oj.uz

Submission #879256

# Submission time Handle Problem Language Result Execution time Memory
879256 2023-11-27T04:38:03 Z The_Samurai Birthday gift (IZhO18_treearray) C++17
56 / 100
 4000 ms 38180 KB 
// I stand with PALESTINE




//#pragma GCC optimize("Ofast,O3")
//#pragma GCC target("avx,avx2")
#include "bits/stdc++.h"

using namespace std;
using ll = long long;
const int lg = 18;

vector<vector<int>> g, jump;
vector<int> tin, tout;
int z;

void dfs(int u) {
    if (u != 1) {
        for (int i = 1; i < lg; i++) {
            jump[i][u] = jump[i - 1][jump[i - 1][u]];
            if (!jump[i][u]) break;
        }
    }
    tin[u] = z++;
    for (int v: g[u]) {
        if (jump[0][u] == v) continue;
        jump[0][v] = u;
        dfs(v);
    }
    tout[u] = z++;
}

bool isPar(int u, int v) {
    return tin[u] <= tin[v] and tout[v] <= tout[u];
}

int lca(int u, int v) {
    if (v == 0 or isPar(u, v)) return u;
    if (u == 0 or isPar(v, u)) return v;
    for (int i = lg - 1; i >= 0; i--) {
        if (!jump[i][u] or isPar(jump[i][u], v)) continue;
        u = jump[i][u];
    }
    return jump[0][u];
}

void solve() {
    int n, m, q;
    cin >> n >> m >> q;
    g.assign(n + 1, {});
    jump.assign(lg, vector<int>(n + 1));
    tin.assign(n + 1, 0); tout.assign(n + 1, 0);
    for (int i = 1; i < n; i++) {
        int u, v;
        cin >> u >> v;
        g[u].emplace_back(v);
        g[v].emplace_back(u);
    }
    vector<int> a(m + 1);
    for (int i = 1; i <= m; i++) cin >> a[i];
    dfs(1);
    while (q--) {
        int op;
        cin >> op;
        if (op == 1) {
            int i;
            cin >> i >> a[i];
        } else {
            int l, r, root;
            cin >> l >> r >> root;
            int anc = 0;
            bool found = false;
            for (int lx = l, rx = l; rx <= r; rx++) {
                anc = lca(anc, a[rx]);
                if (anc == root) {
                    cout << lx << ' ' << rx << '\n';
                    found = true;
                    break;
                }
                if (!isPar(root, anc)) {
                    lx = rx + 1;
                    anc = 0;
                }
            }
            if (!found) cout << "-1 -1\n";
        }
    }
}

