oj.uz

Submission #683281

# Submission time Handle Problem Language Result Execution time Memory
683281 2023-01-18T05:56:47 Z Dima_Borchuk Birthday gift (IZhO18_treearray) C++17
56 / 100
 4000 ms 36788 KB 
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define sz(x) int32_t(x.size())
#define pii pair<int,int>
#include<bits/stdc++.h>
#define ld long double
#define ll long long
#define _ << ' ' <<
//#define int ll

using namespace std;
using namespace __gnu_pbds;

const int p = 1009;
const int L = 20;
const int N = (int)3e5 + 5;
const int INF = (int)2e18 + 6;
const int mod = (int)998244353;

mt19937 gen(chrono::system_clock::now().time_since_epoch().count());

template <typename T>
using ordered_set = tree < T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update >;

int a[N], up[N][20], tin[N], tout[N];

vector < int > g[N];

int timer = 0;

void dfs(int v, int anc) {
    tin[v] = ++timer;
    up[v][0] = anc;
    for (int i = 1; i < 20; i++) {
        up[v][i] = up[up[v][i - 1]][i - 1];
    }

    for (auto to : g[v]) {
        if (to == anc) continue;
        dfs(to, v);
    }

    tout[v] = ++timer;
}

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

int lca(int a, int b) {
    if (upper(a, b)) return a;
    if (upper(b, a)) return b;
    for (int i = 19; i >= 0; i--) {
        if (up[a][i] && !upper(up[a][i], b)) {
            a = up[a][i];
        }
    }
    return up[a][0];
}

int32_t main() {
    #ifdef LOCAL
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif // LOCAL

    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int n, m, q;
    cin >> n >> m >> q;
    for (int i = 1; i < n; i++) {
        int u, v;
        cin >> u >> v;
        g[u].push_back(v);
        g[v].push_back(u);
    }
    for (int i = 1; i <= m; i++) {
        cin >> a[i];
    }

    dfs(1, 0);

