大致题意:3 * 3的黑白格,在翻转的时候会本身和四周的都翻转,问最小翻转几次变成全部是白色解题思路:把3 * 3 = 9 个格子进行全排列,然后穷举然后找翻转的最小次数 #include <iostream> #include <algorithm> #include <cstdio> using namespace std; ,,,-,}; ,,,,-}; ]; ][]; void change(int s){ ; ; ;i < ;i++){ int xx =…

Flip Game Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 65535/32768 K (Java/Others)Total Submission(s): 1800    Accepted Submission(s): 589 Problem Description Flip game is played on a square N*N field with two-sided pieces placed on each…

Flip Game Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 131072/65536K (Java/Other) Total Submission(s) : 44   Accepted Submission(s) : 17 Problem Description Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each…

Petrozavodsk Winter Training Camp 2018 Problem A. Mines 题目描述:有\(n\)个炸弹放在\(x\)轴上,第\(i\)个位置为\(p_i\),爆炸半径为\(r_i\),引爆第\(i\)个炸弹的花费为\(c_i\).但一个炸弹\(i\)爆炸时,在爆炸半径内的其它炸弹都会爆炸,而且不用花费.有\(Q\)个操作,每次改变一个炸弹的花费,然后输出引爆所有炸弹的最小费用. solution 不会. Problem B. Balls 题目描述:有\(n\…

链接:http://poj.org/problem?id=1753 Flip Game Description Flip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is white and the other one is black and each piece is lying either i…

题意:4*4的正方形,每个格子有黑白两面,翻转格子使得4*4个格子显示全黑或全白,翻转要求:选中的那个格子,以及其上下左右相邻的格子(如果存在)要同时翻转.输出最小的达到要求的翻转次数或者Impossible(如果不可能) 题目链接:http://poj.org/problem?id=1753 分析:因为每个格子只有黑白两面,所以对于每个格子来说,要么不翻转,要么翻转一次,因为翻转奇数次结果和翻转一次得到的效果是一样的,而翻转偶数次得到的效果和不翻转是一样的,则总共有16个格子,最多要翻转16次…

In my stochastic processes class, Prof Mike Steele assigned a homework problem to calculate the ruin probabilities for playing a game where you with 1 dollar with probability p and lose 1 dollar with probability 1-p. The probability of winning is not…

题目链接:http://acm.nyist.net/JudgeOnline/problem.php?pid=529 由于此题槽点太多,所以没忍住...吐槽Time: 看到这题通过率出奇的高然后愉快的进来想水掉...but... 一开始狂百度找讨论区也完全看不懂题意啊, 还好后来通过这些零碎的线索补脑了下面的题意, 能AC但不很确定484题目本意,希望对大家有帮助(话说这样会不会帮倒忙啊^_^). 题目意思:要通过x的二进制的任意位置上的数(0变为1,或1变为0)使十进制的x变为x+1, 一次只能…

Flip Game I Problem Description: You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take turns to flip two consecutive "++" into "--". The game…

题目地址:http://poj.org/problem?id=1753 /* 这题几乎和POJ 2965一样,DFS函数都不用修改 只要修改一下change规则... 注意:是否初始已经ok了要先判断 */ #include <cstdio> #include <iostream> #include <algorithm> #include <cstring> #include <cmath> #include <string> #i…