbTech 2 months ago,#| +28 Hey all, I should point out that we're seeing not only differences between the two ratings systems, but also differences in the settings of their parameters. A high startingparameter is what enables new players' ratings to ch...
"Mathematical Expectation" is one of those few topics that is rarely discussed in details in any curriculum, but is nevertheless very important. This tutorial attempts to throw some light on this topic by discussing few related mathematical and programming problems....
I hope you will participate with your fellow programmers and enjoy the contest problems. Contest Details: Time:22nd March 2020 (2130 hrs) to 23rd March (00:00hrs). (Indian Standard Time — +5:30 GMT) — Check yourtimezone Contest link:http://www.codechef.com/COOK116...
Editorial:http://discuss.codechef.com/problems/FAVNUM Tags:aho-corasick,dynamic-programming,july12,medium,xcwgf666 Date Added:20-12-2011 Time Limit:0.1 - 0.146779 secs Source Limit:50000 Bytes Languages:C, CPP14, JAVA, PYTH, PYTH 3.6, CS2, PAS fpc, PAS gpc, RUBY, PHP, GO, NODEJS, ...