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답안 #93346

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
93346 2019-01-07T16:33:36 Z Alexa2001 Amusement Park (JOI17_amusement_park) C++17
83 / 100
 30 ms 5464 KB 
#include "Joi.h"
#include <bits/stdc++.h>

typedef long long ll;
const int Nmax = 30005;
using namespace std;

static bool used[Nmax];
static vector<int> v[Nmax];
static int bit, w[Nmax], t[Nmax];
static ll TO;

static void dfs_sel_edges(int node)
{
    used[node] = 1;
    w[node] = 1;

    for(auto it : v[node])
        if(!used[it])
        {
            t[it] = node;
            dfs_sel_edges(it);
            w[node] += w[it];
        }
}

static void dfs(int node)
{
    MessageBoard(node, (TO >> bit) & 1);
    for(auto it : v[node])
        {
            bit = (bit+1) % 60;
            dfs(it);
        }
}

static bool cmp(int a, int b)
{
    return w[a] < w[b];
}

void Joi(int N, int M, int A[], int B[], ll X, int _T)
{
    int i; TO = X;
    for(i=0; i<M; ++i)
    {
        v[A[i]].push_back(B[i]);
        v[B[i]].push_back(A[i]);
    }

    t[0] = -1;
    dfs_sel_edges(0);

    vector<int> good;
    for(i=0; i<N; ++i)
    {
        good.clear();
        for(auto it : v[i])
            if(t[it] == i) good.push_back(it);
        v[i] = good;
    }

    for(i=0; i<N; ++i)
        sort(v[i].begin(), v[i].end(), cmp);

    bit = 0;
    dfs(0);
}

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

typedef long long ll;
const int Nmax = 30005;
const ll AllBits = (1LL << 60) - 1;
using namespace std;

static bool used[Nmax], to_visit[Nmax];
static vector<int> v[Nmax];
static int bit, w[Nmax], t[Nmax], In[Nmax], ord[Nmax], tip[Nmax], tmp, Special;

ll Act, Mask;

static void dfs_sel_edges(int node)
{
    used[node] = 1;
    w[node] = 1;

    for(auto it : v[node])
        if(!used[it])
        {
            t[it] = node;
            dfs_sel_edges(it);
            w[node] += w[it];
        }
}

static void dfs(int node)
{
    tip[node] = bit;
    In[node] = ++tmp;
    ord[tmp] = node;

    for(auto it : v[node])
        {
            bit = (bit+1) % 60;
            dfs(it);
            ord[++tmp] = node;
        }
}

bool cmp(int a, int b)
{
    return w[a] < w[b];
}

static void go(int node)
{
    to_visit[node] = 0;
    for(auto it : v[node])
        if(to_visit[it])
        {
            Act |= (1LL<<tip[it]) * Move(it);
            go(it);
            Move(node);
        }
    if(node != 0 && to_visit[t[node]])
    {
        Act |= (1LL<<tip[t[node]]) * Move(t[node]);
        go(t[node]);
    }
}

static ll baga(int node)
{
    int i;
    for(i=In[node]; (!to_visit[Special] || Mask != AllBits) && i <= tmp; ++i)
        to_visit[ord[i]] = 1, Mask |= (1LL << tip[ord[i]]);

  ///  assert(to_visit[Special] && Mask == AllBits);

    go(Special);
    return Act;
}

ll Ioi(int N, int M, int A[], int B[], int P, int V, int _T)
{
    Special = P;

    int i;
    for(i=0; i<M; ++i)
    {
        v[A[i]].push_back(B[i]);
        v[B[i]].push_back(A[i]);
    }

    dfs_sel_edges(0);

    vector<int> good;
    for(i=0; i<N; ++i)
    {
        good.clear();
        for(auto it : v[i])
            if(it && t[it] == i) good.push_back(it);
        v[i] = good;
    }

    for(i=0; i<N; ++i)
        sort(v[i].begin(), v[i].end(), cmp);

    bit = 0;
    dfs(0);

    Mask = (1LL << tip[P]);
    Act = V * (1LL << tip[P]);


    int node = P, sbrb = -1;
    while(w[node] < 60) sbrb = node, node = t[node];


