delete pics to save space

7.1964.cpp

@@ -0,0 +1,41 @@
+#include<iostream>
+#include<algorithm>
+using namespace std;
+const int maxn=1005;
+int T,n,m,a[maxn][maxn],h[maxn],w[maxn],cnt,res; char x;
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	ios::sync_with_stdio(0);
+	cin>>T;
+	while(T-->0)
+	{
+		cin>>n>>m;
+		for(int i=1;i<=n;i++) for(int j=1;j<=m;j++)
+		{
+			cin>>x;
+			if(x=='F') a[i][j]=a[i-1][j]+1;
+			else a[i][j]=0;
+		}
+		res=0;
+		for(int i=1;i<=n;i++)
+		{
+			cnt=0;
+			for(int j=1;j<=m+1;j++)
+			{
+				int wid=0;
+				while(cnt&&h[cnt-1]>=a[i][j])
+				{
+					wid+=w[cnt-1];
+					res=max(res,wid*h[cnt-1]);
+					cnt--;
+				}
+				h[cnt]=a[i][j]; w[cnt]=wid+1; cnt++;
+			}
+		}
+		cout<<res*3<<endl;
+	}
+	return 0;
+}