oj.uz

답안 #973987

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
973987 2024-05-02T14:19:34 Z steveonalex Amusement Park (JOI17_amusement_park) C++17
70 / 100
 34 ms 9796 KB 
#include <bits/stdc++.h>
#include "Joi.h"
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define MASK(i) (1LL << (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 LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ll mask){return __builtin_ctzll(mask);}
int logOf(ll mask){return __lg(mask);}
 
// mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
mt19937_64 rng(1);
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"){
        for(auto item: container) cout << item << separator;
        cout << finish;
    }
 
 
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }


// void MessageBoard(int i, int j){cout << j << ",";}

struct DSU{
    int n;
    vector<int> parent;

    DSU(int _n){
        n = _n;
        parent.resize(n);
        for(int i = 0; i<n; ++i) parent[i] = i;
    }

    int find_set(int u){return (u == parent[u]) ? u : (parent[u] = find_set(parent[u]));}
    bool same_set(int u, int v){return find_set(u) == find_set(v);}
    bool join_set(int u, int v){
        u = find_set(u), v = find_set(v);
        if (u != v){
            parent[v] = u;
            return true;
        }
        return false;
    }
};

const int N = 1e4 + 69;
vector<int> graph[N];
vector<int> ver[N];
int color[N];
int untouched_cnt;

void dfs(int u, int p){
    ver[u].push_back(u);
    for(int v: graph[u]) if (v != p){
        dfs(v, u);
        for(int i: ver[v]) ver[u].push_back(i);
        ver[v].clear();
    }
    if (ver[u].size() >= 60 && (untouched_cnt - ver[u].size() >= 60 || u == p)){
        untouched_cnt -= ver[u].size();
        for(int i = 0; i< ver[u].size(); ++i){
            color[ver[u][i]] = i % 60;
        }
        ver[u].clear();
    }
}


void Joi(int n, int m, int A[], int B[], ll X, int T) {
    vector<pair<int, int>> edging(m);
    for(int i = 0; i<m; ++i){
        edging[i] = {A[i], B[i]};
        if (edging[i].first > edging[i].second) swap(edging[i].first, edging[i].second); 
    }
    sort(ALL(edging));

    DSU mst(n);
    for(pair<int, int> i: edging){
        if (mst.join_set(i.first, i.second)){
            int u = i.first, v = i.second;
            graph[u].push_back(v);
            graph[v].push_back(u);
        }
    }

    untouched_cnt = n;
    dfs(0, 0);

    for(int i = 0; i<n; ++i) {
        MessageBoard(i, GETBIT(X, color[i]));
    }
}


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

//     int n = 150, m = 149;
//     int A[m], B[m];
//     for(int i = 0; i<m; ++i) {
//         A[i] = i;
//         B[i] = i + 1;
//     }

//     Joi(n, m, A, B, 69, 1);
 
//     return 0;
// }
#include <bits/stdc++.h>
#include "Ioi.h"
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define MASK(i) (1LL << (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 LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ll mask){return __builtin_ctzll(mask);}
int logOf(ll mask){return __lg(mask);}
 
// mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
mt19937_64 rng(1);
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"){
        for(auto item: container) cout << item << separator;
        cout << finish;
    }
 
 
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }

const int INF = 1e9 + 69;
// int tape[] = {1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};


// int Move(int v){
//     return tape[v];
// }

struct DSU{
    int n;
    vector<int> parent;

    DSU(int _n){
        n = _n;
        parent.resize(n);
        for(int i = 0; i<n; ++i) parent[i] = i;
    }

    int find_set(int u){return (u == parent[u]) ? u : (parent[u] = find_set(parent[u]));}
    bool same_set(int u, int v){return find_set(u) == find_set(v);}
    bool join_set(int u, int v){
        u = find_set(u), v = find_set(v);
        if (u != v){
            parent[v] = u;
            return true;
        }
        return false;
    }
};

const int N = 1e4 + 69;
vector<int> graph[N];
vector<int> ver[N], shit[N];
int color[N];
int untouched_cnt;

void dfs(int u, int p){
    ver[u].push_back(u);
    for(int v: graph[u]) if (v != p){
        dfs(v, u);
        for(int i: ver[v]) ver[u].push_back(i);
        ver[v].clear();
    }
    if (ver[u].size() >= 60 && (untouched_cnt - ver[u].size() >= 60 || u == p)){
        untouched_cnt -= ver[u].size();
        for(int i = 0; i< ver[u].size(); ++i){
            color[ver[u][i]] = i % 60;
        }
        shit[u] = ver[u];
        ver[u].clear();
    }
}

bool dp[N];
bool bit[60];

