CodeForces 592A PawnChess】的更多相关文章

简单暴力模拟. #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> using namespace std; ][]; int main() { ;i<;i++) scanf("%s",s[i]); int A=0x7FFFFFFF,B=0x7FFFFFFF; ;i<;i++) { ;j<;j++) { if(s[i][j]=='W…
CodeForces 592A 题意:在8*8棋盘里,有黑白棋,F1选手(W棋往上-->最后至目标点:第1行)先走,F2选手(B棋往下-->最后至目标点:第8行)其次.棋子数不一定相等,F1,F2中其中一个           棋子最先到达目标点对应方胜利. 思路:W,B棋子分别只能上.下,所以需知道:离第一行最近的W棋距离S1(并且这个W上方没有B),离第八行最近的B棋距离S2(这个B下方没有W) 胜利者为 S1<=S2?F1:F2 注意:S1==S2时 F1胜. 代码: #inclu…
A. PawnChess Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/592/problem/A Description Galois is one of the strongest chess players of Byteforces. He has even invented a new variant of chess, which he named «PawnChess». Thi…
A. PawnChess time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Galois is one of the strongest chess players of Byteforces. He has even invented a new variant of chess, which he named «PawnChe…
上一次我们拿学校的URP做了个小小的demo.... 其实我们还可以把每个学生的证件照爬下来做成一个证件照校花校草评比 另外也可以写一个物理实验自动选课... 但是出于多种原因,,还是绕开这些敏感话题.. 今天,我们来扒一下cf的题面! PS:本代码不是我原创 1. 必要的分析 1.1 页面的获取 一般情况CF的每一个 contest 是这样的: 对应的URL是:http://codeforces.com/contest/xxx 还有一个Complete problemset页面,它是这样的:…
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…
http://codeforces.com/contest/738/problem/A Polycarp has interviewed Oleg and has written the interview down without punctuation marks and spaces to save time. Thus, the interview is now a string s consisting of n lowercase English letters. There is…
http://codeforces.com/problemset/problem/662/A 题目大意: 给定n(n <= 500000)张卡片,每张卡片的两个面都写有数字,每个面都有0.5的概率是在正面,各个卡牌独立.求把所有卡牌来玩Nim游戏,先手必胜的概率. (⊙o⊙)-由于本人只会在word文档里写公式,所以本博客是图片格式的. Code #include <cstdio> #include <cstring> #include <algorithm> u…
http://codeforces.com/problemset/problem/274/B 题目大意: 给定你一颗树,每个点上有权值. 现在你每次取出这颗树的一颗子树(即点集和边集均是原图的子集的连通图)且这颗树中必须包含节点1 然后将这颗子树中的所有点的点权+1或-1 求把所有点权全部变为0的最小次数(n<=10^5) 题解: 因为每一次的子树中都必须有1,所以我们得知每一次变换的话1的权值都会变化 所以我们以1为根 现在,我们发现,如果一个节点的权值发生变化,那么他的父节点的权值一定发生变…