oj.uz

Submission #1114260

# Submission time Handle Problem Language Result Execution time Memory
1114260 2024-11-18T13:13:41 Z MisterReaper Birthday gift (IZhO18_treearray) C++17
100 / 100
 863 ms 84404 KB 
#include <bits/stdc++.h>

using i64 = long long;

#ifdef DEBUG 
    #include "/home/ahmetalp/Desktop/Workplace/debug.h"
#else
    #define debug(...) void(23)
#endif

constexpr int max_N = int(2E5) + 5;
constexpr int LG = 20;

int N, M, Q;
std::vector<int> adj[max_N];
int par[LG][max_N], tin[max_N], tout[max_N], dep[max_N], timer;

void dfs(int v) {
    tin[v] = timer++;
    for (auto u : adj[v]) {
        adj[u].erase(std::find(adj[u].begin(), adj[u].end(), v));
        par[0][u] = v;
        dep[u] = dep[v] + 1;
        dfs(u);
    }
    tout[v] = timer;
}

bool is_in_subtree_of(int u, int v) {
    return tin[v] <= tin[u] && tout[u] <= tout[v];
}
int lca(int a, int b) {
    if (is_in_subtree_of(a, b)) {
        return b;
    } else if (is_in_subtree_of(b, a)) {
        return a;
    }
    for (int lg = LG - 1; lg >= 0; --lg) {
        if (!is_in_subtree_of(b, par[lg][a])) {
            a = par[lg][a];
        }
    }
    return par[0][a];
}

int A[max_N];
std::set<int> s[max_N], t[max_N];

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);

    std::cin >> N >> M >> Q;
    for (int i = 1; i < N; ++i) {
        int X, Y;
        std::cin >> X >> Y;
        adj[X].emplace_back(Y);
        adj[Y].emplace_back(X);
    }
    for (int i = 0; i < M; ++i) {
        std::cin >> A[i];
    }

    par[0][1] = 1;
    dfs(1);

    for (int lg = 0; lg + 1 < LG; ++lg) {
        for (int i = 1; i <= N; ++i) {
            par[lg + 1][i] = par[lg][par[lg][i]];
        }
    }

    for (int i = 0; i < M; ++i) {
        s[A[i]].emplace(i);
    }
    for (int i = 0; i + 1 < M; ++i) {
        t[lca(A[i], A[i + 1])].emplace(i);
    }

    while (Q--) {
        int TP;
        std::cin >> TP;
        if (TP == 1) {
            int P, X;
            std::cin >> P >> X;
            --P;
            s[A[P]].erase(P);
            if (0 <= P - 1) {
                t[lca(A[P - 1], A[P])].erase(P - 1);
            }
            if (P + 1 < M) {
                t[lca(A[P], A[P + 1])].erase(P);
            }
            A[P] = X;
            s[A[P]].emplace(P);
            if (0 <= P - 1) {
                t[lca(A[P - 1], A[P])].emplace(P - 1);
            }
            if (P + 1 < M) {
                t[lca(A[P], A[P + 1])].emplace(P);
            }
        } else {
            int L, R, X; 
            std::cin >> L >> R >> X;
            --L, --R;
            auto it = s[X].lower_bound(L);
            if (it != s[X].end() && *it <= R) {
                std::cout << *it + 1 << ' ' << *it + 1 << '\n';
            } else {
                it = t[X].lower_bound(L);
                if (it != t[X].end() && *it + 1 <= R) {
                    std::cout << *it + 1 << ' ' << *it + 2 << '\n';
                } else {
                    std::cout << "-1 -1\n";
                }
            }
        }
        debug();
    }

