简单DFS搜索
Lake Counting
Time Limit:1000MS |
|
Memory Limit:65536K |
Description
Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M (1 <= N <= 100; 1 <= M <= 100) squares. Each square contains either water ('W') or dry land ('.'). Farmer John would like to figure out how many ponds have formed in his field. A pond is a connected set of squares with water in them, where a square is considered adjacent to all eight of its neighbors.
Given a diagram of Farmer John's field, determine how many ponds he has.
Input
* Line 1: Two space-separated integers: N and M
* Lines 2..N+1: M characters per line representing one row of Farmer John's field. Each character is either 'W' or '.'. The characters do not have spaces between them.
Output
* Line 1: The number of ponds in Farmer John's field.
Sample Input
10 12
W........WW.
.WWW.....WWW
....WW...WW.
.........WW.
.........W..
..W......W..
.W.W.....WW.
W.W.W.....W.
.W.W......W.
..W.......W.
Sample Output
3
分享到:
相关推荐
poj 2386 Lake Counting.md
北大POJ1014-Dividing【DFS】【多重背包+二进制优化】 解题报告+AC代码
北大POJ1020-Anniversary Cake 解题报告+AC代码
北大POJ初级-简单搜索 解题报告+AC代码
北大POJ3733-Changing Digits【DFS+强剪枝】 解题报告+AC代码
北大POJ3373-Changing Digits【DFS+强剪枝】 解题报告+AC代码
北大POJ3009-Curling 2.0【DFS+Vector+回溯+剪枝】 解题报告+AC代码
poj 2488——dfs深度优先遍历 //给行数列数,求问能否遍历,给出字典序的一种遍历
POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类POJ分类
北大POJ1184-Smart typist【搜索与状态压缩】 解题报告+AC代码
POJ-2870 Light Up + DFS(1级DFS+1级DFS) + Python - 思维导图 链接:https://blog.csdn.net/xxdragon126/article/details/122095922?spm=1001.2014.3001.5501
北大POJ1691-Painting A Board 【拓扑+DFS】 解题报告+AC代码
简单搜索题 数独 答案 POJ 2676 也可以没事玩玩数独。
poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题报告poj 解题...
POJ第1861题源码 POJ第1861题源码 POJ第1861题源码
poj分类poj分类poj分类poj分类
北大POJ1159-Palindrome 解题报告+AC代码
poj 3414解题报告poj 3414解题报告poj 3414解题报告poj 3414解题报告
poj 1012解题报告poj 1012解题报告poj 1012解题报告poj 1012解题报告
poj 2329解题报告poj 2329解题报告poj 2329解题报告poj 2329解题报告