oj.uz

Submission #447332

# Submission time Handle Problem Language Result Execution time Memory
447332 2021-07-26T06:20:23 Z tranxuanbach Birthday gift (IZhO18_treearray) C++17
100 / 100
 854 ms 131512 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;

#define endl '\n'
#define fi first
#define se second
#define For(i, l, r) for (int i = l; i < r; i++)
#define ForE(i, l, r) for (int i = l; i <= r; i++)
#define FordE(i, l, r) for (int i = l; i >= r; i--)
#define Fora(v, a) for (auto v: a)
#define bend(a) a.begin(), a.end()
#define isz(a) ((signed)a.size())

using ll = long long;
using ld = long double;
using pii = pair <int, int>;
using vi = vector <int>;
using vpii = vector <pii>;
using vvi = vector <vi>;

const int N = 2e5 + 5, M = __lg(N) + 2;

int n, m, q;
vi adj[N];
int a[N];

int h[N];
int ctrtime, tin[N], tout[N]; pii sptable[M][2 * N];

void dfs_tour(int u, int p){
    tin[u] = tout[u] = ++ctrtime; sptable[0][ctrtime] = {h[u], u};
    Fora(&v, adj[u]){
        if (v == p){
            continue;
        }
        h[v] = h[u] + 1;
        dfs_tour(v, u);
        tout[u] = ++ctrtime; sptable[0][ctrtime] = {h[u], u};
    }
}

int lca(int u, int v){
    int l = min(tin[u], tin[v]), r = max(tout[u], tout[v]), z = __lg(r - l + 1);
    return min(sptable[z][l], sptable[z][r - (1 << z) + 1]).se;
}

set <int> stt1[N], stt2[N];

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    // freopen(".inp", "r", stdin);
    // freopen(".out", "w", stdout);
    cin >> n >> m >> q;
    For(i, 1, n){
        int u, v; cin >> u >> v;
        adj[u].emplace_back(v);
        adj[v].emplace_back(u);
    }
    ForE(i, 1, m){
        cin >> a[i];
    }
    dfs_tour(1, 1);
    For(j, 1, M){
        ForE(i, 1, ctrtime - (1 << j) + 1){
            sptable[j][i] = min(sptable[j - 1][i], sptable[j - 1][i + (1 << (j - 1))]);
        }
    }
    ForE(i, 1, m){
        stt1[a[i]].insert(i);
    }
    ForE(i, 2, m){
        stt2[lca(a[i - 1], a[i])].insert(i);
    }
    while (q--){
        int que; cin >> que;
        if (que == 1){
            int pos, u; cin >> pos >> u;
            stt1[a[pos]].erase(pos);
            if (pos > 1){
                stt2[lca(a[pos - 1], a[pos])].erase(pos);
            }
            if (pos < m){
                stt2[lca(a[pos], a[pos + 1])].erase(pos + 1);
            }
            a[pos] = u;
            stt1[a[pos]].insert(pos);
            if (pos > 1){
                stt2[lca(a[pos - 1], a[pos])].insert(pos);
            }
            if (pos < m){
                stt2[lca(a[pos], a[pos + 1])].insert(pos + 1);
            }
        }
        else{
            int l, r, u; cin >> l >> r >> u;
            set <int>::iterator itr;
            itr = stt1[u].lower_bound(l);
            if (itr != stt1[u].end() and (*itr) <= r){
                cout << (*itr) << ' ' << (*itr) << endl;
                continue;
            }
            itr = stt2[u].lower_bound(l + 1);
            if (itr != stt2[u].end() and (*itr) <= r){
                cout << (*itr) - 1 << ' ' << (*itr) << endl;
                continue;
            }
            cout << -1 << ' ' << -1 << endl;
        }
    }
}

/*
==================================================+
INPUT:                                            |
--------------------------------------------------|
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1

--------------------------------------------------|
==================================================+
OUTPUT:                                           |
--------------------------------------------------|
1 3
3 3
-1 -1
--------------------------------------------------|
==================================================+
*/