  //  return baga(node);

    if(node == P) return baga(P);
    assert(sbrb != -1);

    vector<int> S;
    bool ok = 0; int T = 0;

    for(i=0; i<v[node].size(); ++i)
        if(v[node][i] == sbrb) ok = 1;
            else if(!ok) S.push_back(w[v[node][i]]);
                else T += w[v[node][i]];

    for(i=(int)S.size()-2; i>=0; --i) S[i] += S[i+1];

    for(i=0; i<S.size(); ++i)
        if(S[i] + w[sbrb] <= 60 && S[i] + w[sbrb] + T >= 60)
            return baga(v[node][i]);

    if(w[sbrb] <= 60 && w[sbrb] + T >= 60) return baga(sbrb);

  ///  assert(T == 0);

    for(i=S.size()-1; i>=0; --i)
        if(S[i] + w[sbrb] >= 60) return baga(v[node][i]);

    return baga(node);
}

Compilation message

Ioi.cpp: In function 'll Ioi(int, int, int*, int*, int, int, int)':
Ioi.cpp:121:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0; i<v[node].size(); ++i)
              ~^~~~~~~~~~~~~~~
Ioi.cpp:128:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0; i<S.size(); ++i)
              ~^~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 2304 KB Output is correct
2 Correct 4 ms 2160 KB Output is correct
3 Correct 6 ms 2296 KB Output is correct
4 Correct 6 ms 2168 KB Output is correct
5 Correct 5 ms 2172 KB Output is correct
6 Correct 6 ms 2168 KB Output is correct
7 Correct 6 ms 2304 KB Output is correct
8 Correct 4 ms 2168 KB Output is correct
9 Correct 4 ms 2428 KB Output is correct
10 Correct 5 ms 2324 KB Output is correct
11 Correct 8 ms 2704 KB Output is correct
12 Correct 4 ms 2172 KB Output is correct
13 Correct 5 ms 2428 KB Output is correct
14 Correct 4 ms 2168 KB Output is correct
15 Correct 5 ms 2300 KB Output is correct
16 Correct 5 ms 2172 KB Output is correct
17 Correct 4 ms 2164 KB Output is correct
18 Correct 6 ms 2300 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 5316 KB Output is correct
2 Correct 30 ms 5316 KB Output is correct
3 Correct 30 ms 5432 KB Output is correct
4 Correct 19 ms 4016 KB Output is correct
5 Correct 19 ms 4452 KB Output is correct
6 Correct 19 ms 4388 KB Output is correct
7 Correct 19 ms 4280 KB Output is correct
8 Correct 19 ms 4348 KB Output is correct
9 Correct 17 ms 4616 KB Output is correct
10 Correct 16 ms 4516 KB Output is correct
11 Correct 17 ms 4280 KB Output is correct
12 Correct 16 ms 3744 KB Output is correct
13 Correct 16 ms 3780 KB Output is correct
14 Correct 16 ms 3912 KB Output is correct
15 Correct 18 ms 3888 KB Output is correct
16 Correct 18 ms 4160 KB Output is correct
17 Correct 18 ms 4140 KB Output is correct
18 Correct 17 ms 4140 KB Output is correct
19 Correct 17 ms 4148 KB Output is correct
20 Correct 14 ms 4408 KB Output is correct
21 Correct 15 ms 4448 KB Output is correct
22 Correct 27 ms 4168 KB Output is correct
23 Correct 19 ms 4484 KB Output is correct
24 Correct 18 ms 4280 KB Output is correct
25 Correct 19 ms 4280 KB Output is correct
26 Correct 19 ms 4480 KB Output is correct
27 Correct 18 ms 4272 KB Output is correct
28 Correct 19 ms 4504 KB Output is correct
29 Correct 17 ms 4136 KB Output is correct
30 Correct 17 ms 4136 KB Output is correct
31 Correct 4 ms 2168 KB Output is correct
32 Correct 4 ms 2200 KB Output is correct
33 Correct 5 ms 2300 KB Output is correct
34 Correct 4 ms 2288 KB Output is correct
35 Correct 4 ms 2296 KB Output is correct
36 Correct 5 ms 2160 KB Output is correct
37 Correct 4 ms 2172 KB Output is correct
38 Correct 4 ms 2164 KB Output is correct
39 Correct 5 ms 2140 KB Output is correct
40 Correct 4 ms 2168 KB Output is correct
41 Correct 4 ms 2168 KB Output is correct
42 Correct 4 ms 2176 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 2160 KB Output is correct
2 Correct 4 ms 2160 KB Output is correct
3 Correct 4 ms 2160 KB Output is correct
4 Correct 6 ms 2700 KB Output is correct
5 Correct 6 ms 2808 KB Output is correct
6 Correct 6 ms 2712 KB Output is correct
7 Correct 6 ms 2812 KB Output is correct
8 Correct 6 ms 2656 KB Output is correct
9 Correct 14 ms 4852 KB Output is correct
10 Correct 15 ms 4912 KB Output is correct
11 Correct 15 ms 5008 KB Output is correct
12 Correct 4 ms 2164 KB Output is correct
13 Correct 4 ms 2168 KB Output is correct
14 Correct 5 ms 2160 KB Output is correct
15 Correct 4 ms 2168 KB Output is correct

