N3. Формальный исполнитель

#include <iostream>
#include <cmath>
#include <vector>
#include <set>
#include <string>
#include <algorithm>
using namespace std;
using ll = long long;
void cv(vector <int> v){
    for (auto x: v) cout<<x<<' ';
    cout<<'\n';
}

vector <ll> dx = {-1, 1, 0, 0};
vector <ll> dy = {0,0,1,-1};
vector <ll> cmd = {2, 1, 3, 0, 3, 1};
ll sz = cmd.size();
//up, down, R, L

//перегородки
vector <pair <ll, ll> > bdX(6, {100, 100});
vector <pair <ll, ll> > bdY(6, {100, 100});

bool bnd(ll x, ll y){//bound
    return x >= 0 && x < 6 && y >= 0  && y < 6;
}

bool free(ll x, ll y, ll x1, ll y1){
    bool can = 1;
    if (x == x1){
        //cout<<"ONE\n";
        if (bdX[x].first == min(y, y1) && bdX[x].second == max(y, y1)){
            //cout<<"THREE\n";
            can = 0;
        }
    }
    else if (y == y1){
        //cout<<"TWO\n";
        if (bdY[y].first == min(x, x1) && bdY[y].second == max(x, x1)){
            //cout<<"FOUR\n";
            can = 0;
        }
    }
    //cout<<"free = "<<can<<"\n";
    return can;
}
ll ans = 0;
vector <pair <ll, ll> > good;
bool gd(ll x, ll y, ll x1, ll y1){
    bool can = 0;
    return free(x, y, x1, y1) && bnd(x1, y1);
}
bool sh = 0;
void go(ll x, ll y){
    ll x1 = x, y1 = y;
    ll cnt = 0;
    while (cnt < sz){
            //if (sh) cout<<x<<' '<<y<<'\n';
        ll dir = cmd[cnt];
        while (gd(x, y, x + dx[dir], y + dy[dir])){

            x += dx[dir];
            y += dy[dir];
        }
        cnt++;
    }
    if (x == 3 && y == 1){
        ans++;
        //good.push_back({x1, y1});
    }
    //if (sh) cout<<"\n\n";
}



int main()
{
    /*ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);*/
    bdX[0] = {0,1};
    bdX[1] = {0,1};
    bdX[2] = {2,3};
    bdX[3] = {1,2};

    bdY[1] = {3,4};
    bdY[3] = {2,3};
    bdY[5] = {2,3};

    ll x0 = 3, y0 = 1;
    for (int i = 0; i < 6;++i){
        for (int j=0;j<6;++j){
            go(i, j);
        }
    }
    cout<<"ans= "<<ans<<"\n";
    /*sh = 1;
    for (auto g: good){
        //cout<<g.first<<' '<<g.second<<'\n';
        go(g.first, g.second);
    }*/
}