oj.uz

Submission #860474

# Submission time Handle Problem Language Result Execution time Memory
860474 2023-10-13T04:39:17 Z aykhn Birthday gift (IZhO18_treearray) C++14
100 / 100
 1330 ms 101204 KB 
#include <bits/stdc++.h>
 
// author : aykhn
 
using namespace std;
typedef long long ll;
 
#define pb push_back
#define ins insert
#define mpr make_pair
#define all(v) v.begin(), v.end()
#define bpc __builtin_popcount
#define pii pair<int, int>
#define pll pair<ll, ll>
#define fi first
#define se second
#define int ll
#define infll 0x3F3F3F3F3F3F3F3F
#define inf 0x3F3F3F3F

const int MXN = 2e5 + 5;
const int LOG = 19;

int n, sz = 1;
int a[MXN];
int par[LOG][MXN], in[MXN], out[MXN];
vector<int> adj[MXN];
set<int> idx[MXN], id[MXN];
int tim = -1;

void dfs(int a, int p)
{
    in[a] = ++tim;
    for (int v : adj[a])
    {
        if (v == p) continue;
        par[0][v] = a;
        dfs(v, a);
    }
    out[a] = ++tim;
}

bool anc(int u, int v)
{
    return in[u] <= in[v] && out[v] <= out[u];
}

int LCA(int u, int v)
{
    if (anc(u, v)) return u;
    if (anc(v, u)) return v;
    for (int i = LOG - 1; i >= 0; i--)
    {
        if (anc(par[i][u], v)) continue;
        u = par[i][u];
    }
    return par[0][u];
}


signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(nullptr);
    int n, m, q;
    cin >> n >> m >> q;
    for (int i = 1; i < n; i++)
    {
        int u, v;
        cin >> u >> v;
        adj[u].pb(v);
        adj[v].pb(u);
    }
    par[0][1] = 1;
    dfs(1, 1);
    for (int i = 1; i < LOG; i++)
    {
        for (int j = 1; j <= n; j++) par[i][j] = par[i - 1][par[i - 1][j]];
    }
    for (int i = 0; i < m; i++) 
    {
        cin >> a[i];
        id[a[i]].ins(i);
    }
    for (int i = 0; i + 1 < m; i++)
    {
        int lca = LCA(a[i], a[i + 1]);
        idx[lca].ins(i);
    }
    while (q--)
    {
        int type;
        cin >> type;
        if (type == 1)
        {
            int pos, v;
            cin >> pos >> v;
            pos--;
            id[a[pos]].erase(pos);
            id[v].ins(pos);
            if (pos) 
            {
                int lca = LCA(a[pos - 1], a[pos]);
                idx[lca].erase(pos - 1);
            }
            if (pos + 1 < m)
            {
                int lca = LCA(a[pos], a[pos + 1]);
                idx[lca].erase(pos);
            }
            a[pos] = v;
            if (pos) 
            {
                int lca = LCA(a[pos - 1], a[pos]);
                idx[lca].ins(pos - 1);
            }
            if (pos + 1 < m)
            {
                int lca = LCA(a[pos], a[pos + 1]);
                idx[lca].ins(pos);
            }
        }
        else
        {
            int l, r, v;
            cin >> l >> r >> v;
            l--;
            r--;
            auto it = id[v].lower_bound(l);
            if (it != id[v].end() && *it <= r)
            {
                cout << *it + 1 << " " << *it + 1 << '\n';
                continue;
            }
            auto it1 = idx[v].lower_bound(l);
            if (it1 != idx[v].end() && *it1 < r)
            {
                cout << *it1 + 1 << " " << *it1 + 2 << '\n';
                continue;
            }
            cout << "-1 -1" << '\n';
        }
    }

