oj.uz

Submission #683836

# Submission time Handle Problem Language Result Execution time Memory
683836 2023-01-19T12:38:14 Z opPO Birthday gift (IZhO18_treearray) C++17
100 / 100
 1104 ms 93732 KB 
#pragma GCC optimize("O3,unroll-loops")
#include <bits/stdc++.h>

using namespace std;

#define int long long
#define f first
#define s second
#define pb push_back
#define ld long double
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define vec vector

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

mt19937_64 gen(chrono::steady_clock::now().time_since_epoch().count());
const ld eps = 1e-6;
const int mod = 998244353;
const int oo = 2e9;
const ll OO = 2e18;
const int N = 2e5 + 10;
const int K = 20;
int n, m, q, a[N], timer, tin[N], tout[N], p[N][K];
vec<int> g[N];
set<pii> pos[N];

void dfs(int v, int pr = 1)
{
    tin[v] = ++timer;
    p[v][0] = pr;
    for (int k = 1; k < K; k++) p[v][k] = p[p[v][k - 1]][k - 1];
    for (int &to : g[v])
    {
        if (to == pr) continue;
        dfs(to, v);
    }
    tout[v] = timer;
}

bool upper(int u, int v)
{
    return tin[u] <= tin[v] && tout[u] >= tout[v];
}

int LCA(int u, int v)
{
    if (upper(u, v)) return u;
    if (upper(v, u)) return v;
    for (int k = K - 1; k >= 0; k--) if (!upper(p[u][k], v)) u = p[u][k];
    return p[u][0];
}

void solve()
{
    cin >> n >> m >> q;
    for (int i = 1; i < n; i++)
    {
        int u, v;
        cin >> u >> v;
        g[u].pb(v);
        g[v].pb(u);
    }
    dfs(1);
    for (int i = 1; i <= m; i++) cin >> a[i];
    for (int i = 1; i <= m; i++)
    {
        pos[a[i]].insert({i, i});
        if (i + 1 <= m) pos[LCA(a[i], a[i + 1])].insert({i, i + 1});
    }
    while (q--)
    {
        int type;
        cin >> type;
        if (type == 1)
        {
            int idx, v;
            cin >> idx >> v;
            pos[a[idx]].erase({idx, idx});
            if (idx > 1) pos[LCA(a[idx - 1], a[idx])].erase({idx - 1, idx});
            if (idx + 1 <= m) pos[LCA(a[idx], a[idx + 1])].erase({idx, idx + 1});
            a[idx] = v;
            pos[a[idx]].insert({idx, idx});
            if (idx > 1) pos[LCA(a[idx - 1], a[idx])].insert({idx - 1, idx});
            if (idx + 1 <= m) pos[LCA(a[idx], a[idx + 1])].insert({idx, idx + 1});
        }
        else
        {
            int l, r, v;
            cin >> l >> r >> v;
            auto it = pos[v].lower_bound({l, l});
            if (it == pos[v].end()) cout << "-1 -1";
            else
            {
                pii p = *it;
                if (p.f >= l && p.s <= r) cout << p.f << " " << p.s;
                else cout << "-1 -1";
            }
            cout << "\n";
        }
    }
}

