题面在这里! 比较显而易见的暴力,O(2^(2n) + 2^n * 100) 就可以直接做了 #include<bits/stdc++.h> #define ll long long using namespace std; const int N=4105; #define pb push_back inline int getint(){ int x=0; char ch=getchar(); for(;!isdigit(ch);ch=getchar()); for(;isdigit(ch…
D. The Wu time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Childan is making up a legendary story and trying to sell his forgery — a necklace with a strong sense of "Wu" to the Kasoura…
目录 Codeforces 1000 A.Codehorses T-shirts B.Light It Up C.Covered Points Count(差分) D.Yet Another Problem On a Subsequence(DP) E.We Need More Bosses(圆方树) \(Description\) \(Solution\) F.One Occurrence(线段树) \(Description\) \(Solution\) G.Two-Paths(树形DP)…
Codeforces Round #532 (Div. 2) 题目总链接:https://codeforces.com/contest/1100 A. Roman and Browser 题意: 给出由-1和1组成的n个数,现在任意选定一个起点,从起点开始向左向右k个k个地拿走.最后问abs(cnt(-1)-cnt(1))最大是多少. 题解: 由于n和k最多只有100,所以枚举起点直接暴力就好了. 代码如下: #include <bits/stdc++.h> using namespace s…
http://codeforces.com/contest/738/problem/D Galya is playing one-dimensional Sea Battle on a 1 × n grid. In this game a ships are placed on the grid. Each of the ships consists of bconsecutive cells. No cell can be part of two ships, however, the shi…
http://codeforces.com/contest/738/problem/C Vasya is currently at a car rental service, and he wants to reach cinema. The film he has bought a ticket for starts in t minutes. There is a straight road of length s from the service to the cinema. Let's…