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翻转问题开关问题 poj 3279 fliptile
题目： https://vjudge.net/problem/POJ-3279 参考的题解： POJ-3279 经典翻转问题_越努力越幸运—liupu-CSDN博客 翻转吧！POJ 3279! - 知乎 (zhihu.com) 思路：把第一排的01串给枚举出来（直接按照字典序来） 从第二排开始把每种情况用b存下来 检查每种情况最后一排有没有黑色 如果全白从487-3279（POJ1002）
Businesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word or phrase. For example, you can call the University of Waterloo by dialing the memorable TUT-GLOP. Sometimes only part487-3279（有问题）
Businesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word or phrase. For example, you can call the University of Waterloo by dialing the memorable TUT-GLOP. Sometimes only part oFliptile POJ - 3279
Farmer John knows that an intellectually satisfied cow is a happy cow who will give more milk. He has arranged a brainy activity for cows in which they manipulate an M × N grid (1 ≤ M ≤ 15; 1 ≤ N ≤ 15) of square tiles, each of which is colored blacPOJ-3279 Fliptile
D - Fliptile (POJ - 3279) using namespace std; typedef long long ll; const int inf = 0x3f3f3f3f; const int N = 15+5; int b[N][N] = {{0}}, c[N][N] = {{0}}, a[N][N] = {{0}}; int n, m, ans = inf; int dx[]= { 1, -1, 0, 0, 0}; int dy[]= { 0, 0, 1, -1POJ - 3279
http://poj.org/problem?id=3279 #include <iostream>#include <stdio.h>#include <queue>#include <string.h>#include <math.h>using namespace std; #define INF 300int dx[] = {-1,0,0,0,1};int dy[] = {0,1,0,-1,0}; int map[15][15],fl