int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    solve();
    return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB n=5
2 Correct 8 ms 14344 KB n=100
3 Correct 8 ms 14420 KB n=100
4 Correct 8 ms 14420 KB n=100
5 Correct 8 ms 14420 KB n=100
6 Correct 8 ms 14420 KB n=100
7 Correct 8 ms 14420 KB n=100
8 Correct 9 ms 14416 KB n=100
9 Correct 8 ms 14448 KB n=100
10 Correct 8 ms 14420 KB n=100
11 Correct 8 ms 14420 KB n=100
12 Correct 8 ms 14416 KB n=100
13 Correct 9 ms 14416 KB n=100
14 Correct 10 ms 14416 KB n=100
15 Correct 8 ms 14460 KB n=100
16 Correct 9 ms 14420 KB n=100
17 Correct 7 ms 14420 KB n=100
18 Correct 8 ms 14420 KB n=100
19 Correct 8 ms 14420 KB n=100
20 Correct 9 ms 14420 KB n=100
21 Correct 8 ms 14420 KB n=100
22 Correct 9 ms 14440 KB n=100
23 Correct 8 ms 14420 KB n=100
24 Correct 8 ms 14424 KB n=100
25 Correct 8 ms 14420 KB n=100
26 Correct 8 ms 14420 KB n=12
27 Correct 8 ms 14424 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB n=5
2 Correct 8 ms 14344 KB n=100
3 Correct 8 ms 14420 KB n=100
4 Correct 8 ms 14420 KB n=100
5 Correct 8 ms 14420 KB n=100
6 Correct 8 ms 14420 KB n=100
7 Correct 8 ms 14420 KB n=100
8 Correct 9 ms 14416 KB n=100
9 Correct 8 ms 14448 KB n=100
10 Correct 8 ms 14420 KB n=100
11 Correct 8 ms 14420 KB n=100
12 Correct 8 ms 14416 KB n=100
13 Correct 9 ms 14416 KB n=100
14 Correct 10 ms 14416 KB n=100
15 Correct 8 ms 14460 KB n=100
16 Correct 9 ms 14420 KB n=100
17 Correct 7 ms 14420 KB n=100
18 Correct 8 ms 14420 KB n=100
19 Correct 8 ms 14420 KB n=100
20 Correct 9 ms 14420 KB n=100
21 Correct 8 ms 14420 KB n=100
22 Correct 9 ms 14440 KB n=100
23 Correct 8 ms 14420 KB n=100
24 Correct 8 ms 14424 KB n=100
25 Correct 8 ms 14420 KB n=100
26 Correct 8 ms 14420 KB n=12
27 Correct 8 ms 14424 KB n=100
28 Correct 9 ms 14556 KB n=500
29 Correct 9 ms 14548 KB n=500
30 Correct 9 ms 14548 KB n=500
31 Correct 8 ms 14568 KB n=500
32 Correct 9 ms 14548 KB n=500
33 Correct 10 ms 14548 KB n=500
34 Correct 9 ms 14548 KB n=500
35 Correct 9 ms 14644 KB n=500
36 Correct 9 ms 14556 KB n=500
37 Correct 9 ms 14528 KB n=500
38 Correct 9 ms 14612 KB n=500
39 Correct 8 ms 14676 KB n=500
40 Correct 8 ms 14564 KB n=500
41 Correct 8 ms 14548 KB n=500
42 Correct 8 ms 14676 KB n=500
43 Correct 10 ms 14548 KB n=500
44 Correct 10 ms 14624 KB n=500
45 Correct 9 ms 14536 KB n=500
46 Correct 8 ms 14556 KB n=500
47 Correct 9 ms 14568 KB n=500
48 Correct 8 ms 14548 KB n=500
49 Correct 11 ms 14548 KB n=500
50 Correct 9 ms 14596 KB n=500
51 Correct 10 ms 14548 KB n=500
52 Correct 8 ms 14596 KB n=500
53 Correct 8 ms 14560 KB n=500
54 Correct 8 ms 14548 KB n=500
55 Correct 9 ms 14476 KB n=278
56 Correct 9 ms 14532 KB n=500
57 Correct 8 ms 14548 KB n=500
58 Correct 9 ms 14548 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB n=5
2 Correct 8 ms 14344 KB n=100
3 Correct 8 ms 14420 KB n=100
4 Correct 8 ms 14420 KB n=100
5 Correct 8 ms 14420 KB n=100
6 Correct 8 ms 14420 KB n=100
7 Correct 8 ms 14420 KB n=100
8 Correct 9 ms 14416 KB n=100
9 Correct 8 ms 14448 KB n=100
10 Correct 8 ms 14420 KB n=100
11 Correct 8 ms 14420 KB n=100
12 Correct 8 ms 14416 KB n=100
13 Correct 9 ms 14416 KB n=100
14 Correct 10 ms 14416 KB n=100
15 Correct 8 ms 14460 KB n=100
16 Correct 9 ms 14420 KB n=100
