题目链接 http://poj.org/problem?id=1562 题意 输入一个m行n列的棋盘,棋盘上每个位置为'*'或者'@',求'@'的连通块有几个(连通为8连通,即上下左右,两条对角线). 思路 floodfill问题,用dfs解决. 代码 #include <iostream> #include <cstdio> #include <cstring> using namespace std; ; char grid[N][N]; int visit[N][…

Oil Deposits Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 65536/32768K (Java/Other) Total Submission(s) : 4   Accepted Submission(s) : 3 Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description The GeoSurvComp geologic s…

题目链接:Oil Deposits 解析:问有多少个"@"块.当中每一个块内的各个"@"至少通过八个方向之中的一个相邻. 直接从"@"的地方開始向相邻八个方向搜索,每搜到一个格子.就将它替换成".",一次搜索就会搜索完一个块,记录搜索的次数为答案. AC代码: #include <cstdio> #include <cstring> #include <queue> using namesp…

题意:求连通块个数. 分析:dfs. #include<cstdio> #include<cstring> #include<cstdlib> #include<cctype> #include<cmath> #include<iostream> #include<sstream> #include<iterator> #include<algorithm> #include<string&g…

UVA 572 -- Oil Deposits(DFS求连通块) 图也有DFS和BFS遍历,由于DFS更好写,所以一般用DFS寻找连通块. 下述代码用一个二重循环来找到当前格子的相邻8个格子,也可用常量数组或者写8条DFS调用. 下述算法是:种子填充(floodfill) 两种连通区域 四连通区域:从区域内一点出发,可通过上.下.左.右四个方向的移动组合,在不越出区域的前提下,能到达区域内的任意像素 八连通区域:从区域内每一像素出发,可通过八个方向,即上.下.左.右.左上.右上.左下.右下移动的…

HDU 1241  Oil Deposits L -DFS Time Limit:1000MS     Memory Limit:10000KB     64bit IO Format:%I64d & %I64u   Description The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large r…

Oil Deposits Time Limit: 2 Seconds      Memory Limit: 65536 KB The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular region of land at a time, and creates a grid th…

Oil Deposits Descriptions: The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular region of land at a time, and creates a grid that divides the land into numerous sq…

Description The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular region of land at a time, and creates a grid that divides the land into numerous square plots. It…

题目: The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvCompworkswithonelargerectangularregionoflandatatime,andcreatesagridthatdivides the land into numerous square plots. It then analyzes each plot s…