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23756 KB n=5
2 Correct 13 ms 23884 KB n=100
3 Correct 13 ms 23884 KB n=100
4 Correct 13 ms 23856 KB n=100
5 Correct 13 ms 23884 KB n=100
6 Correct 13 ms 23868 KB n=100
7 Correct 13 ms 23824 KB n=100
8 Correct 14 ms 23884 KB n=100
9 Correct 15 ms 23832 KB n=100
10 Correct 13 ms 23884 KB n=100
11 Correct 14 ms 23896 KB n=100
12 Correct 13 ms 23900 KB n=100
13 Correct 14 ms 23872 KB n=100
14 Correct 13 ms 23884 KB n=100
15 Correct 13 ms 23884 KB n=100
16 Correct 13 ms 23884 KB n=100
17 Correct 13 ms 23876 KB n=100
18 Correct 13 ms 23884 KB n=100
19 Correct 13 ms 23812 KB n=100
20 Correct 13 ms 23884 KB n=100
21 Correct 13 ms 23884 KB n=100
22 Correct 13 ms 23884 KB n=100
23 Correct 14 ms 23884 KB n=100
24 Correct 13 ms 23884 KB n=100
25 Correct 13 ms 23896 KB n=100
26 Correct 13 ms 23756 KB n=12
27 Correct 15 ms 23904 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23756 KB n=5
2 Correct 13 ms 23884 KB n=100
3 Correct 13 ms 23884 KB n=100
4 Correct 13 ms 23856 KB n=100
5 Correct 13 ms 23884 KB n=100
6 Correct 13 ms 23868 KB n=100
7 Correct 13 ms 23824 KB n=100
8 Correct 14 ms 23884 KB n=100
9 Correct 15 ms 23832 KB n=100
10 Correct 13 ms 23884 KB n=100
11 Correct 14 ms 23896 KB n=100
12 Correct 13 ms 23900 KB n=100
13 Correct 14 ms 23872 KB n=100
14 Correct 13 ms 23884 KB n=100
15 Correct 13 ms 23884 KB n=100
16 Correct 13 ms 23884 KB n=100
17 Correct 13 ms 23876 KB n=100
18 Correct 13 ms 23884 KB n=100
19 Correct 13 ms 23812 KB n=100
20 Correct 13 ms 23884 KB n=100
21 Correct 13 ms 23884 KB n=100
22 Correct 13 ms 23884 KB n=100
23 Correct 14 ms 23884 KB n=100
24 Correct 13 ms 23884 KB n=100
25 Correct 13 ms 23896 KB n=100
26 Correct 13 ms 23756 KB n=12
27 Correct 15 ms 23904 KB n=100
28 Correct 14 ms 24012 KB n=500
29 Correct 14 ms 24012 KB n=500
30 Correct 16 ms 24012 KB n=500
31 Correct 14 ms 24012 KB n=500
32 Correct 14 ms 24024 KB n=500
33 Correct 14 ms 24012 KB n=500
34 Correct 14 ms 24012 KB n=500
35 Correct 14 ms 24004 KB n=500
36 Correct 14 ms 23992 KB n=500
37 Correct 14 ms 24012 KB n=500
38 Correct 14 ms 23980 KB n=500
39 Correct 15 ms 24032 KB n=500
40 Correct 14 ms 23972 KB n=500
41 Correct 14 ms 23952 KB n=500
42 Correct 15 ms 23952 KB n=500
43 Correct 14 ms 24012 KB n=500
44 Correct 14 ms 24036 KB n=500
45 Correct 14 ms 24012 KB n=500
46 Correct 14 ms 24052 KB n=500
47 Correct 15 ms 24016 KB n=500
48 Correct 14 ms 23988 KB n=500
49 Correct 15 ms 24012 KB n=500
50 Correct 14 ms 24036 KB n=500
51 Correct 14 ms 24004 KB n=500
52 Correct 14 ms 24012 KB n=500
53 Correct 14 ms 24012 KB n=500
54 Correct 14 ms 24048 KB n=500
55 Correct 13 ms 23884 KB n=278
56 Correct 14 ms 23964 KB n=500
57 Correct 14 ms 24012 KB n=500
58 Correct 15 ms 24012 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23756 KB n=5
2 Correct 13 ms 23884 KB n=100
3 Correct 13 ms 23884 KB n=100
4 Correct 13 ms 23856 KB n=100
5 Correct 13 ms 23884 KB n=100
6 Correct 13 ms 23868 KB n=100
7 Correct 13 ms 23824 KB n=100
8 Correct 14 ms 23884 KB n=100
9 Correct 15 ms 23832 KB n=100
10 Correct 13 ms 23884 KB n=100
11 Correct 14 ms 23896 KB n=100
12 Correct 13 ms 23900 KB n=100
13 Correct 14 ms 23872 KB n=100
14 Correct 13 ms 23884 KB n=100
15 Correct 13 ms 23884 KB n=100
16 Correct 13 ms 23884 KB n=100
17 Correct 13 ms 23876 KB n=100
