oj.uz

Submission #882551

# Submission time Handle Problem Language Result Execution time Memory
882551 2023-12-03T11:18:29 Z viwlesxq Construction of Highway (JOI18_construction) C++17
16 / 100
 159 ms 1748 KB 
//     ↘ ⬇ ⬇ ⬇ ⬇ ⬇ ↙
//     ➡  IOI, IZhO ⬅
//     ↗ ⬆ ⬆ ⬆ ⬆ ⬆ ↖
//⠀⠀⢠⣤⡄⢠⣤⣤⣤⣤⣤⣤⡄⢠⣤⡄⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⢸⣿⡇⢸⣿⣿⣿⣿⣿⣿⡇⢸⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⢸⣿⡇⢸⣿⣿⣿⣿⣿⣿⡇⢸⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⢸⣿⡇⢸⣿⣿⣿⣿⣿⣿⡇⢸⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⢸⣿⡇⢸⣿⣿⣿⣿⣿⣿⡇⢸⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⢸⣿⡇⢸⣿⣿⣿⣿⣿⣿⡇⢸⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⠀⠙⠃⠘⠛⠛⠛⠛⠛⠛⠃⠘⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⠀  ⠘⠛⠛⠛⠛⠛⠛⠛⠛⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⠀⠀⠀⣠⣶⣶⠂⣰⣶⣶⣄⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⠀⢀⣾⣿⣿⡏⢠⣿⣿⣿⣿⣿⣆⠀⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⠀⡈⠻⣿⣿⣶⣾⣿⣿⣿⣿⠿⠋⡀⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⠀⣿⣶⣄⠙⣿⣿⣿⣿⣟⢁⣴⣾⡇⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⠀⢹⣿⡏⢠⣿⠟⠛⢿⣿⣿⣿⡿⠁⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⠀⠀⠙⠀⠀⣠⣶⣷⣤⡈⠛⠛⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀
//⠀⠀⠀⠀⠀⠀⠈⠉⠛⠛⠋⠉⠀⠀


#include <bits/stdc++.h>

using namespace std;

#define int long long
#define all(x) x.begin(), x.end()
#define size(x) (int)x.size()
#define pb push_back
#define eb emplace_back

template<typename S>
bool chmin(S &a, const S b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template<typename S>
bool chmax(S &a, const S b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

const int mod = 1e9 + 7;
const int inf = 1e9 + 7;
const int INF = 1e18 + 7;
const double eps = 1e-6;
const double EPS = 1e-9;

vector<int> path, g[4000];

struct Fenwick_Tree {
    int n;
    vector<int> t;
    Fenwick_Tree(int n) {
        this->n = n;
        t.assign(n, 0);
    }
    void upd(int i) {
        for (; i < n; i = i | (i + 1)) {
            t[i]++;
        }
    }
    int get(int i) {
        int res = 0;
        for (; i >= 0; i = (i & (i + 1)) - 1) {
            res += t[i];
        }
        return res;
    }
};

void compress(vector<int> &c) {
    vector<int> v;
    unordered_map<int, int> mp;
    for (int i = 0; i < size(c); ++i) {
        if (!mp.count(c[i])) {
            v.pb(c[i]);
            mp[c[i]];
        }
    }
    sort(all(v));
    for (int i = 0; i < size(v); ++i) {
        mp[v[i]] = i;
    }
    for (int i = 0; i < size(c); ++i) {
        c[i] = mp[c[i]];
    }
}

