delete pics to save space

history_source/挑战程序设计竞赛/2.1.4.2.cpp

@@ -0,0 +1,41 @@
+#include<cstdio>
+int xx,yy;
+char field[105][105];
+void dfs(int x,int y)
+{
+	field[x][y]='.';
+	int dx,dy,nx,ny;
+	for(dx=-1;dx<=1;dx++)
+		for(dy=-1;dy<=1;dy++)
+		{
+			nx=x+dx,ny=y+dy;
+			if(0<=nx&&nx<xx&&0<=ny&&ny<yy&&field[nx][ny]=='W') dfs(nx,ny);
+		}
+}
+void solve()
+{
+	int res=0,i,j;
+	for(i=0;i<yy;i++)
+		for(j=0;j<xx;j++)
+			if(field[j][i]=='W')
+			{
+				dfs(j,i);
+				res++;
+			}
+	printf("%d\n",res);
+}
+void init()
+{
+	scanf("%d%d",&yy,&xx);
+	for(int i=0;i<yy;i++)
+	{
+		getchar();
+		for(int j=0;j<xx;j++) field[j][i]=getchar();
+	}
+}
+int main()
+{
+	init();
+	solve();
+	return 0;
+}