delete pics to save space

7.1952.cpp

@@ -0,0 +1,38 @@
+#include<cstdio>
+#include<cstring>
+#include<algorithm>
+using namespace std;
+const int maxn=5005;
+int n,rlen,rtot,a[maxn],len[maxn],tot[maxn],useful[maxn];
+int main()
+{
+	#ifdef local
+	freopen("pro.in","r",stdin);
+	#endif
+	while(scanf("%d",&n)==1)
+	{
+		for(int i=1;i<=n;i++) scanf("%d",&a[i]);
+		for(int i=1;i<=n;i++) len[i]=tot[i]=useful[i]=1;
+		rlen=rtot=0;
+		for(int i=1;i<=n;i++)
+		{
+			for(int j=i-1;j>=1;j--)
+			{
+				if(a[j]>a[i]&&useful[j])
+				{
+					if(len[i]==len[j]+1) tot[i]+=tot[j];
+					else if(len[i]<len[j]+1)
+					{
+						tot[i]=tot[j];
+						len[i]=len[j]+1;
+					}
+				}
+				else if(a[i]==a[j]) { if(len[i]==1) useful[i]=0; break; }
+			}
+			rlen=max(rlen,len[i]);
+		}
+		for(int i=1;i<=n;i++) if(len[i]==rlen) rtot+=tot[i];
+		printf("%d %d\n",rlen,rtot);
+	}
+	return 0;
+}