void go(int u, int p, int &cnt){
    for(int v: graph[u]) if (v != p){
        go(v, u, cnt);
        if (dp[v]) {
            dp[u] = 1;
            cnt++;
        }
    }
}


void bobby(int u, int p){
    for(int v: graph[u]) if (v != p && dp[v]){
        bit[color[v]] = Move(v);
        bobby(v, u);
    }
    if (u != p) Move(p);
}


ll Ioi(int n, int m, int A[], int B[], int P, int V, int T) {
    vector<pair<int, int>> edging(m);
    for(int i = 0; i<m; ++i){
        edging[i] = {A[i], B[i]};
        if (edging[i].first > edging[i].second) swap(edging[i].first, edging[i].second); 
    }
    sort(ALL(edging));

    DSU mst(n);
    for(pair<int, int> i: edging){
        if (mst.join_set(i.first, i.second)){
            int u = i.first, v = i.second;
            graph[u].push_back(v);
            graph[v].push_back(u);
        }
    }

    untouched_cnt = n;
    dfs(0, 0);

    bit[color[P]] = V;
    for(int i = 0; i<n; ++i) {
        int pos = -1;
        for(int j = 0; j < shit[i].size(); ++j) if (shit[i][j] == P) pos = j;

        if (pos == -1) continue;
        pair<int, int> best = {INF, INF};

        for(int j = 0; j + 59 < shit[i].size();++j)if (j <= pos && pos <= j + 59){
            memset(dp, 0, sizeof dp);
            for(int k = j; k <= j+59; ++k) dp[shit[i][k]] = 1;

            int edge_cnt = 0;
            go(P, P, edge_cnt);

            minimize(best, make_pair(edge_cnt, j));
        }
        int edge_cnt = 0;
        for(int k = best.second; k <= best.second+59; ++k) dp[shit[i][k]] = 1;
        go(P, P, edge_cnt);
        bobby(P, P);

        break;
    }

    ll X = 0;
    for(int i = 0; i<60; ++i) if (bit[i]) X += MASK(i);

    return X;
}


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

//     int n = 150, m = 149;
//     int A[m], B[m];
//     for(int i = 0; i<m; ++i) {
//         A[i] = i;
//         B[i] = i + 1;
//     }

//     cout << Ioi(n, m, A, B, 69, tape[69], 1) << "\n";
 
 
//     return 0;
// }

Compilation message

Joi.cpp: In function 'void dfs(int, int)':
Joi.cpp:90:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |         for(int i = 0; i< ver[u].size(); ++i){
      |                        ~^~~~~~~~~~~~~~~

