CF97C Winning Strategy 洛咕(题意应该快传上去了) 这题好玄学鸭...都不知道为啥是对的 设\(f[i][j]\)表示打了i轮比赛,有j个参加了一次的人,直接枚举有几个参加了转移过去即可 #include<bits/stdc++.h> #define il inline #define vd void #define ll long long il int gi(){ int x=0,f=1;char ch=getchar(); while(!isdigit(ch)){i…

题目传送门:http://codeforces.com/problemset/problem/97/C 题意:给出$n$与一个范围在$[0,1]$内的递增序列$P_0-P_n$,试构造一个无穷序列$\{a_i\}$满足$0 \leq a_i \leq n$,使得对于任意$k > 0$满足$a_k \leq \sum\limits_{i=1}^{k-1}(n - 2a_i)$且极限$\lim\limits_{m \rightarrow +\infty} \frac{\sum\limits_{i=1…

题解 CF97C [Winning Strategy] 此题是某平台%你赛原题,跟大家分享一下某校zsy和sxr等同学的神仙做法. 我解释一下题意,大是说,我有[无限]个人,每个人可以对他"伤害"至多两次.当伤害完第二次时,这个人会转变成一个贡献(Pi).Pi和杀死的人数正相关. Idea: 其实此题关键是"无限"这个关键词,这说明,操作到了极远的时候,其实是几种操作在互刷,稍后我们将伪证明,有且仅有特定两种操作在互刷. 为了方便讨论,我们定义: 没有被操作过的人称…

蒟蒻才普及组呀~ 大佬别D我 等集中补一下 CF980F:咋说捏,我觉得要联赛了做这题有点浪费时间,等想颓废了再来写写叭qwq 215E/279D/288E/331C3/431D/433E/750G/776G(数位dp) 917E/914F/932G(字符串) 论文 https://www.codechef.com/problems/DISTNUM 316D3(置换) 由于不想浪费时间(太弱),不会做且无中文题解(或者写得不好),直接咕咕咕 CF142C CF156E CF123C CF185C…

Description 4x4 tic-tac-toe is played on a board with four rows (numbered 0 to 3 from top to bottom) and four columns (numbered 0 to 3 from left to right). There are two players, x and o, who move alternately with x always going first. The game is wo…

Find the Winning Move Time Limit: 3000MS   Memory Limit: 32768K Total Submissions: 1286   Accepted: 626 Description 4x4 tic-tac-toe is played on a board with four rows (numbered 0 to 3 from top to bottom) and four columns (numbered 0 to 3 from left t…

B. Remainders Game time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Today Pari and Arya are playing a game called Remainders. Pari chooses two positive integer x and k, and tells Arya k but…

C. The Game Of Parity time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There are n cities in Westeros. The i-th city is inhabited by ai people. Daenerys and Stannis play the following game:…

题目链接: 题目 D. Remainders Game time limit per test 1 second memory limit per test 256 megabytes 问题描述 Today Pari and Arya are playing a game called Remainders. Pari chooses two positive integer x and k, and tells Arya k but not x. Arya have to find the v…

H. Bots Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/575/problem/H Description Sasha and Ira are two best friends. But they aren’t just friends, they are software engineers and experts in artificial intelligence. They are…