oj.uz

Submission #889639

# Submission time Handle Problem Language Result Execution time Memory
889639 2023-12-20T04:13:56 Z vjudge1 Tourism (JOI23_tourism) C++17
17 / 100
 119 ms 38740 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;
}

struct Sp{
    vector <vector<int>> T;
    int _s;
    Sp(auto &a, int s){
        _s = s;
        T.resize(20);
        int n = a.size();
        for ( auto &x: T ){
            x.resize(n);
        }
        T[0] = a;
        for ( auto &u: T[0] ) u *= _s;
        for ( int i = 1; i < 20; i++ ){
            int k = 1 << i - 1;
            for ( int j = 0; j < n; j++ ){
                T[i][j] = min(T[i - 1][j], T[i - 1][min(n - 1, j + k)]);
            }
        }
    }
    int get(int l, int r){
        int lg = __lg(r - l + 1), k = 1 << lg;
        return min(T[lg][l], T[lg][r - k + 1]) * _s;
    }
};

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

    int n, m, q; cin >> n >> m >> q;
    vector <vector<int>> G(n);
    bool Qflag = true;
    for ( int i = 1; i < n; i++ ){
        int u, v; cin >> u >> v;
        --u, --v;
        G[u].pb(v), G[v].pb(u);
        if ( u + 1 != v ) Qflag = false;
    }
    vector <int> C(m);
    for ( auto &x: C ){
        cin >> x; --x;
    }
    if ( max({n, m, q}) <= 3000 ){
        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;
        } exit(0);
    }
    if ( Qflag ){
        Sp mn(C, 1), mx(C, -1);
        while ( q-- ){
            int l, r; cin >> l >> r;
            --l, --r;
            cout << mx.get(l, r) - mn.get(l, r) + 1 << ln;
        }
    }

