oj.uz

Submission #889618

# Submission time Handle Problem Language Result Execution time Memory
889618 2023-12-20T03:58:25 Z vjudge1 Tourism (JOI23_tourism) C++17
10 / 100
 5000 ms 8552 KB 
#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define ar array
#define pb push_back
#define ln '\n'
#define int long long

using i64 = long long;

template <class F, class _S>
bool chmin(F &u, const _S &v){
    bool flag = false;
    if ( u > v ){
        u = v; flag |= true;
    }
    return flag;
}

template <class F, class _S>
bool chmax(F &u, const _S &v){
    bool flag = false;
    if ( u < v ){
        u = v; flag |= true;
    }
    return flag;
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n, m, q; cin >> n >> m >> q;
    vector <vector<int>> G(n);
    for ( int i = 1; i < n; i++ ){
        int u, v; cin >> u >> v;
        --u, --v;
        G[u].pb(v), G[v].pb(u);
    }
    vector <int> C(m);
    for ( auto &x: C ){
        cin >> x; --x;
    }
    while ( q-- ){
        int l, r; cin >> l >> r;
        --l, --r;
        int s = r - l + 1;
        vector <int> sub(n), hv(n);
        for ( int i = l; i <= r; i++ ){
            sub[C[i]]++;
            hv[C[i]] = true;
        }
        auto dfs = [&](auto dfs, int u, int p) -> void{
            for ( auto &v: G[u] ){
                if ( v != p ){
                    dfs(dfs, v, u);
                    sub[u] += sub[v];
                }
            }
        };
        dfs(dfs, 0, -1);
        int ans = 0;
        auto dfs2 = [&](auto dfs2, int u, int p) -> void{
            bool flag = false, vs = false;
            for ( auto &v: G[u] ){
                if ( sub[v] ){
                    if ( !vs ) vs = true;
                    else flag = true;
                }
            }
            if ( hv[u] || flag ) ++ans;
            for ( auto &v: G[u] ){
                if ( v != p ){
                    sub[u] -= sub[v];
                    sub[v] += sub[u];
                    dfs2(dfs2, v, u);
                    sub[v] -= sub[u];
                    sub[u] += sub[v];
                }
            }
        };
        dfs2(dfs2, 0, -1);
        cout << ans << ln;
    }

    cout << '\n';
}

Compilation message

tourism.cpp: In function 'int main()':
tourism.cpp:49:13: warning: unused variable 's' [-Wunused-variable]
   49 |         int s = r - l + 1;
      |             ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 3 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 2 ms 348 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 3 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 2 ms 464 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 2 ms 488 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 3 ms 348 KB Output is correct
25 Correct 2 ms 348 KB Output is correct
26 Correct 2 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 2 ms 348 KB Output is correct
29 Correct 3 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 3 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 2 ms 348 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 3 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 2 ms 464 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 2 ms 488 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 3 ms 348 KB Output is correct
25 Correct 2 ms 348 KB Output is correct
26 Correct 2 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 2 ms 348 KB Output is correct
29 Correct 3 ms 348 KB Output is correct
30 Correct 59 ms 600 KB Output is correct
31 Correct 72 ms 580 KB Output is correct
32 Correct 119 ms 604 KB Output is correct
33 Correct 121 ms 612 KB Output is correct
34 Correct 119 ms 608 KB Output is correct
35 Correct 80 ms 856 KB Output is correct
36 Correct 82 ms 604 KB Output is correct
37 Correct 81 ms 632 KB Output is correct
38 Correct 99 ms 688 KB Output is correct
39 Correct 104 ms 604 KB Output is correct
40 Correct 96 ms 600 KB Output is correct
41 Correct 103 ms 604 KB Output is correct
42 Correct 101 ms 600 KB Output is correct
43 Correct 95 ms 672 KB Output is correct
44 Correct 101 ms 636 KB Output is correct
45 Correct 100 ms 640 KB Output is correct
46 Correct 98 ms 640 KB Output is correct
47 Correct 97 ms 624 KB Output is correct
48 Correct 101 ms 600 KB Output is correct
49 Correct 96 ms 628 KB Output is correct
50 Correct 81 ms 604 KB Output is correct
51 Correct 80 ms 632 KB Output is correct
52 Correct 79 ms 636 KB Output is correct
53 Correct 80 ms 628 KB Output is correct
54 Correct 79 ms 856 KB Output is correct
55 Correct 80 ms 604 KB Output is correct
56 Correct 4 ms 348 KB Output is correct
57 Correct 75 ms 584 KB Output is correct
58 Correct 74 ms 604 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 4 ms 348 KB Output is correct
4 Execution timed out 5080 ms 8552 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Execution timed out 5083 ms 5368 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 4 ms 348 KB Output is correct
4 Execution timed out 5006 ms 5552 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 3 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 2 ms 348 KB Output is correct
14 Correct 2 ms 348 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 2 ms 348 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 3 ms 348 KB Output is correct
19 Correct 2 ms 348 KB Output is correct
20 Correct 2 ms 464 KB Output is correct
21 Correct 2 ms 348 KB Output is correct
22 Correct 2 ms 488 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 3 ms 348 KB Output is correct
25 Correct 2 ms 348 KB Output is correct
26 Correct 2 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 2 ms 348 KB Output is correct
29 Correct 3 ms 348 KB Output is correct
30 Correct 59 ms 600 KB Output is correct
31 Correct 72 ms 580 KB Output is correct
32 Correct 119 ms 604 KB Output is correct
33 Correct 121 ms 612 KB Output is correct
34 Correct 119 ms 608 KB Output is correct
35 Correct 80 ms 856 KB Output is correct
36 Correct 82 ms 604 KB Output is correct
37 Correct 81 ms 632 KB Output is correct
38 Correct 99 ms 688 KB Output is correct
39 Correct 104 ms 604 KB Output is correct
40 Correct 96 ms 600 KB Output is correct
41 Correct 103 ms 604 KB Output is correct
42 Correct 101 ms 600 KB Output is correct
43 Correct 95 ms 672 KB Output is correct
44 Correct 101 ms 636 KB Output is correct
45 Correct 100 ms 640 KB Output is correct
46 Correct 98 ms 640 KB Output is correct
47 Correct 97 ms 624 KB Output is correct
48 Correct 101 ms 600 KB Output is correct
49 Correct 96 ms 628 KB Output is correct
50 Correct 81 ms 604 KB Output is correct
51 Correct 80 ms 632 KB Output is correct
52 Correct 79 ms 636 KB Output is correct
53 Correct 80 ms 628 KB Output is correct
54 Correct 79 ms 856 KB Output is correct
55 Correct 80 ms 604 KB Output is correct
56 Correct 4 ms 348 KB Output is correct
57 Correct 75 ms 584 KB Output is correct
58 Correct 74 ms 604 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 4 ms 348 KB Output is correct
62 Execution timed out 5080 ms 8552 KB Time limit exceeded
63 Halted 0 ms 0 KB -