int main() {
    cin.tie(0)->sync_with_stdio(false);
#ifdef sunnatov
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    int q = 1;
//    cin >> q;
    while (q--) {
        solve();
        cout << '\n';
    }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n=5
2 Correct 0 ms 348 KB n=100
3 Correct 0 ms 448 KB n=100
4 Correct 1 ms 348 KB n=100
5 Correct 0 ms 348 KB n=100
6 Correct 0 ms 348 KB n=100
7 Correct 0 ms 600 KB n=100
8 Correct 0 ms 348 KB n=100
9 Correct 1 ms 348 KB n=100
10 Correct 1 ms 348 KB n=100
11 Correct 0 ms 344 KB n=100
12 Correct 1 ms 344 KB n=100
13 Correct 0 ms 348 KB n=100
14 Correct 0 ms 348 KB n=100
15 Correct 0 ms 344 KB n=100
16 Correct 0 ms 348 KB n=100
17 Correct 0 ms 348 KB n=100
18 Correct 0 ms 348 KB n=100
19 Correct 1 ms 620 KB n=100
20 Correct 0 ms 348 KB n=100
21 Correct 0 ms 348 KB n=100
22 Correct 0 ms 348 KB n=100
23 Correct 0 ms 348 KB n=100
24 Correct 0 ms 348 KB n=100
25 Correct 1 ms 348 KB n=100
26 Correct 0 ms 344 KB n=12
27 Correct 1 ms 348 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n=5
2 Correct 0 ms 348 KB n=100
3 Correct 0 ms 448 KB n=100
4 Correct 1 ms 348 KB n=100
5 Correct 0 ms 348 KB n=100
6 Correct 0 ms 348 KB n=100
7 Correct 0 ms 600 KB n=100
8 Correct 0 ms 348 KB n=100
9 Correct 1 ms 348 KB n=100
10 Correct 1 ms 348 KB n=100
11 Correct 0 ms 344 KB n=100
12 Correct 1 ms 344 KB n=100
13 Correct 0 ms 348 KB n=100
14 Correct 0 ms 348 KB n=100
15 Correct 0 ms 344 KB n=100
16 Correct 0 ms 348 KB n=100
17 Correct 0 ms 348 KB n=100
18 Correct 0 ms 348 KB n=100
19 Correct 1 ms 620 KB n=100
20 Correct 0 ms 348 KB n=100
21 Correct 0 ms 348 KB n=100
22 Correct 0 ms 348 KB n=100
23 Correct 0 ms 348 KB n=100
24 Correct 0 ms 348 KB n=100
25 Correct 1 ms 348 KB n=100
26 Correct 0 ms 344 KB n=12
27 Correct 1 ms 348 KB n=100
28 Correct 1 ms 348 KB n=500
29 Correct 1 ms 344 KB n=500
30 Correct 1 ms 348 KB n=500
31 Correct 1 ms 348 KB n=500
32 Correct 1 ms 348 KB n=500
33 Correct 1 ms 348 KB n=500
34 Correct 1 ms 464 KB n=500
35 Correct 1 ms 348 KB n=500
36 Correct 2 ms 348 KB n=500
37 Correct 2 ms 344 KB n=500
38 Correct 2 ms 348 KB n=500
39 Correct 2 ms 348 KB n=500
40 Correct 1 ms 348 KB n=500
41 Correct 2 ms 348 KB n=500
42 Correct 1 ms 348 KB n=500
43 Correct 1 ms 348 KB n=500
44 Correct 2 ms 344 KB n=500
45 Correct 1 ms 348 KB n=500
46 Correct 1 ms 344 KB n=500
47 Correct 1 ms 348 KB n=500
48 Correct 1 ms 348 KB n=500
49 Correct 1 ms 348 KB n=500
50 Correct 1 ms 348 KB n=500
51 Correct 1 ms 348 KB n=500
52 Correct 1 ms 348 KB n=500
53 Correct 1 ms 344 KB n=500
54 Correct 1 ms 348 KB n=500
55 Correct 1 ms 348 KB n=278
56 Correct 1 ms 348 KB n=500
57 Correct 1 ms 348 KB n=500
