oj.uz

답안 #93272

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
93272 2019-01-07T11:50:17 Z Alexa2001 Amusement Park (JOI17_amusement_park) C++17
18 / 100
 32 ms 5444 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(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(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]);

    return baga(0);

    int node = P, sbrb;
    while(w[node] <= 60 && t[node] > 0) sbrb = node, node = t[node];


  //  if(node == P)
   //     return baga(P);



    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]);

    assert(T == 0);

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

    return baga(node);
}

Compilation message

Ioi.cpp: In function 'll Ioi(int, int, int*, int*, int, int, int)':
Ioi.cpp:123:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0; i<v[node].size(); ++i)
              ~^~~~~~~~~~~~~~~
Ioi.cpp:130:15: 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 4 ms 2168 KB Output is correct
2 Correct 4 ms 2168 KB Output is correct
3 Correct 5 ms 2164 KB Output is correct
4 Correct 4 ms 2160 KB Output is correct
5 Correct 4 ms 2172 KB Output is correct
6 Correct 4 ms 2288 KB Output is correct
7 Correct 6 ms 2420 KB Output is correct
8 Correct 4 ms 2188 KB Output is correct
9 Correct 4 ms 2416 KB Output is correct
10 Correct 4 ms 2160 KB Output is correct
11 Correct 7 ms 2464 KB Output is correct
12 Correct 4 ms 2176 KB Output is correct
13 Correct 4 ms 2164 KB Output is correct
14 Correct 4 ms 2292 KB Output is correct
15 Correct 4 ms 2192 KB Output is correct
16 Correct 4 ms 2428 KB Output is correct
17 Correct 4 ms 2300 KB Output is correct
18 Correct 14 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 31 ms 5316 KB Output is correct
3 Correct 28 ms 5444 KB Output is correct
4 Correct 20 ms 3888 KB Output is correct
5 Correct 20 ms 4456 KB Output is correct
6 Correct 20 ms 4276 KB Output is correct
7 Correct 20 ms 4284 KB Output is correct
8 Correct 20 ms 4272 KB Output is correct
9 Correct 20 ms 4400 KB Output is correct
10 Correct 17 ms 4144 KB Output is correct
11 Correct 18 ms 4144 KB Output is correct
12 Correct 18 ms 3756 KB Output is correct
13 Correct 18 ms 3744 KB Output is correct
14 Correct 18 ms 3880 KB Output is correct
15 Correct 20 ms 3888 KB Output is correct
16 Correct 20 ms 3884 KB Output is correct
17 Correct 19 ms 4024 KB Output is correct
18 Correct 20 ms 4016 KB Output is correct
19 Correct 23 ms 4024 KB Output is correct
20 Correct 15 ms 4312 KB Output is correct
21 Correct 15 ms 4464 KB Output is correct
22 Correct 22 ms 4144 KB Output is correct
23 Correct 20 ms 4408 KB Output is correct
24 Correct 19 ms 4168 KB Output is correct
25 Correct 20 ms 4144 KB Output is correct
26 Correct 20 ms 4400 KB Output is correct
27 Correct 20 ms 4280 KB Output is correct
28 Correct 20 ms 4500 KB Output is correct
29 Correct 19 ms 4000 KB Output is correct
30 Correct 19 ms 4144 KB Output is correct
31 Correct 4 ms 2160 KB Output is correct
32 Correct 4 ms 2164 KB Output is correct
33 Correct 5 ms 2164 KB Output is correct
34 Correct 4 ms 2184 KB Output is correct
35 Correct 4 ms 2168 KB Output is correct
36 Correct 4 ms 2160 KB Output is correct
37 Correct 4 ms 2160 KB Output is correct
38 Correct 4 ms 2160 KB Output is correct
39 Correct 4 ms 2160 KB Output is correct
40 Correct 4 ms 2160 KB Output is correct
41 Correct 4 ms 2160 KB Output is correct
42 Correct 4 ms 2160 KB Output is correct

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2160 KB Output is correct
2 Correct 4 ms 2288 KB Output is correct
3 Correct 4 ms 2168 KB Output is correct
4 Correct 6 ms 2792 KB Output is correct
5 Incorrect 6 ms 2580 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 32 ms 5316 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 30 ms 5444 KB Output isn't correct
2 Halted 0 ms 0 KB -