}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 57944 KB n=5
2 Correct 8 ms 57948 KB n=100
3 Correct 9 ms 57948 KB n=100
4 Correct 9 ms 57948 KB n=100
5 Correct 9 ms 58032 KB n=100
6 Correct 8 ms 57948 KB n=100
7 Correct 8 ms 57944 KB n=100
8 Correct 8 ms 57948 KB n=100
9 Correct 8 ms 57948 KB n=100
10 Correct 8 ms 57944 KB n=100
11 Correct 9 ms 57944 KB n=100
12 Correct 9 ms 57948 KB n=100
13 Correct 8 ms 57948 KB n=100
14 Correct 8 ms 57944 KB n=100
15 Correct 8 ms 57948 KB n=100
16 Correct 8 ms 57948 KB n=100
17 Correct 9 ms 58104 KB n=100
18 Correct 8 ms 57944 KB n=100
19 Correct 8 ms 57948 KB n=100
20 Correct 8 ms 57944 KB n=100
21 Correct 8 ms 57948 KB n=100
22 Correct 8 ms 58044 KB n=100
23 Correct 8 ms 57948 KB n=100
24 Correct 8 ms 57984 KB n=100
25 Correct 9 ms 57948 KB n=100
26 Correct 8 ms 58104 KB n=12
27 Correct 8 ms 57948 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 57944 KB n=5
2 Correct 8 ms 57948 KB n=100
3 Correct 9 ms 57948 KB n=100
4 Correct 9 ms 57948 KB n=100
5 Correct 9 ms 58032 KB n=100
6 Correct 8 ms 57948 KB n=100
7 Correct 8 ms 57944 KB n=100
8 Correct 8 ms 57948 KB n=100
9 Correct 8 ms 57948 KB n=100
10 Correct 8 ms 57944 KB n=100
11 Correct 9 ms 57944 KB n=100
12 Correct 9 ms 57948 KB n=100
13 Correct 8 ms 57948 KB n=100
14 Correct 8 ms 57944 KB n=100
15 Correct 8 ms 57948 KB n=100
16 Correct 8 ms 57948 KB n=100
17 Correct 9 ms 58104 KB n=100
18 Correct 8 ms 57944 KB n=100
19 Correct 8 ms 57948 KB n=100
20 Correct 8 ms 57944 KB n=100
21 Correct 8 ms 57948 KB n=100
22 Correct 8 ms 58044 KB n=100
23 Correct 8 ms 57948 KB n=100
24 Correct 8 ms 57984 KB n=100
25 Correct 9 ms 57948 KB n=100
26 Correct 8 ms 58104 KB n=12
27 Correct 8 ms 57948 KB n=100
28 Correct 10 ms 58200 KB n=500
29 Correct 9 ms 57948 KB n=500
30 Correct 9 ms 57980 KB n=500
31 Correct 9 ms 58136 KB n=500
32 Correct 9 ms 57944 KB n=500
33 Correct 9 ms 57948 KB n=500
34 Correct 9 ms 57948 KB n=500
35 Correct 9 ms 57948 KB n=500
36 Correct 9 ms 57944 KB n=500
37 Correct 9 ms 57948 KB n=500
38 Correct 9 ms 57948 KB n=500
39 Correct 8 ms 57948 KB n=500
40 Correct 9 ms 57948 KB n=500
41 Correct 9 ms 57992 KB n=500
42 Correct 9 ms 57944 KB n=500
43 Correct 9 ms 58172 KB n=500
44 Correct 9 ms 58176 KB n=500
45 Correct 9 ms 57948 KB n=500
46 Correct 9 ms 57948 KB n=500
47 Correct 9 ms 57944 KB n=500
48 Correct 9 ms 57944 KB n=500
49 Correct 9 ms 57944 KB n=500
50 Correct 9 ms 58048 KB n=500
51 Correct 9 ms 57944 KB n=500
52 Correct 9 ms 57948 KB n=500
53 Correct 9 ms 57948 KB n=500
54 Correct 9 ms 57948 KB n=500
55 Correct 8 ms 57948 KB n=278
56 Correct 9 ms 57948 KB n=500
57 Correct 9 ms 57948 KB n=500
58 Correct 9 ms 57944 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 57944 KB n=5
2 Correct 8 ms 57948 KB n=100
3 Correct 9 ms 57948 KB n=100
4 Correct 9 ms 57948 KB n=100
5 Correct 9 ms 58032 KB n=100
6 Correct 8 ms 57948 KB n=100
7 Correct 8 ms 57944 KB n=100
8 Correct 8 ms 57948 KB n=100
9 Correct 8 ms 57948 KB n=100
10 Correct 8 ms 57944 KB n=100
11 Correct 9 ms 57944 KB n=100
12 Correct 9 ms 57948 KB n=100
13 Correct 8 ms 57948 KB n=100
14 Correct 8 ms 57944 KB n=100
15 Correct 8 ms 57948 KB n=100
16 Correct 8 ms 57948 KB n=100
17 Correct 9 ms 58104 KB n=100