    return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 24400 KB n=5
2 Correct 14 ms 24516 KB n=100
3 Correct 11 ms 24400 KB n=100
4 Correct 12 ms 24400 KB n=100
5 Correct 12 ms 24400 KB n=100
6 Correct 11 ms 24400 KB n=100
7 Correct 11 ms 24400 KB n=100
8 Correct 9 ms 24400 KB n=100
9 Correct 9 ms 24400 KB n=100
10 Correct 10 ms 24568 KB n=100
11 Correct 11 ms 24400 KB n=100
12 Correct 12 ms 24400 KB n=100
13 Correct 12 ms 24400 KB n=100
14 Correct 11 ms 24400 KB n=100
15 Correct 10 ms 24400 KB n=100
16 Correct 11 ms 24400 KB n=100
17 Correct 11 ms 24400 KB n=100
18 Correct 12 ms 24400 KB n=100
19 Correct 12 ms 24568 KB n=100
20 Correct 12 ms 24400 KB n=100
21 Correct 11 ms 24400 KB n=100
22 Correct 10 ms 24400 KB n=100
23 Correct 12 ms 24400 KB n=100
24 Correct 13 ms 24572 KB n=100
25 Correct 11 ms 24400 KB n=100
26 Correct 13 ms 24400 KB n=12
27 Correct 12 ms 24568 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 24400 KB n=5
2 Correct 14 ms 24516 KB n=100
3 Correct 11 ms 24400 KB n=100
4 Correct 12 ms 24400 KB n=100
5 Correct 12 ms 24400 KB n=100
6 Correct 11 ms 24400 KB n=100
7 Correct 11 ms 24400 KB n=100
8 Correct 9 ms 24400 KB n=100
9 Correct 9 ms 24400 KB n=100
10 Correct 10 ms 24568 KB n=100
11 Correct 11 ms 24400 KB n=100
12 Correct 12 ms 24400 KB n=100
13 Correct 12 ms 24400 KB n=100
14 Correct 11 ms 24400 KB n=100
15 Correct 10 ms 24400 KB n=100
16 Correct 11 ms 24400 KB n=100
17 Correct 11 ms 24400 KB n=100
18 Correct 12 ms 24400 KB n=100
19 Correct 12 ms 24568 KB n=100
20 Correct 12 ms 24400 KB n=100
21 Correct 11 ms 24400 KB n=100
22 Correct 10 ms 24400 KB n=100
23 Correct 12 ms 24400 KB n=100
24 Correct 13 ms 24572 KB n=100
25 Correct 11 ms 24400 KB n=100
26 Correct 13 ms 24400 KB n=12
27 Correct 12 ms 24568 KB n=100
28 Correct 15 ms 24496 KB n=500
29 Correct 12 ms 24656 KB n=500
30 Correct 12 ms 24656 KB n=500
31 Correct 12 ms 24656 KB n=500
32 Correct 14 ms 24400 KB n=500
33 Correct 11 ms 24656 KB n=500
34 Correct 11 ms 24656 KB n=500
35 Correct 12 ms 24656 KB n=500
36 Correct 10 ms 24824 KB n=500
37 Correct 12 ms 24400 KB n=500
38 Correct 13 ms 24400 KB n=500
39 Correct 10 ms 24400 KB n=500
40 Correct 11 ms 24568 KB n=500
41 Correct 12 ms 24656 KB n=500
42 Correct 14 ms 24400 KB n=500
43 Correct 13 ms 24400 KB n=500
44 Correct 18 ms 24604 KB n=500
45 Correct 12 ms 24400 KB n=500
46 Correct 13 ms 24656 KB n=500
47 Correct 13 ms 24656 KB n=500
48 Correct 11 ms 24656 KB n=500
49 Correct 13 ms 24656 KB n=500
50 Correct 12 ms 24400 KB n=500
51 Correct 12 ms 24656 KB n=500
52 Correct 10 ms 24656 KB n=500
53 Correct 13 ms 24656 KB n=500
54 Correct 13 ms 24656 KB n=500
55 Correct 13 ms 24400 KB n=278
56 Correct 13 ms 24668 KB n=500
57 Correct 12 ms 24656 KB n=500
58 Correct 12 ms 24824 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 24400 KB n=5
2 Correct 14 ms 24516 KB n=100
3 Correct 11 ms 24400 KB n=100
4 Correct 12 ms 24400 KB n=100
5 Correct 12 ms 24400 KB n=100
6 Correct 11 ms 24400 KB n=100
7 Correct 11 ms 24400 KB n=100
8 Correct 9 ms 24400 KB n=100
9 Correct 9 ms 24400 KB n=100
10 Correct 10 ms 24568 KB n=100
11 Correct 11 ms 24400 KB n=100
12 Correct 12 ms 24400 KB n=100
13 Correct 12 ms 24400 KB n=100
14 Correct 11 ms 24400 KB n=100
15 Correct 10 ms 24400 KB n=100
16 Correct 11 ms 24400 KB n=100
