玉米田Corn Fields

#include <cstdio>
#include <cmath>
#include <cstring>
#include <algorithm>
using namespace std;
#define ll long long
#define re register
const int mod=1e8;
void read(int &a)
{
    a=0;
    int d=1;
    char ch;
    while(ch=getchar(),ch>‘9‘||ch<‘0‘)
        if(ch==‘-‘)
            d=-1;
    a=ch^48;
    while(ch=getchar(),ch>=‘0‘&&ch<=‘9‘)
        a=(a<<3)+(a<<1)+(ch^48);
    a*=d;
}
int cnt,sta[505],f[15][1<<12+1],st[505];
inline bool solve(int x){return x&(x>>1);}
int main()
{
    int n,m;
    read(n);
    read(m);
    for(re int i=1;i<=n;i++)
        for(re int j=1;j<=m;j++)
        {
            int x;
            read(x);
            if(!x)
                st[i]|=1<<(m-j);
        }
    int h=(1<<m)-1;
    for(re int i=0;i<=h;i++)
    {
        if(solve(i))
            continue;
        sta[++cnt]=i;
    }
    for(re int i=1;i<=cnt;i++)
    {
        if(st[1]&sta[i])
            continue;
        f[1][i]=1;
    }
    for(re int i=2;i<=n;i++)
        for(re int j=1;j<=cnt;j++)
        {
            int last=sta[j];
            if(last&st[i-1])
                continue;
            for(re int k=1;k<=cnt;k++)
            {
                int now=sta[k];
                if(now&st[i])
                    continue;
                if(now&last)
                    continue;
                (f[i][k]+=f[i-1][j])%=mod;
            }
        }
    int ans=0;
    for(re int i=1;i<=cnt;i++)
        (ans+=f[n][i])%=mod;
    printf("%d",ans);
    return 0;
}