18 Correct 13 ms 23884 KB n=100
19 Correct 13 ms 23812 KB n=100
20 Correct 13 ms 23884 KB n=100
21 Correct 13 ms 23884 KB n=100
22 Correct 13 ms 23884 KB n=100
23 Correct 14 ms 23884 KB n=100
24 Correct 13 ms 23884 KB n=100
25 Correct 13 ms 23896 KB n=100
26 Correct 13 ms 23756 KB n=12
27 Correct 15 ms 23904 KB n=100
28 Correct 14 ms 24012 KB n=500
29 Correct 14 ms 24012 KB n=500
30 Correct 16 ms 24012 KB n=500
31 Correct 14 ms 24012 KB n=500
32 Correct 14 ms 24024 KB n=500
33 Correct 14 ms 24012 KB n=500
34 Correct 14 ms 24012 KB n=500
35 Correct 14 ms 24004 KB n=500
36 Correct 14 ms 23992 KB n=500
37 Correct 14 ms 24012 KB n=500
38 Correct 14 ms 23980 KB n=500
39 Correct 15 ms 24032 KB n=500
40 Correct 14 ms 23972 KB n=500
41 Correct 14 ms 23952 KB n=500
42 Correct 15 ms 23952 KB n=500
43 Correct 14 ms 24012 KB n=500
44 Correct 14 ms 24036 KB n=500
45 Correct 14 ms 24012 KB n=500
46 Correct 14 ms 24052 KB n=500
47 Correct 15 ms 24016 KB n=500
48 Correct 14 ms 23988 KB n=500
49 Correct 15 ms 24012 KB n=500
50 Correct 14 ms 24036 KB n=500
51 Correct 14 ms 24004 KB n=500
52 Correct 14 ms 24012 KB n=500
53 Correct 14 ms 24012 KB n=500
54 Correct 14 ms 24048 KB n=500
55 Correct 13 ms 23884 KB n=278
56 Correct 14 ms 23964 KB n=500
57 Correct 14 ms 24012 KB n=500
58 Correct 15 ms 24012 KB n=500
59 Correct 17 ms 24556 KB n=2000
60 Correct 16 ms 24652 KB n=2000
61 Correct 17 ms 24564 KB n=2000
62 Correct 17 ms 24568 KB n=2000
63 Correct 17 ms 24436 KB n=2000
64 Correct 17 ms 24524 KB n=2000
65 Correct 17 ms 24524 KB n=2000
66 Correct 16 ms 24620 KB n=2000
67 Correct 17 ms 24444 KB n=2000
68 Correct 16 ms 24524 KB n=2000
69 Correct 17 ms 24540 KB n=2000
70 Correct 17 ms 24568 KB n=2000
71 Correct 16 ms 24484 KB n=2000
72 Correct 16 ms 24524 KB n=2000
73 Correct 16 ms 24484 KB n=2000
74 Correct 16 ms 24408 KB n=1844
75 Correct 16 ms 24468 KB n=2000
76 Correct 17 ms 24524 KB n=2000
77 Correct 17 ms 24544 KB n=2000
78 Correct 17 ms 24524 KB n=2000
79 Correct 17 ms 24480 KB n=2000
80 Correct 16 ms 24652 KB n=2000
81 Correct 17 ms 24492 KB n=2000
82 Correct 17 ms 24524 KB n=2000
83 Correct 16 ms 24572 KB n=2000
84 Correct 17 ms 24560 KB n=2000
85 Correct 17 ms 24504 KB n=2000
86 Correct 16 ms 24524 KB n=2000
87 Correct 18 ms 24524 KB n=2000
88 Correct 16 ms 24780 KB n=2000
89 Correct 17 ms 24704 KB n=2000
90 Correct 16 ms 24652 KB n=2000
91 Correct 16 ms 24524 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23756 KB n=5
2 Correct 13 ms 23884 KB n=100
3 Correct 13 ms 23884 KB n=100
4 Correct 13 ms 23856 KB n=100
5 Correct 13 ms 23884 KB n=100
6 Correct 13 ms 23868 KB n=100
7 Correct 13 ms 23824 KB n=100
8 Correct 14 ms 23884 KB n=100
9 Correct 15 ms 23832 KB n=100
10 Correct 13 ms 23884 KB n=100
11 Correct 14 ms 23896 KB n=100
12 Correct 13 ms 23900 KB n=100
13 Correct 14 ms 23872 KB n=100
14 Correct 13 ms 23884 KB n=100
15 Correct 13 ms 23884 KB n=100
16 Correct 13 ms 23884 KB n=100
17 Correct 13 ms 23876 KB n=100
18 Correct 13 ms 23884 KB n=100
19 Correct 13 ms 23812 KB n=100
20 Correct 13 ms 23884 KB n=100
21 Correct 13 ms 23884 KB n=100
22 Correct 13 ms 23884 KB n=100
23 Correct 14 ms 23884 KB n=100
24 Correct 13 ms 23884 KB n=100
25 Correct 13 ms 23896 KB n=100
26 Correct 13 ms 23756 KB n=12
27 Correct 15 ms 23904 KB n=100