bool dfs(int v, int p, int f) {
    if (v == f) {
        path.pb(v);
        return true;
    }
    for (int to : g[v]) {
        if (to == p) {
            continue;
        }
        if (dfs(to, v, f)) {
            path.pb(v);
            return true;
        }
    }
    return false;
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    vector<int> c(n);
    for (int i = 0; i < n; ++i) {
        cin >> c[i];
    }
    compress(c);
    for (int i = 1; i < n; ++i) {
        int a, b;
        cin >> a >> b;
        a--, --b;
        path.clear();
        dfs(0, -1, a);
        reverse(all(path));
        Fenwick_Tree t(4000);
        t.upd(c[path[0]]);
        c[path[0]] = c[b];
        g[a].pb(b);
        g[b].pb(a);
        int res = 0;
        for (int j = 1; j < size(path); ++j) {
            t.upd(c[path[j]]);
            res += j + 1 - t.get(c[path[j]]);
            c[path[j]] = c[b];
        }
        cout << res << '\n';
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 548 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 560 KB Output is correct
8 Correct 3 ms 604 KB Output is correct
9 Correct 4 ms 604 KB Output is correct
10 Correct 3 ms 640 KB Output is correct
11 Correct 3 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 2 ms 560 KB Output is correct
19 Correct 3 ms 548 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 3 ms 604 KB Output is correct
22 Correct 2 ms 604 KB Output is correct
23 Correct 1 ms 556 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 3 ms 604 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 2 ms 604 KB Output is correct
29 Correct 2 ms 604 KB Output is correct
30 Correct 2 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 3 ms 604 KB Output is correct
33 Correct 2 ms 604 KB Output is correct
34 Correct 2 ms 604 KB Output is correct
35 Correct 2 ms 628 KB Output is correct
36 Correct 2 ms 604 KB Output is correct
37 Correct 3 ms 600 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 3 ms 396 KB Output is correct
40 Correct 3 ms 604 KB Output is correct
41 Correct 2 ms 604 KB Output is correct
42 Correct 2 ms 604 KB Output is correct
43 Correct 2 ms 604 KB Output is correct
44 Correct 2 ms 604 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 548 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 560 KB Output is correct
8 Correct 3 ms 604 KB Output is correct
9 Correct 4 ms 604 KB Output is correct
10 Correct 3 ms 640 KB Output is correct
11 Correct 3 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 2 ms 560 KB Output is correct
19 Correct 3 ms 548 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 3 ms 604 KB Output is correct
22 Correct 2 ms 604 KB Output is correct
23 Correct 1 ms 556 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 3 ms 604 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 2 ms 604 KB Output is correct
29 Correct 2 ms 604 KB Output is correct
30 Correct 2 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 3 ms 604 KB Output is correct
33 Correct 2 ms 604 KB Output is correct
34 Correct 2 ms 604 KB Output is correct
35 Correct 2 ms 628 KB Output is correct
36 Correct 2 ms 604 KB Output is correct
37 Correct 3 ms 600 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 3 ms 396 KB Output is correct
40 Correct 3 ms 604 KB Output is correct
41 Correct 2 ms 604 KB Output is correct
42 Correct 2 ms 604 KB Output is correct
43 Correct 2 ms 604 KB Output is correct
44 Correct 2 ms 604 KB Output is correct
45 Correct 4 ms 604 KB Output is correct
46 Correct 39 ms 604 KB Output is correct
47 Correct 33 ms 860 KB Output is correct
48 Correct 31 ms 860 KB Output is correct
49 Correct 155 ms 1124 KB Output is correct
50 Correct 157 ms 856 KB Output is correct
51 Correct 159 ms 1228 KB Output is correct
52 Correct 86 ms 856 KB Output is correct
53 Correct 82 ms 860 KB Output is correct
54 Correct 81 ms 1112 KB Output is correct
55 Correct 85 ms 860 KB Output is correct
56 Correct 83 ms 920 KB Output is correct
57 Correct 31 ms 600 KB Output is correct
58 Correct 34 ms 856 KB Output is correct
59 Correct 31 ms 600 KB Output is correct
60 Correct 31 ms 860 KB Output is correct
61 Correct 85 ms 956 KB Output is correct
62 Correct 85 ms 1192 KB Output is correct
63 Correct 85 ms 964 KB Output is correct
64 Correct 31 ms 604 KB Output is correct
65 Correct 30 ms 796 KB Output is correct
66 Correct 30 ms 600 KB Output is correct
67 Correct 30 ms 604 KB Output is correct
68 Correct 154 ms 848 KB Output is correct
69 Correct 81 ms 940 KB Output is correct
70 Correct 79 ms 896 KB Output is correct
71 Correct 80 ms 848 KB Output is correct
72 Correct 36 ms 848 KB Output is correct
73 Correct 31 ms 604 KB Output is correct
74 Correct 103 ms 836 KB Output is correct
75 Correct 63 ms 860 KB Output is correct
76 Correct 56 ms 860 KB Output is correct
77 Correct 56 ms 872 KB Output is correct
78 Correct 62 ms 848 KB Output is correct
79 Correct 57 ms 756 KB Output is correct
80 Correct 61 ms 736 KB Output is correct
81 Correct 70 ms 896 KB Output is correct
82 Correct 69 ms 884 KB Output is correct
83 Correct 63 ms 872 KB Output is correct
84 Correct 66 ms 768 KB Output is correct
85 Correct 64 ms 748 KB Output is correct
86 Correct 59 ms 836 KB Output is correct

