delete pics to save space

1.4363.cpp

@@ -0,0 +1,77 @@
+#include<cstdio>
+#include<map>
+using namespace std;
+#define For(i,a,b) for(int i=a;i<=b;i++)
+typedef long long ST;
+const int maxn=15,base=12;
+const int oo=1e9+7;
+map<ST,int> mp;
+int n,m,a[maxn][maxn],b[maxn][maxn];
+int lbp[maxn];
+inline ST zip()
+{
+	ST res=0;
+	For(i,1,n) res=res*base+lbp[i];
+	return res;
+}
+inline void unzip(ST t) { for(int i=n;i>=1;i--) lbp[i]=t%base,t/=base; }
+inline int getnxt()
+{
+	int res=0;
+	For(i,1,n) res+=lbp[i];
+	return res&1;
+}
+//inline int dfs(ST st,int player,int alpha,int beta)
+//{
+//	if(mp.count(st)) return mp[st];
+//	unzip(st);
+//	alpha=-oo; beta=oo;
+//	For(i,1,n)
+//		if(lbp[i-1]>lbp[i])
+//		{
+//			++lbp[i];
+//			ST h=zip();
+//			if(!player) alpha=max(alpha,dfs(h,player^1,alpha,beta)+a[i][lbp[i]]);
+//			else beta=min(beta,dfs(h,player^1,alpha,beta)-b[i][lbp[i]]);
+//			--lbp[i];
+//			if(beta<=alpha) break;
+//		}
+//	return mp[st]=(!player)?alpha:beta;
+//}
+int dfs(ST st,int player)
+{
+	if(mp.count(st)) return mp[st];
+	unzip(st);
+	int res=(!player)?-oo:oo;
+	For(i,1,n)
+		if(lbp[i-1]>lbp[i])
+		{
+			++lbp[i];
+			ST nt=zip();
+			if(!player) res=max(res,dfs(nt,player^1)+a[i][lbp[i]]);
+			else res=min(res,dfs(nt,player^1)-b[i][lbp[i]]);
+			--lbp[i];
+		}
+	return mp[st]=res;
+}
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif 
+	scanf("%d%d",&n,&m); lbp[0]=m;
+	For(i,1,n) For(j,1,m) scanf("%d",&a[i][j]);
+	For(i,1,n) For(j,1,m) scanf("%d",&b[i][j]);
+	For(i,1,n) lbp[i]=m;
+	ST full=zip(); mp[full]=0;
+//	printf("%d\n",dfs(0,0,-oo,+oo));
+	printf("%d\n",dfs(0,0));
+	return 0;
+}
+/*
+2 3
+4 2 2 
+1 5 3 
+1 5 3 
+4 3 3 
+*/