oj.uz

Submission #974046

# Submission time Handle Problem Language Result Execution time Memory
974046 2024-05-02T16:31:04 Z steveonalex Amusement Park (JOI17_amusement_park) C++17
70 / 100
 30 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];
int kid = 0;

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){
    if (kid == MASK(60) - 1) return;
    for(int v: graph[u]) if (v != p && dp[v]){
        bit[color[v]] = Move(v);
        kid |= MASK(color[v]);
        bobby(v, u);
    }
    if (kid == MASK(60) - 1) return;
    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;
    kid = MASK(color[P]);
    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:153:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  153 |         for(int j = 0; j < shit[i].size(); ++j) if (shit[i][j] == P) pos = j;
      |                        ~~^~~~~~~~~~~~~~~~
Ioi.cpp:158:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  158 |         for(int j = 0; j + 59 < shit[i].size();++j)if (j <= pos && pos <= j + 59){
      |                        ~~~~~~~^~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2124 KB Output is correct
2 Correct 2 ms 2068 KB Output is correct
3 Correct 2 ms 2080 KB Output is correct
4 Correct 2 ms 2064 KB Output is correct
5 Correct 1 ms 2080 KB Output is correct
6 Correct 2 ms 2068 KB Output is correct
7 Correct 2 ms 2076 KB Output is correct
8 Correct 2 ms 2068 KB Output is correct
9 Correct 2 ms 2076 KB Output is correct
10 Correct 2 ms 2064 KB Output is correct
11 Correct 4 ms 2144 KB Output is correct
12 Correct 2 ms 2080 KB Output is correct
13 Correct 2 ms 2084 KB Output is correct
14 Correct 2 ms 2080 KB Output is correct
15 Correct 2 ms 2084 KB Output is correct
16 Correct 2 ms 2084 KB Output is correct
17 Correct 2 ms 2084 KB Output is correct
18 Correct 2 ms 2084 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 5776 KB Output is correct
2 Correct 28 ms 5840 KB Output is correct
3 Correct 23 ms 5776 KB Output is correct
4 Correct 25 ms 4924 KB Output is correct
5 Correct 19 ms 8588 KB Output is correct
6 Correct 30 ms 6512 KB Output is correct
7 Correct 17 ms 6720 KB Output is correct
8 Correct 20 ms 6680 KB Output is correct
9 Correct 18 ms 6708 KB Output is correct
10 Correct 13 ms 4676 KB Output is correct
11 Correct 18 ms 4932 KB Output is correct
12 Correct 13 ms 4648 KB Output is correct
13 Correct 13 ms 4644 KB Output is correct
14 Correct 13 ms 4652 KB Output is correct
15 Correct 29 ms 5460 KB Output is correct
16 Correct 28 ms 5436 KB Output is correct
17 Correct 15 ms 4872 KB Output is correct
18 Correct 26 ms 4660 KB Output is correct
19 Correct 26 ms 4664 KB Output is correct
20 Correct 13 ms 7236 KB Output is correct
21 Correct 13 ms 7180 KB Output is correct
22 Correct 23 ms 6644 KB Output is correct
23 Correct 19 ms 7060 KB Output is correct
24 Correct 16 ms 6724 KB Output is correct
25 Correct 16 ms 6848 KB Output is correct
26 Correct 16 ms 6964 KB Output is correct
27 Correct 16 ms 6720 KB Output is correct
28 Correct 17 ms 6708 KB Output is correct
29 Correct 15 ms 6436 KB Output is correct
30 Correct 16 ms 6712 KB Output is correct
31 Correct 2 ms 2080 KB Output is correct
32 Correct 2 ms 2068 KB Output is correct
33 Correct 2 ms 2084 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 2080 KB Output is correct
37 Correct 2 ms 2068 KB Output is correct
38 Correct 2 ms 2080 KB Output is correct
39 Correct 1 ms 2080 KB Output is correct
40 Correct 2 ms 2080 KB Output is correct
41 Correct 2 ms 2068 KB Output is correct
42 Correct 2 ms 2064 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2068 KB Output is correct
2 Correct 2 ms 2068 KB Output is correct
3 Correct 2 ms 2080 KB Output is correct
4 Correct 4 ms 3136 KB Output is correct
5 Correct 4 ms 3144 KB Output is correct
6 Correct 4 ms 3136 KB Output is correct
7 Correct 4 ms 3136 KB Output is correct
8 Correct 4 ms 3224 KB Output is correct
9 Correct 16 ms 9796 KB Output is correct
10 Correct 19 ms 9628 KB Output is correct
11 Correct 15 ms 9784 KB Output is correct
12 Correct 1 ms 2068 KB Output is correct
13 Correct 2 ms 2080 KB Output is correct
14 Correct 1 ms 2528 KB Output is correct
15 Correct 2 ms 2576 KB Output is correct

Subtask #4
42.0 / 55.0

# Verdict Execution time Memory Grader output
1 Partially correct 26 ms 5944 KB Partially correct
2 Partially correct 22 ms 5772 KB Partially correct
3 Correct 23 ms 5772 KB Output is correct
4 Partially correct 22 ms 4676 KB Partially correct
5 Correct 20 ms 8776 KB Output is correct
6 Partially correct 20 ms 6720 KB Partially correct
7 Correct 16 ms 6688 KB Output is correct
8 Correct 16 ms 6200 KB Output is correct
9 Correct 17 ms 6444 KB Output is correct
10 Correct 13 ms 4932 KB Output is correct
11 Partially correct 15 ms 4668 KB Partially correct
12 Partially correct 13 ms 4640 KB Partially correct
13 Partially correct 13 ms 4588 KB Partially correct
14 Partially correct 13 ms 4660 KB Partially correct
15 Partially correct 28 ms 5952 KB Partially correct
16 Partially correct 16 ms 5180 KB Partially correct
17 Correct 15 ms 4652 KB Output is correct
18 Partially correct 27 ms 4668 KB Partially correct
19 Partially correct 19 ms 4916 KB Partially correct
20 Correct 13 ms 7432 KB Output is correct
21 Correct 13 ms 7228 KB Output is correct
22 Correct 17 ms 6756 KB Output is correct
23 Correct 16 ms 6716 KB Output is correct
24 Correct 16 ms 6716 KB Output is correct
25 Correct 16 ms 6720 KB Output is correct
26 Correct 16 ms 6712 KB Output is correct
27 Correct 16 ms 7228 KB Output is correct
28 Correct 17 ms 6712 KB Output is correct
29 Correct 15 ms 6176 KB Output is correct
30 Correct 16 ms 6708 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 6020 KB Output is correct
2 Correct 22 ms 5628 KB Output is correct
3 Incorrect 22 ms 6148 KB Output isn't correct
4 Halted 0 ms 0 KB -