Submission #1193899

#	Time	Username	Problem	Language	Result	Execution time	Memory
1193899		steveonalex	Stray Cat (JOI20_stray)	C++20	20 / 100	46 ms	13896 KiB

Anthony

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;

#define MASK(i) (1ULL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()

ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
ll gcd(ll a, ll b){return __gcd(abs(a), abs(b));}
ll lcm(ll a, ll b){return abs(a) / gcd(a, b) * abs(b);}

ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ull mask){return __builtin_popcountll(mask);}
int ctz(ull mask){return __builtin_ctzll(mask);}
int logOf(ull mask){return 63 - __builtin_clzll(mask);}

mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}

template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }

template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }

template <class T>
    void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
        for(auto item: container) out << item << separator;
        out << finish;
    }

template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }


#include "Anthony.h"

namespace AnthonySub1{
    vector<int> solve(int N, int M, int A, int B, vector<int> U, vector<int> V){
        int n = N, m = M;
        vector<vector<int>> graph(n);
        for(int i = 0; i < m; ++i) {
            int u = U[i], v = V[i];
            graph[u].push_back(v);
            graph[v].push_back(u);
        }

        vector<int> dis(n, 1e9 + 69);
        deque<int> q; q.push_back(0);
        dis[0] = 0;
        while(q.size()){
            int u = q.front(); q.pop_front();
            for(int v: graph[u]) {
                if (minimize(dis[v], dis[u] + 1))
                    q.push_back(v);
            }
        }

        vector<int> ans;
        for(int i = 0; i < m; ++i) {
            int u = U[i], v = V[i];
            if (dis[u] > dis[v]) swap(u, v);
            ans.push_back(dis[u] % 3);
        }
        return ans;
    }
}
namespace AnthonySub2{
    const int N = 2e4 + 69;
    vector<int> graph[N];
    int h[N], color[N];
    string s = "001011";

    void dfs(int u, int p, int m){
        vector<int> child;
        for(int v: graph[u]) if (v != p) child.push_back(v);
        if ((int)child.size() == 0) return;
        if ((int)child.size() > 1){
            for(int v: child) {
                h[v] = h[u] + 1;
                color[v] = color[u] ^ 1;
                dfs(v, u, -1);
            }
        }   
        else{
            int v = child[0];
            if (m == -1) {
                if (color[u] == 0) m = 1;
                else m = 0;
            }
            h[v] = h[u] + 1;
            color[v] = s[m] - '0';
            dfs(v, u, (m + 1) % 6);
        }
    }
    vector<int> solve(int N, int M, int A, int B, vector<int> U, vector<int> V){
        int n = N, m = M;
        for(int i = 0; i < m; ++i) {
            int u = U[i], v = V[i];
            graph[u].push_back(v);
            graph[v].push_back(u);
        }
        dfs(0, 0, -1);
        vector<int> ans;
        for(int i = 0; i < m; ++i){
            int u = U[i], v = V[i];
            if (h[u] > h[v]) swap(u, v);
            ans.push_back(color[v]);
        }
        return ans;
    }
}

vector<int> Mark(int N, int M, int A, int B, vector<int> U, vector<int> V){
    if (A >= 3) return AnthonySub1::solve(N, M, A, B, U, V);
    return AnthonySub2::solve(N, M, A, B, U, V);
}


// int main(void){
//     ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);

//     return 0;
// }

Catherine

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;

#define MASK(i) (1ULL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()


#include "Catherine.h"

int current_subtask = 0;

void Init(int A, int B){
    if (A >= 3) current_subtask = 1;
    else current_subtask = 2;
}

namespace CatherineSub1{
    int solve(vector<int> y){
        for(int i = 0; i < 3; ++i) {
            if (y[i] > 0 && y[(i + 2) % 3] == 0)
                return i;
        }
        return -1;
    }
}

namespace CatherineSub2{
    int last_edge = -1;
    int correct_direction_found = 0;
    string s;
    string pattern = "001011";

    bool check_pattern(string s){
        for(int i = 0; i < 6; ++i){
            reverse(1 + ALL(s)); reverse(ALL(s));
            if (s == pattern) return true;
        }
        return false;
    }
    int solve_internal(vector<int> y){
        int mi = min_element(ALL(y)) - y.begin(), ma = max_element(ALL(y)) - y.begin();
        int deg = y[0] + y[1] + (last_edge != -1);
        if (last_edge == -1){ // first time running
            if (deg == 1){
                correct_direction_found = 1;
                return ma;
            }
            else if (deg > 2){
                correct_direction_found = 1;
                return mi;
            }
            else{
                for(int i = 0; i <= 1; ++i) while(y[i]--)
                    s.push_back('0' + i);
                return s[1] - '0';
            }
        }
        else{
            if (correct_direction_found){
                if (deg == 1){
                    assert(false); // this cant happen
                    return ma;
                }
                else if (deg > 2){
                    y[last_edge]++;
                    mi = min_element(ALL(y)) - y.begin();
                    if (y[mi] == 0) assert(false);
                    return mi;
                }
                else{
                    return ma;
                }
            }
            else{
                if (deg == 1){
                    correct_direction_found = 1;
                    return -1;
                }
                else if (deg > 2){
                    correct_direction_found = 1;
                    y[last_edge]++;
                    mi = min_element(ALL(y)) - y.begin();
                    if (y[mi] == 0) assert(false);
                    return mi;
                }
                else{
                    s.push_back(ma + '0');
                    if (s.size() == 6){
                        if (check_pattern(s)){
                            correct_direction_found = true;
                            return -1;
                        }
                        else{
                            correct_direction_found = true;
                            return ma;
                        }
                    }
                    return ma;
                }
            }
        }
    }


    int solve(vector<int> y){ // wrapper
        int ans = solve_internal(y);
        if (ans != -1) last_edge = ans;
        return ans;
    }
}

int Move(vector<int> y){
    if (current_subtask == 1) return CatherineSub1::solve(y);
    return CatherineSub2::solve(y);
}


// int main(void){
//     ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);

//     return 0;
// }

• Subtask 1: 2 / 2
• Subtask 2: 2 / 2
• Subtask 3: 2 / 2
• Subtask 4: 9 / 9
• Subtask 5: 5 / 5
• Subtask 6: 0 / 71
• Subtask 7: 0 / 9