17 Correct 7 ms 14420 KB n=100
18 Correct 8 ms 14420 KB n=100
19 Correct 8 ms 14420 KB n=100
20 Correct 9 ms 14420 KB n=100
21 Correct 8 ms 14420 KB n=100
22 Correct 9 ms 14440 KB n=100
23 Correct 8 ms 14420 KB n=100
24 Correct 8 ms 14424 KB n=100
25 Correct 8 ms 14420 KB n=100
26 Correct 8 ms 14420 KB n=12
27 Correct 8 ms 14424 KB n=100
28 Correct 9 ms 14556 KB n=500
29 Correct 9 ms 14548 KB n=500
30 Correct 9 ms 14548 KB n=500
31 Correct 8 ms 14568 KB n=500
32 Correct 9 ms 14548 KB n=500
33 Correct 10 ms 14548 KB n=500
34 Correct 9 ms 14548 KB n=500
35 Correct 9 ms 14644 KB n=500
36 Correct 9 ms 14556 KB n=500
37 Correct 9 ms 14528 KB n=500
38 Correct 9 ms 14612 KB n=500
39 Correct 8 ms 14676 KB n=500
40 Correct 8 ms 14564 KB n=500
41 Correct 8 ms 14548 KB n=500
42 Correct 8 ms 14676 KB n=500
43 Correct 10 ms 14548 KB n=500
44 Correct 10 ms 14624 KB n=500
45 Correct 9 ms 14536 KB n=500
46 Correct 8 ms 14556 KB n=500
47 Correct 9 ms 14568 KB n=500
48 Correct 8 ms 14548 KB n=500
49 Correct 11 ms 14548 KB n=500
50 Correct 9 ms 14596 KB n=500
51 Correct 10 ms 14548 KB n=500
52 Correct 8 ms 14596 KB n=500
53 Correct 8 ms 14560 KB n=500
54 Correct 8 ms 14548 KB n=500
55 Correct 9 ms 14476 KB n=278
56 Correct 9 ms 14532 KB n=500
57 Correct 8 ms 14548 KB n=500
58 Correct 9 ms 14548 KB n=500
59 Correct 13 ms 15188 KB n=2000
60 Correct 11 ms 15164 KB n=2000
61 Correct 11 ms 15188 KB n=2000
62 Correct 11 ms 15188 KB n=2000
63 Correct 11 ms 15188 KB n=2000
64 Correct 12 ms 15216 KB n=2000
65 Correct 11 ms 15188 KB n=2000
66 Correct 12 ms 15188 KB n=2000
67 Correct 12 ms 15188 KB n=2000
68 Correct 10 ms 15188 KB n=2000
69 Correct 11 ms 15160 KB n=2000
70 Correct 11 ms 15188 KB n=2000
71 Correct 11 ms 15188 KB n=2000
72 Correct 10 ms 15076 KB n=2000
73 Correct 10 ms 15188 KB n=2000
74 Correct 14 ms 15068 KB n=1844
75 Correct 10 ms 15188 KB n=2000
76 Correct 12 ms 15060 KB n=2000
77 Correct 11 ms 15076 KB n=2000
78 Correct 12 ms 15188 KB n=2000
79 Correct 11 ms 15188 KB n=2000
80 Correct 12 ms 15252 KB n=2000
81 Correct 12 ms 15200 KB n=2000
82 Correct 11 ms 15188 KB n=2000
83 Correct 11 ms 15196 KB n=2000
84 Correct 11 ms 15188 KB n=2000
85 Correct 10 ms 15188 KB n=2000
86 Correct 13 ms 15200 KB n=2000
87 Correct 12 ms 15172 KB n=2000
88 Correct 11 ms 15188 KB n=2000
89 Correct 9 ms 15188 KB n=2000
90 Correct 10 ms 15188 KB n=2000
91 Correct 10 ms 15188 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB n=5
2 Correct 8 ms 14344 KB n=100
3 Correct 8 ms 14420 KB n=100
4 Correct 8 ms 14420 KB n=100
5 Correct 8 ms 14420 KB n=100
6 Correct 8 ms 14420 KB n=100
7 Correct 8 ms 14420 KB n=100
8 Correct 9 ms 14416 KB n=100
9 Correct 8 ms 14448 KB n=100
10 Correct 8 ms 14420 KB n=100
11 Correct 8 ms 14420 KB n=100
12 Correct 8 ms 14416 KB n=100
13 Correct 9 ms 14416 KB n=100
14 Correct 10 ms 14416 KB n=100
15 Correct 8 ms 14460 KB n=100
16 Correct 9 ms 14420 KB n=100
17 Correct 7 ms 14420 KB n=100
18 Correct 8 ms 14420 KB n=100
19 Correct 8 ms 14420 KB n=100
20 Correct 9 ms 14420 KB n=100
21 Correct 8 ms 14420 KB n=100
22 Correct 9 ms 14440 KB n=100
23 Correct 8 ms 14420 KB n=100
24 Correct 8 ms 14424 KB n=100
25 Correct 8 ms 14420 KB n=100
26 Correct 8 ms 14420 KB n=12
27 Correct 8 ms 14424 KB n=100
