#include<bits/stdc++.h>
using namespace std;
int mapp[6][6]={0},bj[6][6]={0},n,m,t,sx,sy,fx,fy,ans=0;
void search(int x0,int y0){
	if(x0==fx&&y0==fy){ans++;return;}
	bj[x0][y0]=1;
	if(mapp[x0+1][y0]&&(!bj[x0+1][y0]))search(x0+1,y0);
	if(mapp[x0-1][y0]&&(!bj[x0-1][y0]))search(x0-1,y0);
	if(mapp[x0][y0+1]&&(!bj[x0][y0+1]))search(x0,y0+1);
	if(mapp[x0][y0-1]&&(!bj[x0][y0-1]))search(x0,y0-1);
	bj[x0][y0]=0;
	return;
}
int main(){
	cin>>n>>m>>t>>sx>>sy>>fx>>fy;
	for(int i=1;i<=n;i++)
		for(int j=1;j<=m;j++)
			mapp[i][j]=1;
	for(int i=1;i<=t;i++){
		int x,y;cin>>x>>y;
		mapp[x][y]=0;
	}
	search(sx,sy);
	cout<<ans;
	return 0;
}

为什么一直在等待编译？