delete pics to save space

7.3254.cpp

@@ -0,0 +1,43 @@
+#include<cstdio>
+#include<cstring>
+#include<algorithm>
+using namespace std;
+const int mod=100000000;
+int n,m,can[13],jc[1<<12],cnt,tmp[1<<13],f[13][1<<12];
+int main()
+{
+	#ifdef local
+	freopen("pro.in","r",stdin);
+	#endif
+	scanf("%d%d",&n,&m);
+	for(int i=1;i<=n;i++)
+	{
+		int st=0;
+		for(int j=0;j<m;j++)
+		{
+			int x; scanf("%d",&x);
+			st=(st<<1)|x;
+		}
+		can[i]=st;
+	}
+	can[0]=(1<<m)-1;
+	tmp[0]=1;
+	for(int i=0;i<(1<<m);i++)
+	{
+		if((i<<1)<(1<<m)) tmp[i<<1]=tmp[i];
+		if((i&1)==0&&(i<<1)<(1<<m)) tmp[i<<1|1]=tmp[i];
+	}
+	for(int i=0;i<(1<<m);i++) if(tmp[i]) jc[cnt++]=i;
+	f[0][0]=1;
+	for(int i=1;i<=n;i++)
+		for(int j=0;j<cnt;j++)
+		{
+			int st=jc[j];
+			if((st&can[i])!=st) continue;
+			for(int k=0;k<cnt;k++) if((jc[k]&st)==0&&(jc[k]&can[i-1])==jc[k]) f[i][st]=(f[i][st]+f[i-1][jc[k]])%mod;
+		}
+	int res=0;
+	for(int i=0;i<cnt;i++) res=(res+f[n][jc[i]])%mod;
+	printf("%d\n",res);
+	return 0;
+}