Subtask #3
0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 548 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 2 ms 604 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 560 KB Output is correct
8 Correct 3 ms 604 KB Output is correct
9 Correct 4 ms 604 KB Output is correct
10 Correct 3 ms 640 KB Output is correct
11 Correct 3 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 2 ms 604 KB Output is correct
17 Correct 2 ms 604 KB Output is correct
18 Correct 2 ms 560 KB Output is correct
19 Correct 3 ms 548 KB Output is correct
20 Correct 2 ms 604 KB Output is correct
21 Correct 3 ms 604 KB Output is correct
22 Correct 2 ms 604 KB Output is correct
23 Correct 1 ms 556 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 2 ms 604 KB Output is correct
26 Correct 3 ms 604 KB Output is correct
27 Correct 2 ms 604 KB Output is correct
28 Correct 2 ms 604 KB Output is correct
29 Correct 2 ms 604 KB Output is correct
30 Correct 2 ms 604 KB Output is correct
31 Correct 1 ms 604 KB Output is correct
32 Correct 3 ms 604 KB Output is correct
33 Correct 2 ms 604 KB Output is correct
34 Correct 2 ms 604 KB Output is correct
35 Correct 2 ms 628 KB Output is correct
36 Correct 2 ms 604 KB Output is correct
37 Correct 3 ms 600 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 3 ms 396 KB Output is correct
40 Correct 3 ms 604 KB Output is correct
41 Correct 2 ms 604 KB Output is correct
42 Correct 2 ms 604 KB Output is correct
43 Correct 2 ms 604 KB Output is correct
44 Correct 2 ms 604 KB Output is correct
45 Correct 4 ms 604 KB Output is correct
46 Correct 39 ms 604 KB Output is correct
47 Correct 33 ms 860 KB Output is correct
48 Correct 31 ms 860 KB Output is correct
49 Correct 155 ms 1124 KB Output is correct
50 Correct 157 ms 856 KB Output is correct
51 Correct 159 ms 1228 KB Output is correct
52 Correct 86 ms 856 KB Output is correct
53 Correct 82 ms 860 KB Output is correct
54 Correct 81 ms 1112 KB Output is correct
55 Correct 85 ms 860 KB Output is correct
56 Correct 83 ms 920 KB Output is correct
57 Correct 31 ms 600 KB Output is correct
58 Correct 34 ms 856 KB Output is correct
59 Correct 31 ms 600 KB Output is correct
60 Correct 31 ms 860 KB Output is correct
61 Correct 85 ms 956 KB Output is correct
62 Correct 85 ms 1192 KB Output is correct
63 Correct 85 ms 964 KB Output is correct
64 Correct 31 ms 604 KB Output is correct
65 Correct 30 ms 796 KB Output is correct
66 Correct 30 ms 600 KB Output is correct
67 Correct 30 ms 604 KB Output is correct
68 Correct 154 ms 848 KB Output is correct
69 Correct 81 ms 940 KB Output is correct
70 Correct 79 ms 896 KB Output is correct
71 Correct 80 ms 848 KB Output is correct
72 Correct 36 ms 848 KB Output is correct
73 Correct 31 ms 604 KB Output is correct
74 Correct 103 ms 836 KB Output is correct
75 Correct 63 ms 860 KB Output is correct
76 Correct 56 ms 860 KB Output is correct
77 Correct 56 ms 872 KB Output is correct
78 Correct 62 ms 848 KB Output is correct
79 Correct 57 ms 756 KB Output is correct
80 Correct 61 ms 736 KB Output is correct
81 Correct 70 ms 896 KB Output is correct
82 Correct 69 ms 884 KB Output is correct
83 Correct 63 ms 872 KB Output is correct
84 Correct 66 ms 768 KB Output is correct
85 Correct 64 ms 748 KB Output is correct
86 Correct 59 ms 836 KB Output is correct
87 Runtime error 4 ms 1748 KB Execution killed with signal 11
88 Halted 0 ms 0 KB -