Technocup 2017 - Elimination Round 1 (Unofficially Open for Everyone, Rated for Div. 2) D

The organizers of a programming contest have decided to present t-shirts to participants. There are six different t-shirts sizes in this problem: 
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Technocup 2017 - Elimination Round 1 (Unofficially Open for Everyone, Rated for Div. 2) C

This is an interactive problem. You should use flush operation after each printed line. For example, in C++ you should usefflush(stdout), in
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Technocup 2017 - Elimination Round 1 (Unofficially Open for Everyone, Rated for Div. 2) B

Vasily exited from a store and now he wants to recheck the total price of all purchases in his bill. The bill is a string in which the names of the pu
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Technocup 2017 - Elimination Round 1 (Unofficially Open for Everyone, Rated for Div. 2) A

Vasily has a number a, which he wants to turn into a number b. For this purpose, he can do two types of operations:multiply the current numb
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ReactiveSwift源码解析(七) Signal的CombineLatest的代码实现

本篇博客我们就来聊一下combineLatest()的使用以及具体的实现方式。在之前的《iOS开发之ReactiveCocoa下的MVVM》的博客中我们已经聊过combineLatest()的用法,虽然是使用老版本的ReactiveCocoa和Objective-C语言介绍的,不过使用原理上都是一致
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BZOJ2491 : Quelling Blade

首先将合成树展开,得到一棵不超过$m(m\leq 10^6)$的有根树。问题等价于,不休息地访问所有点,访问每个点需要时间$t_i$,价值为$v_i$。设$vis_i$为访问$i$点的时间(不含$t_i$),最大化$\sum t_i\times v_i$。根据排序不等式可得,需要按照$\frac{v
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集成到Buildroot中的Helloword程序【转】

 本文转载自:http://www.openloongson.org/forum.php?mod=viewthread&tid=85本帖最后由 gt945 于 2015-7-5 17:06 编辑一、为什么要使用Buildroot肯定有人会想,编译一个Helloworld程序还用Bu
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FATAL ERROR: Could not find ./share/fill_help_tables.sql

[root@c01 mysql-5.6.33]# /apps/mysql-5.6.33/scripts/mysql_install_db --datadir=/data/my_db --user=mysqlFATAL ERROR: Could not find ./share/fill_help_t
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Codeforces Round #420 (Div. 2) E. Okabe and El Psy Kongroo 矩阵快速幂优化dp

E. Okabe and El Psy Kongrootime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputOkabe likes to take w
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[Angular] Show a loading indicator in Angular using *ngIf/else, the as keyword and the async pipe

The network may be unreliable and loading data may take time. Thus it is important to give the user some feedback about what's going on as fast as pos
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