Ioi.cpp: In function 'void dfs(int, int)':
Ioi.cpp:95:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |         for(int i = 0; i< ver[u].size(); ++i){
      |                        ~^~~~~~~~~~~~~~~
Ioi.cpp: In function 'll Ioi(int, int, int*, int*, int, int, int)':
Ioi.cpp:149:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  149 |         for(int j = 0; j < shit[i].size(); ++j) if (shit[i][j] == P) pos = j;
      |                        ~~^~~~~~~~~~~~~~~~
Ioi.cpp:154:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  154 |         for(int j = 0; j + 59 < shit[i].size();++j)if (j <= pos && pos <= j + 59){
      |                        ~~~~~~~^~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2064 KB Output is correct
2 Correct 2 ms 2584 KB Output is correct
3 Correct 3 ms 2076 KB Output is correct
4 Correct 3 ms 2072 KB Output is correct
5 Correct 2 ms 2068 KB Output is correct
6 Correct 2 ms 2332 KB Output is correct
7 Correct 2 ms 2084 KB Output is correct
8 Correct 2 ms 2064 KB Output is correct
9 Correct 2 ms 2076 KB Output is correct
10 Correct 2 ms 2088 KB Output is correct
11 Correct 5 ms 2404 KB Output is correct
12 Correct 2 ms 2080 KB Output is correct
13 Correct 2 ms 2076 KB Output is correct
14 Correct 2 ms 2084 KB Output is correct
15 Correct 2 ms 2080 KB Output is correct
16 Correct 2 ms 2084 KB Output is correct
17 Correct 2 ms 2076 KB Output is correct
18 Correct 3 ms 2084 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 6084 KB Output is correct
2 Correct 24 ms 5884 KB Output is correct
3 Correct 25 ms 6032 KB Output is correct
4 Correct 24 ms 4848 KB Output is correct
5 Correct 22 ms 8536 KB Output is correct
6 Correct 34 ms 6396 KB Output is correct
7 Correct 18 ms 6716 KB Output is correct
8 Correct 19 ms 6908 KB Output is correct
9 Correct 17 ms 6724 KB Output is correct
10 Correct 12 ms 4936 KB Output is correct
11 Correct 16 ms 4628 KB Output is correct
12 Correct 13 ms 4652 KB Output is correct
13 Correct 13 ms 4628 KB Output is correct
14 Correct 16 ms 4628 KB Output is correct
15 Correct 29 ms 5168 KB Output is correct
16 Correct 28 ms 5428 KB Output is correct
17 Correct 15 ms 4668 KB Output is correct
18 Correct 27 ms 4856 KB Output is correct
19 Correct 27 ms 4844 KB Output is correct
20 Correct 13 ms 7228 KB Output is correct
21 Correct 13 ms 7236 KB Output is correct
22 Correct 26 ms 6716 KB Output is correct
23 Correct 18 ms 6760 KB Output is correct
24 Correct 17 ms 6716 KB Output is correct
25 Correct 17 ms 6688 KB Output is correct
26 Correct 17 ms 6972 KB Output is correct
27 Correct 16 ms 6716 KB Output is correct
28 Correct 17 ms 6944 KB Output is correct
29 Correct 15 ms 6288 KB Output is correct
30 Correct 16 ms 6696 KB Output is correct
31 Correct 2 ms 2060 KB Output is correct
32 Correct 2 ms 2068 KB Output is correct
33 Correct 2 ms 2072 KB Output is correct
34 Correct 2 ms 2080 KB Output is correct
35 Correct 2 ms 2068 KB Output is correct
36 Correct 2 ms 2064 KB Output is correct
37 Correct 2 ms 1984 KB Output is correct
38 Correct 2 ms 2068 KB Output is correct
39 Correct 2 ms 2080 KB Output is correct
40 Correct 2 ms 2064 KB Output is correct
41 Correct 2 ms 2080 KB Output is correct
42 Correct 2 ms 2080 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2076 KB Output is correct
2 Correct 2 ms 2068 KB Output is correct
3 Correct 2 ms 2068 KB Output is correct
4 Correct 4 ms 3352 KB Output is correct
5 Correct 5 ms 3152 KB Output is correct
6 Correct 4 ms 3144 KB Output is correct
7 Correct 4 ms 3136 KB Output is correct
8 Correct 4 ms 3144 KB Output is correct
9 Correct 15 ms 9784 KB Output is correct
10 Correct 19 ms 9796 KB Output is correct
11 Correct 15 ms 9788 KB Output is correct
12 Correct 2 ms 2080 KB Output is correct
13 Correct 2 ms 2144 KB Output is correct
14 Correct 2 ms 2068 KB Output is correct
15 Correct 1 ms 2068 KB Output is correct

Subtask #4
42.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Partially correct 26 ms 5580 KB Partially correct
2 Partially correct 22 ms 5900 KB Partially correct
3 Correct 22 ms 5764 KB Output is correct
4 Partially correct 20 ms 4676 KB Partially correct
5 Correct 19 ms 8744 KB Output is correct
6 Partially correct 22 ms 6624 KB Partially correct
7 Correct 17 ms 6712 KB Output is correct
8 Correct 18 ms 6176 KB Output is correct
9 Correct 19 ms 6328 KB Output is correct
10 Correct 12 ms 4916 KB Output is correct
11 Partially correct 16 ms 4664 KB Partially correct
12 Partially correct 15 ms 4640 KB Partially correct
13 Partially correct 15 ms 4628 KB Partially correct
14 Partially correct 15 ms 4648 KB Partially correct
15 Partially correct 28 ms 6112 KB Partially correct
16 Partially correct 16 ms 5180 KB Partially correct
17 Correct 15 ms 4660 KB Output is correct
18 Partially correct 27 ms 4928 KB Partially correct
19 Partially correct 19 ms 4664 KB Partially correct
20 Correct 13 ms 7216 KB Output is correct
21 Correct 15 ms 7304 KB Output is correct
22 Correct 17 ms 6796 KB Output is correct
23 Correct 17 ms 6716 KB Output is correct
24 Correct 17 ms 6704 KB Output is correct
25 Correct 17 ms 6716 KB Output is correct
26 Correct 17 ms 6712 KB Output is correct
27 Correct 19 ms 7268 KB Output is correct
28 Correct 16 ms 6716 KB Output is correct
29 Correct 15 ms 6188 KB Output is correct
30 Correct 16 ms 6664 KB Output is correct

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 5172 KB Output is correct
2 Correct 22 ms 5748 KB Output is correct
3 Incorrect 25 ms 5904 KB Output isn't correct
4 Halted 0 ms 0 KB -