18 Correct 8 ms 57944 KB n=100
19 Correct 8 ms 57948 KB n=100
20 Correct 8 ms 57944 KB n=100
21 Correct 8 ms 57948 KB n=100
22 Correct 8 ms 58044 KB n=100
23 Correct 8 ms 57948 KB n=100
24 Correct 8 ms 57984 KB n=100
25 Correct 9 ms 57948 KB n=100
26 Correct 8 ms 58104 KB n=12
27 Correct 8 ms 57948 KB n=100
28 Correct 10 ms 58200 KB n=500
29 Correct 9 ms 57948 KB n=500
30 Correct 9 ms 57980 KB n=500
31 Correct 9 ms 58136 KB n=500
32 Correct 9 ms 57944 KB n=500
33 Correct 9 ms 57948 KB n=500
34 Correct 9 ms 57948 KB n=500
35 Correct 9 ms 57948 KB n=500
36 Correct 9 ms 57944 KB n=500
37 Correct 9 ms 57948 KB n=500
38 Correct 9 ms 57948 KB n=500
39 Correct 8 ms 57948 KB n=500
40 Correct 9 ms 57948 KB n=500
41 Correct 9 ms 57992 KB n=500
42 Correct 9 ms 57944 KB n=500
43 Correct 9 ms 58172 KB n=500
44 Correct 9 ms 58176 KB n=500
45 Correct 9 ms 57948 KB n=500
46 Correct 9 ms 57948 KB n=500
47 Correct 9 ms 57944 KB n=500
48 Correct 9 ms 57944 KB n=500
49 Correct 9 ms 57944 KB n=500
50 Correct 9 ms 58048 KB n=500
51 Correct 9 ms 57944 KB n=500
52 Correct 9 ms 57948 KB n=500
53 Correct 9 ms 57948 KB n=500
54 Correct 9 ms 57948 KB n=500
55 Correct 8 ms 57948 KB n=278
56 Correct 9 ms 57948 KB n=500
57 Correct 9 ms 57948 KB n=500
58 Correct 9 ms 57944 KB n=500
59 Correct 12 ms 58204 KB n=2000
60 Correct 10 ms 58456 KB n=2000
61 Correct 10 ms 58408 KB n=2000
62 Correct 13 ms 58968 KB n=2000
63 Correct 12 ms 58248 KB n=2000
64 Correct 11 ms 58204 KB n=2000
65 Correct 11 ms 58204 KB n=2000
66 Correct 11 ms 58460 KB n=2000
67 Correct 11 ms 58200 KB n=2000
68 Correct 12 ms 58456 KB n=2000
69 Correct 10 ms 58204 KB n=2000
70 Correct 12 ms 58204 KB n=2000
71 Correct 10 ms 58204 KB n=2000
72 Correct 11 ms 58200 KB n=2000
73 Correct 10 ms 58204 KB n=2000
74 Correct 11 ms 58200 KB n=1844
75 Correct 10 ms 58408 KB n=2000
76 Correct 11 ms 58204 KB n=2000
77 Correct 11 ms 58208 KB n=2000
78 Correct 11 ms 58204 KB n=2000
79 Correct 11 ms 58204 KB n=2000
80 Correct 10 ms 58460 KB n=2000
81 Correct 11 ms 58204 KB n=2000
82 Correct 11 ms 58200 KB n=2000
83 Correct 10 ms 58456 KB n=2000
84 Correct 11 ms 58204 KB n=2000
85 Correct 11 ms 58200 KB n=2000
86 Correct 12 ms 58204 KB n=2000
87 Correct 11 ms 58204 KB n=2000
88 Correct 10 ms 58456 KB n=2000
89 Correct 11 ms 58456 KB n=2000
90 Correct 10 ms 58460 KB n=2000
91 Correct 10 ms 58204 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 57944 KB n=5
2 Correct 8 ms 57948 KB n=100
3 Correct 9 ms 57948 KB n=100
4 Correct 9 ms 57948 KB n=100
5 Correct 9 ms 58032 KB n=100
6 Correct 8 ms 57948 KB n=100
7 Correct 8 ms 57944 KB n=100
8 Correct 8 ms 57948 KB n=100
9 Correct 8 ms 57948 KB n=100
10 Correct 8 ms 57944 KB n=100
11 Correct 9 ms 57944 KB n=100
12 Correct 9 ms 57948 KB n=100
13 Correct 8 ms 57948 KB n=100
14 Correct 8 ms 57944 KB n=100
15 Correct 8 ms 57948 KB n=100
16 Correct 8 ms 57948 KB n=100
17 Correct 9 ms 58104 KB n=100
18 Correct 8 ms 57944 KB n=100
19 Correct 8 ms 57948 KB n=100
20 Correct 8 ms 57944 KB n=100
21 Correct 8 ms 57948 KB n=100
22 Correct 8 ms 58044 KB n=100
23 Correct 8 ms 57948 KB n=100
24 Correct 8 ms 57984 KB n=100
25 Correct 9 ms 57948 KB n=100
26 Correct 8 ms 58104 KB n=12
27 Correct 8 ms 57948 KB n=100
28 Correct 10 ms 58200 KB n=500
