oj.uz

답안 #93288

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
93288 2019-01-07T12:16:26 Z Alexa2001 Amusement Park (JOI17_amusement_park) C++17
10 / 100
 31 ms 7588 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(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;
    while(w[node] < 60) sbrb = node, node = t[node];


  //  return baga(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:122:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0; i<v[node].size(); ++i)
              ~^~~~~~~~~~~~~~~
Ioi.cpp:129:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(i=0; i<S.size(); ++i)
              ~^~~~~~~~~

Subtask #1
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 4 ms 2160 KB Wrong Answer [7]
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 5316 KB Output is correct
2 Correct 30 ms 5316 KB Output is correct
3 Correct 28 ms 5324 KB Output is correct
4 Correct 28 ms 4016 KB Output is correct
5 Correct 18 ms 4492 KB Output is correct
6 Correct 19 ms 4144 KB Output is correct
7 Correct 19 ms 4144 KB Output is correct
8 Correct 19 ms 4408 KB Output is correct
9 Runtime error 20 ms 6268 KB Execution killed with signal 11 (could be triggered by violating memory limits)
10 Halted 0 ms 0 KB -

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2288 KB Output is correct
2 Correct 4 ms 2296 KB Output is correct
3 Correct 4 ms 2168 KB Output is correct
4 Correct 6 ms 2652 KB Output is correct
5 Correct 6 ms 2700 KB Output is correct
6 Correct 6 ms 2808 KB Output is correct
7 Correct 6 ms 2572 KB Output is correct
8 Correct 6 ms 2700 KB Output is correct
9 Correct 15 ms 4784 KB Output is correct
10 Correct 14 ms 5008 KB Output is correct
11 Correct 16 ms 4784 KB Output is correct
12 Correct 5 ms 2312 KB Output is correct
13 Correct 4 ms 2160 KB Output is correct
14 Correct 4 ms 2160 KB Output is correct
15 Correct 4 ms 2176 KB Output is correct

Subtask #4
0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 28 ms 5216 KB Output is correct
2 Correct 27 ms 5188 KB Output is correct
3 Correct 31 ms 5324 KB Output is correct
4 Correct 19 ms 4148 KB Output is correct
5 Correct 19 ms 4528 KB Output is correct
6 Correct 18 ms 4272 KB Output is correct
7 Correct 18 ms 4320 KB Output is correct
8 Correct 18 ms 4204 KB Output is correct
9 Correct 19 ms 4144 KB Output is correct
10 Correct 16 ms 4164 KB Output is correct
11 Correct 18 ms 4392 KB Output is correct
12 Correct 17 ms 3984 KB Output is correct
13 Runtime error 19 ms 5604 KB Execution killed with signal 11 (could be triggered by violating memory limits)
14 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 5564 KB Output is correct
2 Runtime error 31 ms 7588 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -