64分dfs求调
查看原帖
64分dfs求调
750746
Lmh1128楼主2024/10/21 09:45
#include<iostream>
using namespace std;
long long n,vis[1005][1005],maxa=-100000,maxb=1;
char a[1005][1005];
struct node
{
	long long  a=0,b=0;
}dis[1005][1005];
node dfs(int x,int y)
{
	if(a[x][y]!='#'){node a;a.a=0;a.b=1;return a;}
	node qwq;
	qwq.a=0;
	qwq.b=0;
	if(vis[x][y]==1)return qwq;
	vis[x][y]=1;
	node a,b;
	a.a=1;
	b=dfs(x+1,y);
	a.a+=b.a;
	a.b+=b.b;
	b=dfs(x-1,y);
	a.a+=b.a;
	a.b+=b.b;
	b=dfs(x,y+1);
	a.a+=b.a;
	a.b+=b.b;
	b=dfs(x,y-1);
	a.a+=b.a;
	a.b+=b.b;
	return a;
}
int main()
{
	cin>>n;
	for(int i=1;i<=n;i++)for(int j=1;j<=n;j++)cin>>a[i][j];
	for(int i=1;i<=n;i++)for(int j=1;j<=n;j++)if(!vis[i][j]&&a[i][j]=='#'){node zzz=dfs(i,j);if(zzz.a==0||zzz.b==0)continue;if(zzz.a*maxb>zzz.b*maxa){maxa=zzz.a;maxb=zzz.b;}if(zzz.a*maxb==zzz.b*maxa&&zzz.b<maxb){maxa=zzz.a;maxb=zzz.b;}}
	cout<<maxa<<" "<<maxb;
} 
2024/10/21 09:45
加载中...