```c
#include<iostream>
#include<cstdio>
#include<string>
using namespace std;
int dx[4]={0,0,1,-1};
int dy[4]={-1,1,0,0};
int map1[6][6],n,m,t,sx,sy,fx,fy,i,t1,t2,ans=0,temp[6][6];
void dfs(int x,int y)
{
if(x==fx && y==fy)
{
ans++;
return;
}
else
{
for(i=0;i<=3;i++)
{
if(temp[x+dx[i]][y+dy[i]]==0 && map1[x+dx[i]][y+dy[i]]==0)
{
temp[x][y]==1;
dfs(x+dx[i],y+dy[i]);
temp[x][y]==0;
}
}
}
}
int main()
{
cin>>n>>m>>t;
cin>>sx>>sy>>fx>>fy;
for(i=1;i<=t;i++)
{
cin>>t1>>t2;
map1[t1][t2]=1;
}
dfs(sx,sy);
cout<<ans;
return 0;
return 0;
}
```
by VioletDog @ 2019-08-17 21:29:57