58 Correct 1 ms 348 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n=5
2 Correct 0 ms 348 KB n=100
3 Correct 0 ms 448 KB n=100
4 Correct 1 ms 348 KB n=100
5 Correct 0 ms 348 KB n=100
6 Correct 0 ms 348 KB n=100
7 Correct 0 ms 600 KB n=100
8 Correct 0 ms 348 KB n=100
9 Correct 1 ms 348 KB n=100
10 Correct 1 ms 348 KB n=100
11 Correct 0 ms 344 KB n=100
12 Correct 1 ms 344 KB n=100
13 Correct 0 ms 348 KB n=100
14 Correct 0 ms 348 KB n=100
15 Correct 0 ms 344 KB n=100
16 Correct 0 ms 348 KB n=100
17 Correct 0 ms 348 KB n=100
18 Correct 0 ms 348 KB n=100
19 Correct 1 ms 620 KB n=100
20 Correct 0 ms 348 KB n=100
21 Correct 0 ms 348 KB n=100
22 Correct 0 ms 348 KB n=100
23 Correct 0 ms 348 KB n=100
24 Correct 0 ms 348 KB n=100
25 Correct 1 ms 348 KB n=100
26 Correct 0 ms 344 KB n=12
27 Correct 1 ms 348 KB n=100
28 Correct 1 ms 348 KB n=500
29 Correct 1 ms 344 KB n=500
30 Correct 1 ms 348 KB n=500
31 Correct 1 ms 348 KB n=500
32 Correct 1 ms 348 KB n=500
33 Correct 1 ms 348 KB n=500
34 Correct 1 ms 464 KB n=500
35 Correct 1 ms 348 KB n=500
36 Correct 2 ms 348 KB n=500
37 Correct 2 ms 344 KB n=500
38 Correct 2 ms 348 KB n=500
39 Correct 2 ms 348 KB n=500
40 Correct 1 ms 348 KB n=500
41 Correct 2 ms 348 KB n=500
42 Correct 1 ms 348 KB n=500
43 Correct 1 ms 348 KB n=500
44 Correct 2 ms 344 KB n=500
45 Correct 1 ms 348 KB n=500
46 Correct 1 ms 344 KB n=500
47 Correct 1 ms 348 KB n=500
48 Correct 1 ms 348 KB n=500
49 Correct 1 ms 348 KB n=500
50 Correct 1 ms 348 KB n=500
51 Correct 1 ms 348 KB n=500
52 Correct 1 ms 348 KB n=500
53 Correct 1 ms 344 KB n=500
54 Correct 1 ms 348 KB n=500
55 Correct 1 ms 348 KB n=278
56 Correct 1 ms 348 KB n=500
57 Correct 1 ms 348 KB n=500
58 Correct 1 ms 348 KB n=500
59 Correct 1 ms 856 KB n=2000
60 Correct 4 ms 860 KB n=2000
61 Correct 6 ms 856 KB n=2000
62 Correct 6 ms 612 KB n=2000
63 Correct 1 ms 604 KB n=2000
64 Correct 6 ms 788 KB n=2000
65 Correct 2 ms 616 KB n=2000
66 Correct 6 ms 864 KB n=2000
67 Correct 2 ms 608 KB n=2000
68 Correct 6 ms 856 KB n=2000
69 Correct 29 ms 608 KB n=2000
70 Correct 29 ms 600 KB n=2000
71 Correct 32 ms 604 KB n=2000
72 Correct 20 ms 772 KB n=2000
73 Correct 16 ms 600 KB n=2000
74 Correct 1 ms 600 KB n=1844
75 Correct 16 ms 604 KB n=2000
76 Correct 14 ms 604 KB n=2000
77 Correct 14 ms 604 KB n=2000
78 Correct 15 ms 600 KB n=2000
79 Correct 2 ms 604 KB n=2000
80 Correct 4 ms 720 KB n=2000
81 Correct 6 ms 772 KB n=2000
82 Correct 1 ms 604 KB n=2000
83 Correct 5 ms 856 KB n=2000
84 Correct 4 ms 604 KB n=2000
85 Correct 7 ms 604 KB n=2000
86 Correct 7 ms 604 KB n=2000
87 Correct 4 ms 604 KB n=2000
88 Correct 9 ms 860 KB n=2000
89 Correct 10 ms 1116 KB n=2000
90 Correct 5 ms 860 KB n=2000
91 Correct 6 ms 600 KB n=2000