17 Correct 11 ms 24400 KB n=100
18 Correct 12 ms 24400 KB n=100
19 Correct 12 ms 24568 KB n=100
20 Correct 12 ms 24400 KB n=100
21 Correct 11 ms 24400 KB n=100
22 Correct 10 ms 24400 KB n=100
23 Correct 12 ms 24400 KB n=100
24 Correct 13 ms 24572 KB n=100
25 Correct 11 ms 24400 KB n=100
26 Correct 13 ms 24400 KB n=12
27 Correct 12 ms 24568 KB n=100
28 Correct 15 ms 24496 KB n=500
29 Correct 12 ms 24656 KB n=500
30 Correct 12 ms 24656 KB n=500
31 Correct 12 ms 24656 KB n=500
32 Correct 14 ms 24400 KB n=500
33 Correct 11 ms 24656 KB n=500
34 Correct 11 ms 24656 KB n=500
35 Correct 12 ms 24656 KB n=500
36 Correct 10 ms 24824 KB n=500
37 Correct 12 ms 24400 KB n=500
38 Correct 13 ms 24400 KB n=500
39 Correct 10 ms 24400 KB n=500
40 Correct 11 ms 24568 KB n=500
41 Correct 12 ms 24656 KB n=500
42 Correct 14 ms 24400 KB n=500
43 Correct 13 ms 24400 KB n=500
44 Correct 18 ms 24604 KB n=500
45 Correct 12 ms 24400 KB n=500
46 Correct 13 ms 24656 KB n=500
47 Correct 13 ms 24656 KB n=500
48 Correct 11 ms 24656 KB n=500
49 Correct 13 ms 24656 KB n=500
50 Correct 12 ms 24400 KB n=500
51 Correct 12 ms 24656 KB n=500
52 Correct 10 ms 24656 KB n=500
53 Correct 13 ms 24656 KB n=500
54 Correct 13 ms 24656 KB n=500
55 Correct 13 ms 24400 KB n=278
56 Correct 13 ms 24668 KB n=500
57 Correct 12 ms 24656 KB n=500
58 Correct 12 ms 24824 KB n=500
59 Correct 14 ms 24912 KB n=2000
60 Correct 17 ms 24912 KB n=2000
61 Correct 14 ms 24912 KB n=2000
62 Correct 15 ms 24912 KB n=2000
63 Correct 15 ms 24912 KB n=2000
64 Correct 12 ms 24912 KB n=2000
65 Correct 15 ms 25080 KB n=2000
66 Correct 14 ms 24912 KB n=2000
67 Correct 12 ms 24912 KB n=2000
68 Correct 16 ms 24912 KB n=2000
69 Correct 15 ms 24912 KB n=2000
70 Correct 12 ms 24912 KB n=2000
71 Correct 13 ms 24912 KB n=2000
72 Correct 12 ms 24912 KB n=2000
73 Correct 12 ms 24912 KB n=2000
74 Correct 15 ms 24912 KB n=1844
75 Correct 16 ms 24912 KB n=2000
76 Correct 16 ms 24912 KB n=2000
77 Correct 15 ms 24912 KB n=2000
78 Correct 16 ms 24912 KB n=2000
79 Correct 15 ms 25080 KB n=2000
80 Correct 16 ms 24912 KB n=2000
81 Correct 13 ms 24912 KB n=2000
82 Correct 13 ms 24912 KB n=2000
83 Correct 12 ms 24912 KB n=2000
84 Correct 15 ms 24912 KB n=2000
85 Correct 15 ms 24912 KB n=2000
86 Correct 16 ms 24912 KB n=2000
87 Correct 14 ms 24912 KB n=2000
88 Correct 14 ms 24912 KB n=2000
89 Correct 12 ms 24912 KB n=2000
90 Correct 12 ms 24912 KB n=2000
91 Correct 14 ms 25080 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 24400 KB n=5
2 Correct 14 ms 24516 KB n=100
3 Correct 11 ms 24400 KB n=100
4 Correct 12 ms 24400 KB n=100
5 Correct 12 ms 24400 KB n=100
6 Correct 11 ms 24400 KB n=100
7 Correct 11 ms 24400 KB n=100
8 Correct 9 ms 24400 KB n=100
9 Correct 9 ms 24400 KB n=100
10 Correct 10 ms 24568 KB n=100
11 Correct 11 ms 24400 KB n=100
12 Correct 12 ms 24400 KB n=100
13 Correct 12 ms 24400 KB n=100
14 Correct 11 ms 24400 KB n=100
15 Correct 10 ms 24400 KB n=100
16 Correct 11 ms 24400 KB n=100
17 Correct 11 ms 24400 KB n=100
18 Correct 12 ms 24400 KB n=100
19 Correct 12 ms 24568 KB n=100
20 Correct 12 ms 24400 KB n=100
21 Correct 11 ms 24400 KB n=100
22 Correct 10 ms 24400 KB n=100
23 Correct 12 ms 24400 KB n=100
24 Correct 13 ms 24572 KB n=100
25 Correct 11 ms 24400 KB n=100
26 Correct 13 ms 24400 KB n=12
27 Correct 12 ms 24568 KB n=100
