蜥蜴

#include<cstdio>
#include<iostream>
#include<cstring> 
#include<queue>
using namespace std;
const int M=9999,INF=999999999;
int deep[M];
int tot,cnt;
int r,c,u;int p[100][100]; 
char a[100][100],b;
int e[1999][1999];
int bfs(int s,int t){
    queue< int > d; 

    memset(deep,-1,sizeof(deep));
    deep[s]=0;
    d.push(s);
    while(!d.empty()){
        int x=d.front();
        d.pop();
        for(int i=1;i<=tot;i++){

            if(e[x][i]&&deep[i]==-1){
                deep[i]=deep[x]+1;
                d.push(i);
            }
        }    
    }
    return deep[t]!=-1; 
} 
int dfs(int s,int t,int f){
    if(s==t) return f;
    for(int i=1;i<=tot;i++){

        if(e[s][i]&&deep[s]+1==deep[i]){
            int d=dfs(i,t,min(e[s][i],f));
            if(d>0){
                e[s][i]-=d;
                e[i][s]+=d;
                return d;
            }
        }
    } 
    return 0;   
}
int maxflow(int s,int t){
    int flow=0;
    while(bfs(s,t)){
        while(1)
        {
            int d=dfs(s,t,INF);
        if(d==0)break;
        flow+=d;
        }

    }
    return flow;
}
int cinn()
{
    cin>>r>>c>>u;
    for(int i=1;i<=r;i++)
    for(int j=1;j<=c;j++){
        cin>>a[i][j];
        if(a[i][j]!='0'){
            tot++;p[i][j]=tot;
            e[tot][tot+1]=a[i][j]-48;tot++;
        }
    }

    for(int i=1;i<=r;i++)
    for(int j=1;j<=c;j++){
        cin>>b;
        if(b=='L'){
            cnt++;e[0][p[i][j]]=1;

        //  printf("%d ",o[0][p[i][j]*2-1]);
        } 

            if(a[i][j]>'0')
            {
                for(int k=1;k<=r;k++)
                for(int q=1;q<=c;q++)
                {
                if(a[k][q]>'0'&&(i!=k||j!=q))
                {
                if((k-i)*(k-i)+(q-j)*(q-j)<=u*u)
                e[p[i][j]+1][p[k][q]]=INF;

                }
    }
}
}
}

int goutu(){
    //int s=1;
    //int t=2;

    for(int i=1;i<=r;i++)
    for(int j=1;j<=c;j++){
        if(a[i][j]>'0')
        {
            if(i-u<1||i>r-u||j-u<1||j>c-u)
            e[p[i][j]+1][tot]=INF;

        }


    }
    return 0;



}
int main(){
    cinn();
    tot++;
    goutu();

    int d=maxflow(0,tot);
    printf("%d",cnt-d);
    return 0;
}