oj.uz

Submission #974060

# Submission time Handle Problem Language Result Execution time Memory
974060 2024-05-02T16:59:48 Z steveonalex Amusement Park (JOI17_amusement_park) C++17
83 / 100
 30 ms 9444 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];
int sum[N], longest_path[N];
bool bit[60];
 
void go(int u, int p){
    for(int v: graph[u]) if (v != p){
        go(v, u);
        if (dp[v]) {
            dp[u] = 1;
            sum[u] += sum[v] + 1;
            maximize(longest_path[u], longest_path[v] + 1);
        }
    }
}
 
 
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); memset(sum, 0, sizeof sum);
            for(int k = j; k <= j+59; ++k) dp[shit[i][k]] = 1;
            go(P, P);
 
            minimize(best, make_pair(sum[P] - longest_path[P], j));
        }
        memset(dp, 0, sizeof dp); memset(sum, 0, sizeof sum);
        if (best.first > 120) assert(false);
        for(int k = best.second; k <= best.second+59; ++k) dp[shit[i][k]] = 1;
        go(P, P);
        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:151:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  151 |         for(int j = 0; j < shit[i].size(); ++j) if (shit[i][j] == P) pos = j;
      |                        ~~^~~~~~~~~~~~~~~~
Ioi.cpp:156:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  156 |         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 1 ms 2064 KB Output is correct
2 Correct 2 ms 2072 KB Output is correct
3 Correct 2 ms 2076 KB Output is correct
4 Correct 2 ms 2076 KB Output is correct
5 Correct 2 ms 2076 KB Output is correct
6 Correct 2 ms 2076 KB Output is correct
7 Correct 2 ms 2064 KB Output is correct
8 Correct 2 ms 2080 KB Output is correct
9 Correct 2 ms 2072 KB Output is correct
10 Correct 2 ms 2076 KB Output is correct
11 Correct 4 ms 2112 KB Output is correct
12 Correct 2 ms 2072 KB Output is correct
13 Correct 2 ms 2080 KB Output is correct
14 Correct 2 ms 2080 KB Output is correct
15 Correct 2 ms 2080 KB Output is correct
16 Correct 2 ms 2080 KB Output is correct
17 Correct 2 ms 2060 KB Output is correct
18 Correct 2 ms 2080 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 5632 KB Output is correct
2 Correct 22 ms 5492 KB Output is correct
3 Correct 23 ms 5588 KB Output is correct
4 Correct 22 ms 4824 KB Output is correct
5 Correct 19 ms 8424 KB Output is correct
6 Correct 30 ms 6356 KB Output is correct
7 Correct 17 ms 6360 KB Output is correct
8 Correct 17 ms 6488 KB Output is correct
9 Correct 16 ms 6620 KB Output is correct
10 Correct 11 ms 4580 KB Output is correct
11 Correct 15 ms 4824 KB Output is correct
12 Correct 13 ms 4304 KB Output is correct
13 Correct 13 ms 4412 KB Output is correct
14 Correct 14 ms 4572 KB Output is correct
15 Correct 29 ms 5340 KB Output is correct
16 Correct 28 ms 5340 KB Output is correct
17 Correct 15 ms 4820 KB Output is correct
18 Correct 26 ms 4828 KB Output is correct
19 Correct 26 ms 4832 KB Output is correct
20 Correct 13 ms 7140 KB Output is correct
21 Correct 16 ms 7344 KB Output is correct
22 Correct 24 ms 6516 KB Output is correct
23 Correct 16 ms 6864 KB Output is correct
24 Correct 16 ms 6744 KB Output is correct
25 Correct 17 ms 6884 KB Output is correct
26 Correct 16 ms 6880 KB Output is correct
27 Correct 17 ms 6876 KB Output is correct
28 Correct 18 ms 7020 KB Output is correct
29 Correct 16 ms 6340 KB Output is correct
30 Correct 15 ms 6352 KB Output is correct
31 Correct 2 ms 2076 KB Output is correct
32 Correct 2 ms 2076 KB Output is correct
33 Correct 2 ms 2080 KB Output is correct
34 Correct 2 ms 2072 KB Output is correct
35 Correct 2 ms 2072 KB Output is correct
36 Correct 2 ms 2328 KB Output is correct
37 Correct 2 ms 2076 KB Output is correct
38 Correct 2 ms 2056 KB Output is correct
39 Correct 2 ms 2072 KB Output is correct
40 Correct 2 ms 2072 KB Output is correct
41 Correct 2 ms 2076 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 2064 KB Output is correct
2 Correct 2 ms 2072 KB Output is correct
3 Correct 2 ms 2328 KB Output is correct
4 Correct 4 ms 3128 KB Output is correct
5 Correct 4 ms 3128 KB Output is correct
6 Correct 4 ms 3128 KB Output is correct
7 Correct 4 ms 3116 KB Output is correct
8 Correct 3 ms 3124 KB Output is correct
9 Correct 15 ms 9436 KB Output is correct
10 Correct 19 ms 9424 KB Output is correct
11 Correct 16 ms 9444 KB Output is correct
12 Correct 2 ms 2328 KB Output is correct
13 Correct 2 ms 2076 KB Output is correct
14 Correct 2 ms 2076 KB Output is correct
15 Correct 2 ms 2076 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 5572 KB Output is correct
2 Correct 24 ms 5584 KB Output is correct
3 Correct 22 ms 5580 KB Output is correct
4 Correct 20 ms 4824 KB Output is correct
5 Correct 19 ms 8664 KB Output is correct
6 Correct 22 ms 6616 KB Output is correct
7 Correct 16 ms 6372 KB Output is correct
8 Correct 15 ms 6104 KB Output is correct
9 Correct 18 ms 6400 KB Output is correct
10 Correct 12 ms 4832 KB Output is correct
11 Correct 16 ms 4824 KB Output is correct
12 Correct 13 ms 4292 KB Output is correct
13 Correct 14 ms 4564 KB Output is correct
14 Correct 13 ms 4460 KB Output is correct
15 Correct 29 ms 5844 KB Output is correct
16 Correct 16 ms 5348 KB Output is correct
17 Correct 15 ms 4916 KB Output is correct
18 Correct 27 ms 4816 KB Output is correct
19 Correct 19 ms 4816 KB Output is correct
20 Correct 13 ms 7140 KB Output is correct
21 Correct 12 ms 7132 KB Output is correct
22 Correct 17 ms 6872 KB Output is correct
23 Correct 15 ms 6620 KB Output is correct
24 Correct 18 ms 6616 KB Output is correct
25 Correct 17 ms 6876 KB Output is correct
26 Correct 17 ms 6876 KB Output is correct
27 Correct 16 ms 6884 KB Output is correct
28 Correct 16 ms 6620 KB Output is correct
29 Correct 16 ms 6576 KB Output is correct
30 Correct 15 ms 6612 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 5572 KB Output is correct
2 Correct 22 ms 5596 KB Output is correct
3 Incorrect 23 ms 5460 KB Output isn't correct
4 Halted 0 ms 0 KB -