    cout << '\n';
}

Compilation message

tourism.cpp:34:8: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   34 |     Sp(auto &a, int s){
      |        ^~~~
tourism.cpp: In function 'int main()':
tourism.cpp:77:17: warning: unused variable 's' [-Wunused-variable]
   77 |             int s = r - l + 1;
      |                 ^
tourism.cpp: In instantiation of 'Sp::Sp(auto:23&, long long int) [with auto:23 = std::vector<long long int>]':
tourism.cpp:117:19:   required from here
tourism.cpp:44:28: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   44 |             int k = 1 << i - 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 2 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 3 ms 348 KB Output is correct
10 Correct 2 ms 348 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 3 ms 348 KB Output is correct
17 Correct 2 ms 492 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 3 ms 348 KB Output is correct
20 Correct 2 ms 348 KB Output is correct
21 Correct 2 ms 488 KB Output is correct
22 Correct 3 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 2 ms 348 KB Output is correct
25 Correct 3 ms 348 KB Output is correct
26 Correct 3 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 2 ms 356 KB Output is correct
29 Correct 2 ms 480 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 2 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 3 ms 348 KB Output is correct
10 Correct 2 ms 348 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 3 ms 348 KB Output is correct
17 Correct 2 ms 492 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 3 ms 348 KB Output is correct
20 Correct 2 ms 348 KB Output is correct
21 Correct 2 ms 488 KB Output is correct
22 Correct 3 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 2 ms 348 KB Output is correct
25 Correct 3 ms 348 KB Output is correct
26 Correct 3 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 2 ms 356 KB Output is correct
29 Correct 2 ms 480 KB Output is correct
30 Correct 55 ms 588 KB Output is correct
31 Correct 72 ms 348 KB Output is correct
32 Correct 117 ms 604 KB Output is correct
33 Correct 119 ms 608 KB Output is correct
34 Correct 115 ms 604 KB Output is correct
35 Correct 79 ms 604 KB Output is correct
36 Correct 77 ms 620 KB Output is correct
37 Correct 80 ms 600 KB Output is correct
38 Correct 96 ms 600 KB Output is correct
39 Correct 99 ms 684 KB Output is correct
40 Correct 94 ms 600 KB Output is correct
41 Correct 94 ms 856 KB Output is correct
42 Correct 94 ms 696 KB Output is correct
43 Correct 94 ms 604 KB Output is correct
44 Correct 97 ms 600 KB Output is correct
45 Correct 100 ms 604 KB Output is correct
46 Correct 112 ms 640 KB Output is correct
47 Correct 103 ms 600 KB Output is correct
48 Correct 96 ms 616 KB Output is correct
49 Correct 95 ms 604 KB Output is correct
50 Correct 86 ms 848 KB Output is correct
51 Correct 93 ms 604 KB Output is correct
52 Correct 79 ms 608 KB Output is correct
53 Correct 106 ms 616 KB Output is correct
54 Correct 109 ms 768 KB Output is correct
55 Correct 113 ms 624 KB Output is correct
56 Correct 5 ms 512 KB Output is correct
57 Correct 112 ms 596 KB Output is correct
58 Correct 74 ms 600 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 4 ms 348 KB Output is correct
4 Correct 51 ms 32352 KB Output is correct
5 Correct 43 ms 23488 KB Output is correct
6 Correct 59 ms 32084 KB Output is correct
7 Correct 79 ms 38740 KB Output is correct
8 Correct 65 ms 38736 KB Output is correct
9 Correct 70 ms 38580 KB Output is correct
10 Correct 65 ms 38736 KB Output is correct
11 Correct 64 ms 38740 KB Output is correct
12 Correct 57 ms 38480 KB Output is correct
13 Correct 57 ms 38740 KB Output is correct
14 Correct 58 ms 38740 KB Output is correct
15 Correct 31 ms 5980 KB Output is correct
16 Correct 62 ms 38152 KB Output is correct
17 Correct 43 ms 32760 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 15 ms 4188 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 4 ms 348 KB Output is correct
4 Incorrect 16 ms 4444 KB Output isn't correct
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 2 ms 348 KB Output is correct
6 Correct 2 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 3 ms 348 KB Output is correct
10 Correct 2 ms 348 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 3 ms 348 KB Output is correct
17 Correct 2 ms 492 KB Output is correct
18 Correct 2 ms 348 KB Output is correct
19 Correct 3 ms 348 KB Output is correct
20 Correct 2 ms 348 KB Output is correct
21 Correct 2 ms 488 KB Output is correct
22 Correct 3 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 2 ms 348 KB Output is correct
25 Correct 3 ms 348 KB Output is correct
26 Correct 3 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 2 ms 356 KB Output is correct
29 Correct 2 ms 480 KB Output is correct
30 Correct 55 ms 588 KB Output is correct
31 Correct 72 ms 348 KB Output is correct
32 Correct 117 ms 604 KB Output is correct
33 Correct 119 ms 608 KB Output is correct
34 Correct 115 ms 604 KB Output is correct
35 Correct 79 ms 604 KB Output is correct
36 Correct 77 ms 620 KB Output is correct
37 Correct 80 ms 600 KB Output is correct
38 Correct 96 ms 600 KB Output is correct
39 Correct 99 ms 684 KB Output is correct
40 Correct 94 ms 600 KB Output is correct
41 Correct 94 ms 856 KB Output is correct
42 Correct 94 ms 696 KB Output is correct
43 Correct 94 ms 604 KB Output is correct
44 Correct 97 ms 600 KB Output is correct
45 Correct 100 ms 604 KB Output is correct
46 Correct 112 ms 640 KB Output is correct
47 Correct 103 ms 600 KB Output is correct
48 Correct 96 ms 616 KB Output is correct
49 Correct 95 ms 604 KB Output is correct
50 Correct 86 ms 848 KB Output is correct
51 Correct 93 ms 604 KB Output is correct
52 Correct 79 ms 608 KB Output is correct
53 Correct 106 ms 616 KB Output is correct
54 Correct 109 ms 768 KB Output is correct
55 Correct 113 ms 624 KB Output is correct
56 Correct 5 ms 512 KB Output is correct
57 Correct 112 ms 596 KB Output is correct
58 Correct 74 ms 600 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 4 ms 348 KB Output is correct
62 Correct 51 ms 32352 KB Output is correct
63 Correct 43 ms 23488 KB Output is correct
64 Correct 59 ms 32084 KB Output is correct
65 Correct 79 ms 38740 KB Output is correct
66 Correct 65 ms 38736 KB Output is correct
67 Correct 70 ms 38580 KB Output is correct
68 Correct 65 ms 38736 KB Output is correct
69 Correct 64 ms 38740 KB Output is correct
70 Correct 57 ms 38480 KB Output is correct
71 Correct 57 ms 38740 KB Output is correct
72 Correct 58 ms 38740 KB Output is correct
73 Correct 31 ms 5980 KB Output is correct
74 Correct 62 ms 38152 KB Output is correct
75 Correct 43 ms 32760 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Incorrect 15 ms 4188 KB Output isn't correct
78 Halted 0 ms 0 KB -