博客
关于我
Avoid The Lakes
阅读量:623 次
发布时间:2019-03-13

本文共 1815 字,大约阅读时间需要 6 分钟。

Avoid The Lakes

Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 131072/65536K (Java/Other)
Total Submission(s) : 190   Accepted Submission(s) : 106
Problem Description

Farmer John's farm was flooded in the most recent storm, a fact only aggravated by the information that his cows are deathly afraid of water. His insurance agency will only repay him, however, an amount depending on the size of the largest "lake" on his farm.

The farm is represented as a rectangular grid with N (1 ≤ N ≤ 100) rows and M (1 ≤ M ≤ 100) columns. Each cell in the grid is either dry or submerged, and exactlyK (1 ≤ K ≤ N × M) of the cells are submerged. As one would expect, a lake has a central cell to which other cells connect by sharing a long edge (not a corner). Any cell that shares a long edge with the central cell or shares a long edge with any connected cell becomes a connected cell and is part of the lake.

 
Input

* Line 1: Three space-separated integers: NM, and K

* Lines 2..K+1: Line i+1 describes one submerged location with two space separated integers that are its row and column: R and C

 
Output

* Line 1: The number of cells that the largest lake contains. 

 
Sample Input
3 4 53 22 23 12 31 1
 
Sample Output
4
 题解:相当于水池数目那题,只不过这个是找最大的水的个数;
代码:
1 #include
2 #include
3 int N,M,max,step; 4 int map[110][110]; 5 void dfs(int x,int y){ 6     if(!map[x][y]||x<0||x>=N||y<0||y>=M)return; 7     map[x][y]=0;step++; 8     if(step>max)max=step; 9     dfs(x+1,y);dfs(x-1,y);dfs(x,y+1),dfs(x,y-1);10 //    step--;map[x][y]=1;11     return;12 }13 int main(){14     int K,x,y;15     while(~scanf("%d%d%d",&N,&M,&K)){16         memset(map,0,sizeof(map));17         while(K--){18             scanf("%d%d",&x,&y);19             map[x-1][y-1]=1;20         }21         max=step=0;22         for(x=0;x

 

转载地址:http://wehaz.baihongyu.com/

你可能感兴趣的文章
mysql查询慢排查
查看>>
MySQL查询报错ERROR:No query specified
查看>>
mysql查询数据库储存数据的占用容量大小
查看>>
MySQL查询数据库所有表名及其注释
查看>>
MySQL查询数据表中数据记录(包括多表查询)
查看>>
MySQL查询结果排序
查看>>
MYSQL查询语句优化
查看>>
mysql查询语句能否让一个字段不显示出来_天天写order by,你知道Mysql底层执行原理吗?
查看>>
MySQL查询语句:揭秘专家秘籍,让你秒变数据库达人!
查看>>
mysql查询超时对PHP执行的影响
查看>>
mysql查询输出到excel文件_如何保存mysql查询输出到excel或.txt文件?
查看>>
mysql查询过程
查看>>
MySQL模拟Oracle序列sequence
查看>>
Mysql模糊查询like效率,以及更高效的写法
查看>>
MySQL死锁套路:一次诡异的批量插入死锁问题分析
查看>>
Mysql死锁问题Deadlock found when trying to get lock;try restarting transaction
查看>>
mysql每个数据库的最大连接数_MySQL数据库最大连接数
查看>>
Mysql流程控制结构,if函数、case结构、if结构、循环结构
查看>>
mysql添加外网访问权限
查看>>
mysql添加用户
查看>>