Submission #1169616

#	Time	Username	Problem	Language	Result	Execution time	Memory
1169616		shiomusubi496	Amusement Park (JOI17_amusement_park)	C++20	0 / 100	13 ms	1372 KiB

Joi

#include "Joi.h"
#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
#define rep2(i, a, b) for (int i = (int)(a); i < (int)(b); ++i)
#define rrep(i, n) for (int i = (int)(n) - 1; i >= 0; --i)
#define rrep2(i, a, b) for (int i = (int)(b) - 1; i >= (int)(a); --i)
#define all(v) begin(v), end(v)
#define rall(v) rbegin(v), rend(v)

using namespace std;

namespace {

using ll = long long;
using PLL = pair<ll, ll>;

template<class T, class U> bool chmin(T& a, const U& b) { return a > b ? a = b, true : false; }
template<class T, class U> bool chmax(T& a, const U& b) { return a < b ? a = b, true : false; }

constexpr ll inf = 1e18;

class UnionFind {
    vector<int> par;

public:
    UnionFind(int n) : par(n, -1) {}
    int find(int x) { return par[x] < 0 ? x : par[x] = find(par[x]); }
    bool merge(int x, int y) {
        x = find(x); y = find(y);
        if (x == y) return false;
        if (par[x] > par[y]) swap(x, y);
        par[x] += par[y];
        par[y] = x;
        return true;
    }
};

}

void Joi(int N, int M, int A[], int B[], long long X, int T) {
    vector<vector<int>> G(N);
    {
        UnionFind uf(N);
        rep (i, M) {
            if (!uf.merge(A[i], B[i])) continue;
            G[A[i]].push_back(B[i]);
            G[B[i]].push_back(A[i]);
        }
    }
    vector<int> ord(N);
    vector<int> memo(N);
    {
        int cnt = 0;
        auto dfs = [&](auto&& self, int v, int p, int d) -> void {
            ord[v] = cnt++;
            if (ord[v] < 60) memo[v] = ord[v];
            else {
                ++d;
                memo[v] = (60 - d % 60) % 60;
            }
            for (auto e : G[v]) if (e != p) self(self, e, v, d);
        };
        dfs(dfs, 0, -1, 0);
    }
    rep (i, N) MessageBoard(i, X >> memo[i] & 1);
}

Ioi

#include "Ioi.h"
#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
#define rep2(i, a, b) for (int i = (int)(a); i < (int)(b); ++i)
#define rrep(i, n) for (int i = (int)(n) - 1; i >= 0; --i)
#define rrep2(i, a, b) for (int i = (int)(b) - 1; i >= (int)(a); --i)
#define all(v) begin(v), end(v)
#define rall(v) rbegin(v), rend(v)

using namespace std;

namespace {

using ll = long long;
using PLL = pair<ll, ll>;

template<class T, class U> bool chmin(T& a, const U& b) { return a > b ? a = b, true : false; }
template<class T, class U> bool chmax(T& a, const U& b) { return a < b ? a = b, true : false; }

constexpr ll inf = 1e18;

class UnionFind {
    vector<int> par;

public:
    UnionFind(int n) : par(n, -1) {}
    int find(int x) { return par[x] < 0 ? x : par[x] = find(par[x]); }
    bool merge(int x, int y) {
        x = find(x); y = find(y);
        if (x == y) return false;
        if (par[x] > par[y]) swap(x, y);
        par[x] += par[y];
        par[y] = x;
        return true;
    }
};

}

long long Ioi(int N, int M, int A[], int B[], int P, int V, int T) {
    vector<vector<int>> G(N);
    {
        UnionFind uf(N);
        rep (i, M) {
            if (!uf.merge(A[i], B[i])) continue;
            G[A[i]].push_back(B[i]);
            G[B[i]].push_back(A[i]);
        }
    }
    vector<int> ord(N), par(N), dep(N);
    {
        int cnt = 0;
        auto dfs = [&](auto&& self, int v, int p, int d) -> void {
            ord[v] = cnt++;
            par[v] = p;
            if (ord[v] >= 60) ++d;
            dep[d] = d;
            for (auto e : G[v]) if (e != p) self(self, e, v, d);
        };
        dfs(dfs, 0, -1, 0);
    }
    ll X = 0, Y = 0;
    while (ord[P] >= 60) {
        int m = (60 - dep[P] % 60) % 60;
        X |= (ll)V << m;
        Y |= 1ull << m;
        if (Y == (1ull << 60) - 1) return X;
        V = Move(par[P]);
        P = par[P];
    }
    int t = 60;
    rep (i, 60) {
        if (Y >> i & 1) {
            t = i;
            break;
        }
    }
    rep2 (i, t, 60) assert(Y >> i & 1);
    while (ord[P] >= t) {
        V = Move(par[P]);
        P = par[P];
    }
    auto dfs = [&](auto&& self, int v, int p) -> void {
        X |= (ll)V << ord[v];
        for (auto e : G[v]) {
            if (e == p) continue;
            if (ord[e] >= t) continue;
            V = Move(e);
            self(self, e, v);
            V = Move(v);
        }
    };
    dfs(dfs, P, -1);
    return X;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 55
• Subtask 5: 0 / 17