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…

D - Remainders Game Description 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 value . There are n ancient numbersc1,  c2, ..., cn and Pari has to…

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:…

H. Bots time limit per test 1.5 seconds memory limit per test 256 megabytes input standard input output standard output Sasha and Ira are two best friends. But they aren’t just friends, they are software engineers and experts in artificial intelligen…