28 Correct 9 ms 14556 KB n=500
29 Correct 9 ms 14548 KB n=500
30 Correct 9 ms 14548 KB n=500
31 Correct 8 ms 14568 KB n=500
32 Correct 9 ms 14548 KB n=500
33 Correct 10 ms 14548 KB n=500
34 Correct 9 ms 14548 KB n=500
35 Correct 9 ms 14644 KB n=500
36 Correct 9 ms 14556 KB n=500
37 Correct 9 ms 14528 KB n=500
38 Correct 9 ms 14612 KB n=500
39 Correct 8 ms 14676 KB n=500
40 Correct 8 ms 14564 KB n=500
41 Correct 8 ms 14548 KB n=500
42 Correct 8 ms 14676 KB n=500
43 Correct 10 ms 14548 KB n=500
44 Correct 10 ms 14624 KB n=500
45 Correct 9 ms 14536 KB n=500
46 Correct 8 ms 14556 KB n=500
47 Correct 9 ms 14568 KB n=500
48 Correct 8 ms 14548 KB n=500
49 Correct 11 ms 14548 KB n=500
50 Correct 9 ms 14596 KB n=500
51 Correct 10 ms 14548 KB n=500
52 Correct 8 ms 14596 KB n=500
53 Correct 8 ms 14560 KB n=500
54 Correct 8 ms 14548 KB n=500
55 Correct 9 ms 14476 KB n=278
56 Correct 9 ms 14532 KB n=500
57 Correct 8 ms 14548 KB n=500
58 Correct 9 ms 14548 KB n=500
59 Correct 13 ms 15188 KB n=2000
60 Correct 11 ms 15164 KB n=2000
61 Correct 11 ms 15188 KB n=2000
62 Correct 11 ms 15188 KB n=2000
63 Correct 11 ms 15188 KB n=2000
64 Correct 12 ms 15216 KB n=2000
65 Correct 11 ms 15188 KB n=2000
66 Correct 12 ms 15188 KB n=2000
67 Correct 12 ms 15188 KB n=2000
68 Correct 10 ms 15188 KB n=2000
69 Correct 11 ms 15160 KB n=2000
70 Correct 11 ms 15188 KB n=2000
71 Correct 11 ms 15188 KB n=2000
72 Correct 10 ms 15076 KB n=2000
73 Correct 10 ms 15188 KB n=2000
74 Correct 14 ms 15068 KB n=1844
75 Correct 10 ms 15188 KB n=2000
76 Correct 12 ms 15060 KB n=2000
77 Correct 11 ms 15076 KB n=2000
78 Correct 12 ms 15188 KB n=2000
79 Correct 11 ms 15188 KB n=2000
80 Correct 12 ms 15252 KB n=2000
81 Correct 12 ms 15200 KB n=2000
82 Correct 11 ms 15188 KB n=2000
83 Correct 11 ms 15196 KB n=2000
84 Correct 11 ms 15188 KB n=2000
85 Correct 10 ms 15188 KB n=2000
86 Correct 13 ms 15200 KB n=2000
87 Correct 12 ms 15172 KB n=2000
88 Correct 11 ms 15188 KB n=2000
89 Correct 9 ms 15188 KB n=2000
90 Correct 10 ms 15188 KB n=2000
91 Correct 10 ms 15188 KB n=2000
92 Correct 807 ms 86324 KB n=200000
93 Correct 944 ms 89912 KB n=200000
94 Correct 755 ms 92876 KB n=200000
95 Correct 740 ms 86244 KB n=200000
96 Correct 726 ms 86008 KB n=200000
97 Correct 949 ms 89080 KB n=200000
98 Correct 759 ms 85960 KB n=200000
99 Correct 863 ms 85636 KB n=200000
100 Correct 745 ms 86052 KB n=200000
101 Correct 482 ms 93732 KB n=200000
102 Correct 431 ms 87160 KB n=200000
103 Correct 428 ms 87156 KB n=200000
104 Correct 434 ms 87180 KB n=200000
105 Correct 425 ms 87056 KB n=200000
106 Correct 419 ms 86860 KB n=200000
107 Correct 412 ms 86768 KB n=200000
108 Correct 785 ms 85772 KB n=200000
109 Correct 761 ms 85872 KB n=200000
110 Correct 782 ms 85868 KB n=200000
111 Correct 861 ms 85804 KB n=200000
112 Correct 543 ms 92764 KB n=200000
113 Correct 893 ms 88872 KB n=200000
114 Correct 737 ms 85796 KB n=200000
115 Correct 1104 ms 86844 KB n=200000
116 Correct 680 ms 85776 KB n=200000
117 Correct 529 ms 93032 KB n=200000
118 Correct 1022 ms 87700 KB n=200000
119 Correct 682 ms 85528 KB n=200000
120 Correct 437 ms 93244 KB n=200000
121 Correct 451 ms 92856 KB n=200000
122 Correct 454 ms 93044 KB n=200000
123 Correct 415 ms 85844 KB n=200000
124 Correct 158 ms 33568 KB n=25264