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Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1799 Accepted Submission(s): 378
#include<iostream>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<string>
#include<cstdlib>
#include<algorithm>
#include<queue>
#include<vector>
#include<stack>
using namespace std;
int n,m,map[305][305],sx,sy,vis[305][305],ans,mark[305][305];
int dx[4]={0,0,1,-1};
int dy[4]={1,-1,0,0};
bool check(int x,int y)
{
if(x<0||y<0||x>=n||y>=m)
return false;
return true;
}
bool dfs(int x,int y)
{
int xx,yy;
if(x==0||y==0||x==n-1||y==m-1)
return true;
vis[x][y]=1;
for(int i=0;i<4;i++)
{
xx=x+dx[i],yy=y+dy[i];
if(!check(xx,yy)||vis[xx][yy]) continue;
vis[xx][yy]=1;
if(map[xx][yy]>0) continue;
if(dfs(xx,yy)) return true;
}
return false;
}
void bfs(int sx,int sy)
{
int xx,yy,x,y;
queue<int> q;
q.push(sx),q.push(sy);
while(!q.empty())
{
x=q.front(),q.pop();
y=q.front(),q.pop();
for(int i=0;i<4;i++)
{
xx=x+dx[i],yy=y+dy[i];
if(!check(xx,yy)) continue;
if(mark[xx][yy]) continue;
mark[xx][yy]=1;
if(vis[xx][yy])
ans+=map[xx][yy]-1;
else
{
ans+=map[xx][yy];
q.push(xx),q.push(yy);
}
}
}
}
int main()
{
while(scanf("%d%d",&n,&m)!=EOF)
{
ans=0;
memset(vis,0,sizeof(vis));
memset(mark,0,sizeof(mark));
for(int i=0;i<n;i++)
for(int j=0;j<m;j++)
{
scanf("%d",&map[i][j]);
if(map[i][j]==-1)
sx=i,sy=j;
}
if(dfs(sx,sy))
{
printf("Ali Win\n");
continue;
}
else
{
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
if(!mark[i][j])
{
if(i==0||j==0||i==n-1||j==m-1)
{
mark[i][j]=1;
if(vis[i][j])
ans+=map[i][j]-1;
else
ans+=map[i][j],bfs(i,j);
}
}
}
}
}
if(ans&1)
printf("Ali Win\n");
else
printf("Baba Win\n");
}
return 0;
}
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原文地址:http://www.cnblogs.com/a972290869/p/4355901.html