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB n=5
2 Correct 0 ms 348 KB n=100
3 Correct 0 ms 448 KB n=100
4 Correct 1 ms 348 KB n=100
5 Correct 0 ms 348 KB n=100
6 Correct 0 ms 348 KB n=100
7 Correct 0 ms 600 KB n=100
8 Correct 0 ms 348 KB n=100
9 Correct 1 ms 348 KB n=100
10 Correct 1 ms 348 KB n=100
11 Correct 0 ms 344 KB n=100
12 Correct 1 ms 344 KB n=100
13 Correct 0 ms 348 KB n=100
14 Correct 0 ms 348 KB n=100
15 Correct 0 ms 344 KB n=100
16 Correct 0 ms 348 KB n=100
17 Correct 0 ms 348 KB n=100
18 Correct 0 ms 348 KB n=100
19 Correct 1 ms 620 KB n=100
20 Correct 0 ms 348 KB n=100
21 Correct 0 ms 348 KB n=100
22 Correct 0 ms 348 KB n=100
23 Correct 0 ms 348 KB n=100
24 Correct 0 ms 348 KB n=100
25 Correct 1 ms 348 KB n=100
26 Correct 0 ms 344 KB n=12
27 Correct 1 ms 348 KB n=100
28 Correct 1 ms 348 KB n=500
29 Correct 1 ms 344 KB n=500
30 Correct 1 ms 348 KB n=500
31 Correct 1 ms 348 KB n=500
32 Correct 1 ms 348 KB n=500
33 Correct 1 ms 348 KB n=500
34 Correct 1 ms 464 KB n=500
35 Correct 1 ms 348 KB n=500
36 Correct 2 ms 348 KB n=500
37 Correct 2 ms 344 KB n=500
38 Correct 2 ms 348 KB n=500
39 Correct 2 ms 348 KB n=500
40 Correct 1 ms 348 KB n=500
41 Correct 2 ms 348 KB n=500
42 Correct 1 ms 348 KB n=500
43 Correct 1 ms 348 KB n=500
44 Correct 2 ms 344 KB n=500
45 Correct 1 ms 348 KB n=500
46 Correct 1 ms 344 KB n=500
47 Correct 1 ms 348 KB n=500
48 Correct 1 ms 348 KB n=500
49 Correct 1 ms 348 KB n=500
50 Correct 1 ms 348 KB n=500
51 Correct 1 ms 348 KB n=500
52 Correct 1 ms 348 KB n=500
53 Correct 1 ms 344 KB n=500
54 Correct 1 ms 348 KB n=500
55 Correct 1 ms 348 KB n=278
56 Correct 1 ms 348 KB n=500
57 Correct 1 ms 348 KB n=500
58 Correct 1 ms 348 KB n=500
59 Correct 1 ms 856 KB n=2000
60 Correct 4 ms 860 KB n=2000
61 Correct 6 ms 856 KB n=2000
62 Correct 6 ms 612 KB n=2000
63 Correct 1 ms 604 KB n=2000
64 Correct 6 ms 788 KB n=2000
65 Correct 2 ms 616 KB n=2000
66 Correct 6 ms 864 KB n=2000
67 Correct 2 ms 608 KB n=2000
68 Correct 6 ms 856 KB n=2000
69 Correct 29 ms 608 KB n=2000
70 Correct 29 ms 600 KB n=2000
71 Correct 32 ms 604 KB n=2000
72 Correct 20 ms 772 KB n=2000
73 Correct 16 ms 600 KB n=2000
74 Correct 1 ms 600 KB n=1844
75 Correct 16 ms 604 KB n=2000
76 Correct 14 ms 604 KB n=2000
77 Correct 14 ms 604 KB n=2000
78 Correct 15 ms 600 KB n=2000
79 Correct 2 ms 604 KB n=2000
80 Correct 4 ms 720 KB n=2000
81 Correct 6 ms 772 KB n=2000
82 Correct 1 ms 604 KB n=2000
83 Correct 5 ms 856 KB n=2000
84 Correct 4 ms 604 KB n=2000
85 Correct 7 ms 604 KB n=2000
86 Correct 7 ms 604 KB n=2000
87 Correct 4 ms 604 KB n=2000
88 Correct 9 ms 860 KB n=2000
89 Correct 10 ms 1116 KB n=2000
90 Correct 5 ms 860 KB n=2000
91 Correct 6 ms 600 KB n=2000
92 Correct 186 ms 35216 KB n=200000
93 Execution timed out 4022 ms 38180 KB Time limit exceeded
94 Halted 0 ms 0 KB -