delete pics to save space

1.1005.cpp

@@ -0,0 +1,43 @@
+#include<cstdio>
+#include<cstring>
+#include<algorithm>
+using namespace std;
+typedef __int128 LLL;
+const int maxn=81;
+int n,m;
+int a[maxn];
+LLL res,p[maxn],val[maxn][maxn];
+bool vis[maxn][maxn];
+LLL dp(int L,int R)
+{
+	LLL &res=val[L][R];
+	if(vis[L][R]) return res;
+	int k=m-(R-L); vis[L][R]=true;
+	if(R-L+1>=2) res=max(a[L]*p[k]+dp(L+1,R),dp(L,R-1)+a[R]*p[k]);
+	else res=a[L]*p[k];
+	return res;
+}
+void print(LLL x)
+{
+	if(!x) return;
+	print(x/10);
+	putchar(x%10+'0');
+}
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	scanf("%d%d",&n,&m);
+	p[0]=1;
+	for(int i=1;i<=m;i++) p[i]=p[i-1]*2;
+	for(int i=1;i<=n;i++)
+	{
+		for(int j=1;j<=m;j++) scanf("%d",&a[j]);
+		memset(vis,0,sizeof(vis));
+		res+=dp(1,m);
+	}
+	if(!res) puts("0");
+	else print(res),puts("");
+	return 0;
+}