29 Correct 9 ms 57948 KB n=500
30 Correct 9 ms 57980 KB n=500
31 Correct 9 ms 58136 KB n=500
32 Correct 9 ms 57944 KB n=500
33 Correct 9 ms 57948 KB n=500
34 Correct 9 ms 57948 KB n=500
35 Correct 9 ms 57948 KB n=500
36 Correct 9 ms 57944 KB n=500
37 Correct 9 ms 57948 KB n=500
38 Correct 9 ms 57948 KB n=500
39 Correct 8 ms 57948 KB n=500
40 Correct 9 ms 57948 KB n=500
41 Correct 9 ms 57992 KB n=500
42 Correct 9 ms 57944 KB n=500
43 Correct 9 ms 58172 KB n=500
44 Correct 9 ms 58176 KB n=500
45 Correct 9 ms 57948 KB n=500
46 Correct 9 ms 57948 KB n=500
47 Correct 9 ms 57944 KB n=500
48 Correct 9 ms 57944 KB n=500
49 Correct 9 ms 57944 KB n=500
50 Correct 9 ms 58048 KB n=500
51 Correct 9 ms 57944 KB n=500
52 Correct 9 ms 57948 KB n=500
53 Correct 9 ms 57948 KB n=500
54 Correct 9 ms 57948 KB n=500
55 Correct 8 ms 57948 KB n=278
56 Correct 9 ms 57948 KB n=500
57 Correct 9 ms 57948 KB n=500
58 Correct 9 ms 57944 KB n=500
59 Correct 12 ms 58204 KB n=2000
60 Correct 10 ms 58456 KB n=2000
61 Correct 10 ms 58408 KB n=2000
62 Correct 13 ms 58968 KB n=2000
63 Correct 12 ms 58248 KB n=2000
64 Correct 11 ms 58204 KB n=2000
65 Correct 11 ms 58204 KB n=2000
66 Correct 11 ms 58460 KB n=2000
67 Correct 11 ms 58200 KB n=2000
68 Correct 12 ms 58456 KB n=2000
69 Correct 10 ms 58204 KB n=2000
70 Correct 12 ms 58204 KB n=2000
71 Correct 10 ms 58204 KB n=2000
72 Correct 11 ms 58200 KB n=2000
73 Correct 10 ms 58204 KB n=2000
74 Correct 11 ms 58200 KB n=1844
75 Correct 10 ms 58408 KB n=2000
76 Correct 11 ms 58204 KB n=2000
77 Correct 11 ms 58208 KB n=2000
78 Correct 11 ms 58204 KB n=2000
79 Correct 11 ms 58204 KB n=2000
80 Correct 10 ms 58460 KB n=2000
81 Correct 11 ms 58204 KB n=2000
82 Correct 11 ms 58200 KB n=2000
83 Correct 10 ms 58456 KB n=2000
84 Correct 11 ms 58204 KB n=2000
85 Correct 11 ms 58200 KB n=2000
86 Correct 12 ms 58204 KB n=2000
87 Correct 11 ms 58204 KB n=2000
88 Correct 10 ms 58456 KB n=2000
89 Correct 11 ms 58456 KB n=2000
90 Correct 10 ms 58460 KB n=2000
91 Correct 10 ms 58204 KB n=2000
92 Correct 1263 ms 92724 KB n=200000
93 Correct 851 ms 97640 KB n=200000
94 Correct 454 ms 100484 KB n=200000
95 Correct 1300 ms 92436 KB n=200000
96 Correct 1254 ms 92472 KB n=200000
97 Correct 918 ms 96648 KB n=200000
98 Correct 1330 ms 92644 KB n=200000
99 Correct 1157 ms 92912 KB n=200000
100 Correct 1250 ms 92636 KB n=200000
101 Correct 329 ms 101204 KB n=200000
102 Correct 502 ms 94092 KB n=200000
103 Correct 460 ms 93928 KB n=200000
104 Correct 446 ms 93880 KB n=200000
105 Correct 471 ms 94352 KB n=200000
106 Correct 467 ms 94636 KB n=200000
107 Correct 480 ms 94288 KB n=200000
108 Correct 1164 ms 92760 KB n=200000
109 Correct 1171 ms 92780 KB n=200000
110 Correct 1071 ms 92656 KB n=200000
111 Correct 1055 ms 91900 KB n=200000
112 Correct 441 ms 100552 KB n=200000
113 Correct 878 ms 96596 KB n=200000
114 Correct 1088 ms 92272 KB n=200000
115 Correct 1212 ms 94548 KB n=200000
116 Correct 1300 ms 92848 KB n=200000
117 Correct 362 ms 100692 KB n=200000
118 Correct 1106 ms 95840 KB n=200000
119 Correct 1207 ms 92756 KB n=200000
120 Correct 291 ms 100180 KB n=200000
121 Correct 359 ms 100272 KB n=200000
122 Correct 367 ms 100464 KB n=200000
123 Correct 515 ms 93948 KB n=200000
124 Correct 119 ms 70544 KB n=25264