28 Correct 15 ms 24496 KB n=500
29 Correct 12 ms 24656 KB n=500
30 Correct 12 ms 24656 KB n=500
31 Correct 12 ms 24656 KB n=500
32 Correct 14 ms 24400 KB n=500
33 Correct 11 ms 24656 KB n=500
34 Correct 11 ms 24656 KB n=500
35 Correct 12 ms 24656 KB n=500
36 Correct 10 ms 24824 KB n=500
37 Correct 12 ms 24400 KB n=500
38 Correct 13 ms 24400 KB n=500
39 Correct 10 ms 24400 KB n=500
40 Correct 11 ms 24568 KB n=500
41 Correct 12 ms 24656 KB n=500
42 Correct 14 ms 24400 KB n=500
43 Correct 13 ms 24400 KB n=500
44 Correct 18 ms 24604 KB n=500
45 Correct 12 ms 24400 KB n=500
46 Correct 13 ms 24656 KB n=500
47 Correct 13 ms 24656 KB n=500
48 Correct 11 ms 24656 KB n=500
49 Correct 13 ms 24656 KB n=500
50 Correct 12 ms 24400 KB n=500
51 Correct 12 ms 24656 KB n=500
52 Correct 10 ms 24656 KB n=500
53 Correct 13 ms 24656 KB n=500
54 Correct 13 ms 24656 KB n=500
55 Correct 13 ms 24400 KB n=278
56 Correct 13 ms 24668 KB n=500
57 Correct 12 ms 24656 KB n=500
58 Correct 12 ms 24824 KB n=500
59 Correct 14 ms 24912 KB n=2000
60 Correct 17 ms 24912 KB n=2000
61 Correct 14 ms 24912 KB n=2000
62 Correct 15 ms 24912 KB n=2000
63 Correct 15 ms 24912 KB n=2000
64 Correct 12 ms 24912 KB n=2000
65 Correct 15 ms 25080 KB n=2000
66 Correct 14 ms 24912 KB n=2000
67 Correct 12 ms 24912 KB n=2000
68 Correct 16 ms 24912 KB n=2000
69 Correct 15 ms 24912 KB n=2000
70 Correct 12 ms 24912 KB n=2000
71 Correct 13 ms 24912 KB n=2000
72 Correct 12 ms 24912 KB n=2000
73 Correct 12 ms 24912 KB n=2000
74 Correct 15 ms 24912 KB n=1844
75 Correct 16 ms 24912 KB n=2000
76 Correct 16 ms 24912 KB n=2000
77 Correct 15 ms 24912 KB n=2000
78 Correct 16 ms 24912 KB n=2000
79 Correct 15 ms 25080 KB n=2000
80 Correct 16 ms 24912 KB n=2000
81 Correct 13 ms 24912 KB n=2000
82 Correct 13 ms 24912 KB n=2000
83 Correct 12 ms 24912 KB n=2000
84 Correct 15 ms 24912 KB n=2000
85 Correct 15 ms 24912 KB n=2000
86 Correct 16 ms 24912 KB n=2000
87 Correct 14 ms 24912 KB n=2000
88 Correct 14 ms 24912 KB n=2000
89 Correct 12 ms 24912 KB n=2000
90 Correct 12 ms 24912 KB n=2000
91 Correct 14 ms 25080 KB n=2000
92 Correct 561 ms 69708 KB n=200000
93 Correct 567 ms 76684 KB n=200000
94 Correct 386 ms 81992 KB n=200000
95 Correct 550 ms 69564 KB n=200000
96 Correct 548 ms 69564 KB n=200000
97 Correct 717 ms 74996 KB n=200000
98 Correct 619 ms 69520 KB n=200000
99 Correct 795 ms 68960 KB n=200000
100 Correct 729 ms 69584 KB n=200000
101 Correct 411 ms 84132 KB n=200000
102 Correct 331 ms 70456 KB n=200000
103 Correct 305 ms 70512 KB n=200000
104 Correct 307 ms 70472 KB n=200000
105 Correct 325 ms 70216 KB n=200000
106 Correct 318 ms 70216 KB n=200000
107 Correct 335 ms 70216 KB n=200000
108 Correct 597 ms 69200 KB n=200000
109 Correct 634 ms 69124 KB n=200000
110 Correct 677 ms 69280 KB n=200000
111 Correct 647 ms 69476 KB n=200000
112 Correct 413 ms 82528 KB n=200000
113 Correct 671 ms 74896 KB n=200000
114 Correct 671 ms 69412 KB n=200000
115 Correct 863 ms 71276 KB n=200000
116 Correct 525 ms 69292 KB n=200000
117 Correct 346 ms 83060 KB n=200000
118 Correct 720 ms 73032 KB n=200000
119 Correct 587 ms 69248 KB n=200000
120 Correct 267 ms 84000 KB n=200000
121 Correct 277 ms 83784 KB n=200000
122 Correct 297 ms 84404 KB n=200000
123 Correct 321 ms 69960 KB n=200000
124 Correct 139 ms 38216 KB n=25264