Subtask #4
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 5408 KB Output is correct
2 Correct 30 ms 5440 KB Output is correct
3 Correct 30 ms 5464 KB Output is correct
4 Correct 19 ms 4024 KB Output is correct
5 Correct 19 ms 4596 KB Output is correct
6 Correct 19 ms 4352 KB Output is correct
7 Correct 19 ms 4400 KB Output is correct
8 Correct 19 ms 4056 KB Output is correct
9 Correct 19 ms 4412 KB Output is correct
10 Correct 18 ms 4160 KB Output is correct
11 Correct 17 ms 4392 KB Output is correct
12 Correct 17 ms 3752 KB Output is correct
13 Correct 17 ms 3744 KB Output is correct
14 Correct 17 ms 3880 KB Output is correct
15 Correct 19 ms 4016 KB Output is correct
16 Correct 19 ms 3912 KB Output is correct
17 Correct 19 ms 4016 KB Output is correct
18 Correct 19 ms 4024 KB Output is correct
19 Correct 19 ms 3888 KB Output is correct
20 Correct 15 ms 4464 KB Output is correct
21 Correct 15 ms 4408 KB Output is correct
22 Correct 19 ms 4280 KB Output is correct
23 Correct 19 ms 4280 KB Output is correct
24 Correct 19 ms 4144 KB Output is correct
25 Correct 19 ms 4280 KB Output is correct
26 Correct 19 ms 4496 KB Output is correct
27 Correct 19 ms 4476 KB Output is correct
28 Correct 18 ms 4272 KB Output is correct
29 Correct 17 ms 4180 KB Output is correct
30 Correct 18 ms 4264 KB Output is correct

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 5324 KB Output is correct
2 Correct 28 ms 5316 KB Output is correct
3 Correct 28 ms 5324 KB Output is correct
4 Correct 18 ms 3888 KB Output is correct
5 Correct 19 ms 4924 KB Output is correct
6 Correct 19 ms 4408 KB Output is correct
7 Correct 19 ms 4168 KB Output is correct
8 Correct 19 ms 4380 KB Output is correct
9 Correct 19 ms 4400 KB Output is correct
10 Correct 17 ms 4372 KB Output is correct
11 Correct 16 ms 4144 KB Output is correct
12 Correct 17 ms 3876 KB Output is correct
13 Correct 17 ms 3808 KB Output is correct
14 Correct 17 ms 3940 KB Output is correct
15 Correct 20 ms 3884 KB Output is correct
16 Correct 17 ms 3888 KB Output is correct
17 Correct 19 ms 3892 KB Output is correct
18 Correct 18 ms 4140 KB Output is correct
19 Correct 18 ms 3888 KB Output is correct
20 Correct 15 ms 4512 KB Output is correct
21 Correct 14 ms 4400 KB Output is correct
22 Correct 19 ms 4144 KB Output is correct
23 Correct 18 ms 4372 KB Output is correct
24 Correct 18 ms 4144 KB Output is correct
25 Correct 19 ms 4152 KB Output is correct
26 Correct 19 ms 4152 KB Output is correct
27 Correct 19 ms 4272 KB Output is correct
28 Correct 19 ms 4328 KB Output is correct
29 Correct 19 ms 4264 KB Output is correct
30 Correct 18 ms 4156 KB Output is correct
31 Correct 5 ms 2160 KB Output is correct
32 Correct 5 ms 2288 KB Output is correct
33 Correct 4 ms 2164 KB Output is correct
34 Incorrect 6 ms 2168 KB Output isn't correct
35 Halted 0 ms 0 KB -