28 Correct 14 ms 24012 KB n=500
29 Correct 14 ms 24012 KB n=500
30 Correct 16 ms 24012 KB n=500
31 Correct 14 ms 24012 KB n=500
32 Correct 14 ms 24024 KB n=500
33 Correct 14 ms 24012 KB n=500
34 Correct 14 ms 24012 KB n=500
35 Correct 14 ms 24004 KB n=500
36 Correct 14 ms 23992 KB n=500
37 Correct 14 ms 24012 KB n=500
38 Correct 14 ms 23980 KB n=500
39 Correct 15 ms 24032 KB n=500
40 Correct 14 ms 23972 KB n=500
41 Correct 14 ms 23952 KB n=500
42 Correct 15 ms 23952 KB n=500
43 Correct 14 ms 24012 KB n=500
44 Correct 14 ms 24036 KB n=500
45 Correct 14 ms 24012 KB n=500
46 Correct 14 ms 24052 KB n=500
47 Correct 15 ms 24016 KB n=500
48 Correct 14 ms 23988 KB n=500
49 Correct 15 ms 24012 KB n=500
50 Correct 14 ms 24036 KB n=500
51 Correct 14 ms 24004 KB n=500
52 Correct 14 ms 24012 KB n=500
53 Correct 14 ms 24012 KB n=500
54 Correct 14 ms 24048 KB n=500
55 Correct 13 ms 23884 KB n=278
56 Correct 14 ms 23964 KB n=500
57 Correct 14 ms 24012 KB n=500
58 Correct 15 ms 24012 KB n=500
59 Correct 17 ms 24556 KB n=2000
60 Correct 16 ms 24652 KB n=2000
61 Correct 17 ms 24564 KB n=2000
62 Correct 17 ms 24568 KB n=2000
63 Correct 17 ms 24436 KB n=2000
64 Correct 17 ms 24524 KB n=2000
65 Correct 17 ms 24524 KB n=2000
66 Correct 16 ms 24620 KB n=2000
67 Correct 17 ms 24444 KB n=2000
68 Correct 16 ms 24524 KB n=2000
69 Correct 17 ms 24540 KB n=2000
70 Correct 17 ms 24568 KB n=2000
71 Correct 16 ms 24484 KB n=2000
72 Correct 16 ms 24524 KB n=2000
73 Correct 16 ms 24484 KB n=2000
74 Correct 16 ms 24408 KB n=1844
75 Correct 16 ms 24468 KB n=2000
76 Correct 17 ms 24524 KB n=2000
77 Correct 17 ms 24544 KB n=2000
78 Correct 17 ms 24524 KB n=2000
79 Correct 17 ms 24480 KB n=2000
80 Correct 16 ms 24652 KB n=2000
81 Correct 17 ms 24492 KB n=2000
82 Correct 17 ms 24524 KB n=2000
83 Correct 16 ms 24572 KB n=2000
84 Correct 17 ms 24560 KB n=2000
85 Correct 17 ms 24504 KB n=2000
86 Correct 16 ms 24524 KB n=2000
87 Correct 18 ms 24524 KB n=2000
88 Correct 16 ms 24780 KB n=2000
89 Correct 17 ms 24704 KB n=2000
90 Correct 16 ms 24652 KB n=2000
91 Correct 16 ms 24524 KB n=2000
92 Correct 784 ms 109416 KB n=200000
93 Correct 716 ms 119408 KB n=200000
94 Correct 647 ms 129408 KB n=200000
95 Correct 730 ms 115708 KB n=200000
96 Correct 696 ms 115692 KB n=200000
97 Correct 707 ms 122372 KB n=200000
98 Correct 722 ms 115636 KB n=200000
99 Correct 801 ms 115844 KB n=200000
100 Correct 719 ms 115764 KB n=200000
101 Correct 676 ms 131512 KB n=200000
102 Correct 451 ms 116932 KB n=200000
103 Correct 460 ms 116852 KB n=200000
104 Correct 443 ms 116908 KB n=200000
105 Correct 440 ms 117244 KB n=200000
106 Correct 485 ms 117192 KB n=200000
107 Correct 446 ms 117184 KB n=200000
108 Correct 791 ms 115712 KB n=200000
109 Correct 796 ms 115688 KB n=200000
110 Correct 753 ms 115780 KB n=200000
111 Correct 693 ms 115160 KB n=200000
112 Correct 678 ms 129896 KB n=200000
113 Correct 758 ms 122364 KB n=200000
114 Correct 753 ms 115160 KB n=200000
115 Correct 854 ms 118756 KB n=200000
116 Correct 712 ms 115760 KB n=200000
117 Correct 675 ms 130680 KB n=200000
118 Correct 766 ms 120512 KB n=200000
119 Correct 719 ms 115896 KB n=200000
120 Correct 635 ms 130536 KB n=200000
121 Correct 630 ms 130500 KB n=200000
122 Correct 620 ms 130892 KB n=200000
123 Correct 482 ms 117048 KB n=200000
124 Correct 190 ms 43460 KB n=25264