You are given a chessboard of size 1 × n. It is guaranteed that n is even. The chessboard is painted like this: "BWBW...BW". Some cells of the board are occupied by the chess pieces. Each cell contains no more than one chess piece. It is known t…

Chess Placing time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given a chessboard of size 1 × n. It is guaranteed that n is even. The chessboard is painted like this: "BWBW...BW"…

题意: 移动最少的步数,使得所有的棋子在同一颜色的格子中. 每次一个棋子只能向左或者向右移动一步,不能移到有棋子的格子中. 思路: 枚举全黑和全白的情况. 对于每一个需要移动的棋子,它移动到的位置一定是从1开始第一个可以移动的位置,不交叉移动,保证了步数最小. 代码: #include <stdio.h> #include <string.h> #include <algorithm> using namespace std; ; int v[N],g[N]; int…

链接 [https://codeforces.com/contest/985/problem/A] 题意 给你一个偶数n,输入n/2个数,代表棋子的位置,有一个1*n的棋盘是黑白相间的 问你使得所有棋子在同一种颜色所需移动的最小步数 分析 先对所有棋子的位置排序 贪心枚举两种颜色都算在比较 代码 #include<bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define mp ma…

[链接]:CF985A [题意]:给你n和n/2个数ai,每个ai和奇数.偶数比较距离(注意选了奇数,偶数的距离就不要算了,反之同理),求最小的答案. [代码]: #include <iostream> #include<queue> #include<string.h> #include<bits/stdc++.h> using namespace std; #define N 100010 #define M 2005 const int INF = 0…

题目链接:https://codeforces.com/contest/985 ’A.Chess Placing 题意:给了一维的一个棋盘,共有n(n必为偶数)个格子.棋盘上是黑白相间的.现在棋盘上有n/2个棋子,让你全部移动到黑色格子或者白色格子,要求步数最少,并输出步数. 题解:由于黑色或者白色都是固定位置,我们对棋子位置排个序,然后全部移动到任意一个颜色,取两个最小步数的最小值就好了. #include<bits/stdc++.h> #define clr(x) memset(x,0,s…

D. Anton and Chess 题目连接: http://codeforces.com/contest/734/problem/D Description Anton likes to play chess. Also, he likes to do programming. That is why he decided to write the program that plays chess. However, he finds the game on 8 to 8 board to…

Gerald and Giant Chess Problem's Link: http://codeforces.com/contest/559/problem/C Mean: 一个n*m的网格,让你从左上角走到右下角,有一些点不能经过,问你有多少种方法. analyse: BZOJ上的原题. 首先把坏点和终点以x坐标为第一键值,y坐标为第二键值排序 . 令fi表示从原点不经过任何坏点走到第i个点的个数,那么有DP方程: fi=Cxixi+yi−∑(xj<=xi,yj<=yi)C(xi−xj)…

题目链接: http://codeforces.com/contest/734/problem/D D. Anton and Chess time limit per test4 secondsmemory limit per test256 megabytes 问题描述 Anton likes to play chess. Also, he likes to do programming. That is why he decided to write the program that pla…

 Little Elephant and Chess Time Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 259A Description The Little Elephant loves chess very much. One day the Little Elephant and his friend decided…