delete pics to save space

history_source/信息学奥赛一本通/2.9.1.6.cpp

@@ -0,0 +1,38 @@
+#include<cstdio>
+inline int max(int a,int b){return a>b?a:b;}
+int a[120][3],n,s,t,t1,t2,k,i,j,x,y;
+int main()
+{
+	scanf("%d",&n);
+	for(i=1;i<=n;i++)
+	{
+		scanf("%d",&s);
+		for(j=1;j<=s;j++) scanf("%d",&(a[j][1]));
+		t=0;
+		for(j=1;j<=s;j++)
+		{
+			for(x=1;x<=s;x++)
+			a[x][2]=1;
+			t1=0;t2=0;
+			for(x=j;x>=1;x--)
+			{
+				k=0;
+				for(y=x+1;y<=j;y++)
+					if(k<a[y][2]&&a[x][1]<a[y][1]) k=a[y][2];
+				a[x][2]+=k;
+				if(t1<a[x][2]) t1=a[x][2];
+			}
+			for(x=s;x>=j;x--)
+			{
+				k=0;
+				for(y=x+1;y<=s;y++)
+					if(k<a[y][2]&&a[x][1]>a[y][1]) k=a[y][2];
+				a[x][2]+=k;
+				if(t2<a[x][2]) t2=a[x][2];
+			}
+			t=max(max(t1,t2),t);
+		}
+		printf("%d\n",t);
+	}
+	return 0;
+}