delete pics to save space

1.1091.cpp

@@ -0,0 +1,31 @@
+#include<cstdio>
+#include<cstring>
+#include<algorithm>
+using namespace std;
+const int maxn=105;
+const int oo=0x3f3f3f3f;
+int n,a[maxn],dp[maxn],pre[maxn],nxt[maxn];
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	scanf("%d",&n);
+	for(int i=0;i<n;i++) scanf("%d",&a[i]);
+	memset(dp,oo,sizeof(dp));
+	for(int i=0;i<n;i++)
+	{
+		*lower_bound(dp,dp+n,a[i])=a[i];
+		pre[i]=lower_bound(dp,dp+n,oo)-dp;
+	}
+	memset(dp,oo,sizeof(dp));
+	for(int i=n-1;i>=0;i--)
+	{
+		*lower_bound(dp,dp+n,a[i])=a[i];
+		nxt[i]=lower_bound(dp,dp+n,oo)-dp;
+	}
+	int res=n;
+	for(int i=0;i<n;i++) res=min(res,n-(pre[i]+nxt[i]-1));
+	printf("%d\n",res);
+	return 0;
+}