CDOJ 1965 连通域统计【DFS】

【CDOJ 1965 连通域统计【DFS】】的更多相关文章

CDOJ 1965 连通域统计【DFS】

求连通域个数,简单题 #include <bits/stdc++.h> using namespace std; const int INF = 0x3f3f3f3f; typedef long long LL; ; ][]; void dfs(int x,int y) { ||x>=n||y<||y>=m||s[x][y]=='.')return; s[x][y]='.'; dfs(x,y+); dfs(x,y-); dfs(x+,y); dfs(x-,y); dfs(x+…

cdoj 574 High-level ancients dfs序+线段树

High-level ancients Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.uestc.edu.cn/#/problem/show/574 Description Love8909 is keen on the history of Kingdom ACM. He admires the heroic undertakings of Lxhgww and Haibo. Inspired by those sagas, L…

cdoj 574 High-level ancients dfs序+线段树　每个点所加权值不同

High-level ancients Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.uestc.edu.cn/#/problem/show/574 Description Love8909 is keen on the history of Kingdom ACM. He admires the heroic undertakings of Lxhgww and Haibo. Inspired by those sagas, L…

opencv实现连通域

在本文中使用图像连通域统计使用opencv中的cvFloodFill方法,可是在cvFloodFill方法中CvConnectedComp參数无法返回详细点坐标位置信息,找了些资料.给CvSeq分配空间可是还是contour内容没有值,预计是OPENCV2.00版本号不支持.假设想获取点坐标信息有两种方法:一是通过源码改写cvFloodFill函数来返回点坐标信息:二是cvFloodFill连通之后,依据返回区域统计多少个点,并统计之后对此点做标记,依次重复下一个连通区域. 下面是方法二的代…

POJ-2386.Lakecounting(DFS求连通块)

本题是一道连通块的入门题,用来练手,后续还会更新连通块的题目. 本题大意:一个n * m 的陆地上面有很多水洼,让你统计水洼的个数并输出. 本题思路:按照顺序遍历陆地,如果发现水洼就将它的八连块都进行探索,发现水洼就继续探索,直到一片大水洼都被探索完,就继续进行其他搜索,DFS. 代码: #include <cstdio> using namespace std; + ; char field[maxn][maxn]; int n, m, ans; void dfs(int u, int v)…

1013 Battle Over Cities (25分) 图的连通分量+DFS

题目 It is vitally important to have all the cities connected by highways in a war. If a city is occupied by the enemy, all the highways from/toward that city are closed. We must know immediately if we need to repair any other highways to keep the rest…

Java实现Catenyms(并查集+dfs+欧拉回路)

Description A catenym is a pair of words separated by a period such that the last letter of the first word is the same as the last letter of the second. For example, the following are catenyms: dog.gopher gopher.rat rat.tiger aloha.aloha arachnid.dog…