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codeforces

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全部文章 / codeforces （共7篇）

（CodeForces 883A） The Meaningless Game 二分答案思路+骚操作

感谢博客：http://blog.csdn.net/puppet__/article/details/78395603 A. The Meaningless Game time limit per test: 1 second memory limit per test:256 megabyt...

codeforces 开方 acm 二分答案操作

2017-11-22

0 418

CodeForces 847C Sum of Nestings

SDUT 2017 Autumn Single Contest G 链接 Recall that the bracket sequence is considered regular if it is possible to insert symbols ‘+’ and ‘1’ into it ...

codeforces acm dfs 模拟

2017-11-22

0 354

CodeForces - 883E Field of Wonders

Polycarpus takes part in the “Field of Wonders” TV show. The participants of the show have to guess a hidden word as fast as possible. Initially all t...

codeforces 模拟题解 acm

2017-11-17

0 413

Codeforces Round #433 D - Jury Meeting

(Div. 2, based on Olympiad of Metropolises) 题意：有n个地点,m次航班，每次航班有4个信息，起飞日期di、出发地fi、目的地ti、花费ci，起飞和出发地至少有一个是地点0。现在n个地点，每个地点有一个人，他们要到地点0，当所有人都到达的时候，一起待k天，...

codeforces csdn acm

2017-09-07

0 480

Codeforces 851D Arpa and a list of numbers Round #432 (Div. 2

题意：给你n个数，你有两个操作： ①将某个数删掉，消耗为x ②将某个数+1，消耗为y，这个操作可以对某个数多次使用而你的目的是让最后n个数的Gcd不为1，求最小消耗思路：思路懒得打了，看下面这篇博客的吧 http://blog.csdn.net/mengxiang000000/...

codeforces gcd 前缀和

2017-09-06

0 338

CodeForces - 347C 博弈+gcd

题目链接：https://vjudge.net/contest/167223#problem/H It is so boring in the summer holiday, isn't it? So Alice and Bob have invented a new game to play. ...

codeforces gcd acm 博弈题解

2017-06-21

0 542

简单计算几何+卡精度 New Year Table CodeForces - 140A

链接：https://cn.vjudge.net/contest/166560#problem/D 注意题目中小圆一定贴着边放 Gerald is setting the New Year table. The table has the form of a circle; its radius...

codeforces 计算几何 acm 题解

2017-06-06

0 425