    while (q--) {
        int type;
        cin >> type;
        if (type == 2) {
            int l, r, v;
            cin >> l >> r >> v;
            pii ans = { -1, -1 };
            int mn = INT_MAX, ver1 = -1, ind1 = -1;
            int mx = -INT_MAX, ver2 = -1, ind2 = -1;
            for (int i = l; i <= r; i++) {
                if (a[i] == v) {
                    ans = { i, i }; break;
                }
                if (upper(v, a[i])) {
                    if (tin[a[i]] < mn) {
                        mn = tin[a[i]]; ver1 = a[i];
                        ind1 = i;
                    }
                    if (tin[a[i]] > mx) {
                        mx = tin[a[i]]; ver2 = a[i];
                        ind2 = i;
                    }
                }
                else {
                    if (ver1 != -1) {
                        if (ind1 > ind2) swap(ind1, ind2);
                        if (lca(ver1, ver2) == v) ans = { ind1, ind2 };
                    }
                    mn = INT_MAX, ver1 = -1, ind1 = -1;
                    mx = -INT_MAX, ver2 = -1, ind2 = -1;
                }
            }
            if (ver1 != -1) {
                if (ind1 > ind2) swap(ind1, ind2);
                if (lca(ver1, ver2) == v) ans = { ind1, ind2 };
            }
            cout << ans.first << ' ' << ans.second << '\n';
        }
        else {
            int pos, v;
            cin >> pos >> v;
            a[pos] = v;
        }
    }
    return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7380 KB n=5
2 Correct 4 ms 7380 KB n=100
3 Correct 4 ms 7388 KB n=100
4 Correct 4 ms 7388 KB n=100
5 Correct 4 ms 7380 KB n=100
6 Correct 4 ms 7384 KB n=100
7 Correct 4 ms 7380 KB n=100
8 Correct 4 ms 7384 KB n=100
9 Correct 4 ms 7380 KB n=100
10 Correct 4 ms 7380 KB n=100
11 Correct 4 ms 7380 KB n=100
12 Correct 4 ms 7384 KB n=100
13 Correct 4 ms 7380 KB n=100
14 Correct 4 ms 7380 KB n=100
15 Correct 4 ms 7380 KB n=100
16 Correct 4 ms 7380 KB n=100
17 Correct 4 ms 7380 KB n=100
18 Correct 4 ms 7380 KB n=100
19 Correct 4 ms 7380 KB n=100
20 Correct 4 ms 7380 KB n=100
21 Correct 5 ms 7376 KB n=100
22 Correct 4 ms 7340 KB n=100
23 Correct 5 ms 7380 KB n=100
24 Correct 4 ms 7392 KB n=100
25 Correct 4 ms 7380 KB n=100
26 Correct 5 ms 7388 KB n=12
27 Correct 4 ms 7384 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7380 KB n=5
2 Correct 4 ms 7380 KB n=100
3 Correct 4 ms 7388 KB n=100
4 Correct 4 ms 7388 KB n=100
5 Correct 4 ms 7380 KB n=100
6 Correct 4 ms 7384 KB n=100
7 Correct 4 ms 7380 KB n=100
8 Correct 4 ms 7384 KB n=100
9 Correct 4 ms 7380 KB n=100
10 Correct 4 ms 7380 KB n=100
11 Correct 4 ms 7380 KB n=100
12 Correct 4 ms 7384 KB n=100
13 Correct 4 ms 7380 KB n=100
14 Correct 4 ms 7380 KB n=100
15 Correct 4 ms 7380 KB n=100
16 Correct 4 ms 7380 KB n=100
17 Correct 4 ms 7380 KB n=100
18 Correct 4 ms 7380 KB n=100
19 Correct 4 ms 7380 KB n=100
20 Correct 4 ms 7380 KB n=100
21 Correct 5 ms 7376 KB n=100
22 Correct 4 ms 7340 KB n=100
23 Correct 5 ms 7380 KB n=100
24 Correct 4 ms 7392 KB n=100
25 Correct 4 ms 7380 KB n=100
26 Correct 5 ms 7388 KB n=12
27 Correct 4 ms 7384 KB n=100
28 Correct 6 ms 7380 KB n=500
29 Correct 4 ms 7380 KB n=500
30 Correct 5 ms 7380 KB n=500
31 Correct 4 ms 7392 KB n=500
32 Correct 4 ms 7396 KB n=500
33 Correct 5 ms 7380 KB n=500
34 Correct 4 ms 7396 KB n=500
35 Correct 4 ms 7380 KB n=500
36 Correct 5 ms 7380 KB n=500
37 Correct 5 ms 7380 KB n=500
38 Correct 5 ms 7380 KB n=500
39 Correct 5 ms 7420 KB n=500
40 Correct 5 ms 7380 KB n=500
41 Correct 5 ms 7380 KB n=500
42 Correct 5 ms 7380 KB n=500
43 Correct 5 ms 7380 KB n=500
44 Correct 5 ms 7380 KB n=500
45 Correct 5 ms 7380 KB n=500
46 Correct 6 ms 7380 KB n=500
47 Correct 5 ms 7380 KB n=500
48 Correct 5 ms 7392 KB n=500
49 Correct 4 ms 7380 KB n=500
50 Correct 4 ms 7392 KB n=500
51 Correct 5 ms 7380 KB n=500
52 Correct 4 ms 7380 KB n=500
53 Correct 4 ms 7392 KB n=500
54 Correct 4 ms 7432 KB n=500
55 Correct 4 ms 7356 KB n=278
56 Correct 5 ms 7380 KB n=500
57 Correct 5 ms 7380 KB n=500
58 Correct 5 ms 7380 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7380 KB n=5
2 Correct 4 ms 7380 KB n=100
3 Correct 4 ms 7388 KB n=100
4 Correct 4 ms 7388 KB n=100
5 Correct 4 ms 7380 KB n=100
6 Correct 4 ms 7384 KB n=100
7 Correct 4 ms 7380 KB n=100
8 Correct 4 ms 7384 KB n=100
9 Correct 4 ms 7380 KB n=100
10 Correct 4 ms 7380 KB n=100
11 Correct 4 ms 7380 KB n=100
12 Correct 4 ms 7384 KB n=100
13 Correct 4 ms 7380 KB n=100
14 Correct 4 ms 7380 KB n=100
15 Correct 4 ms 7380 KB n=100
16 Correct 4 ms 7380 KB n=100
17 Correct 4 ms 7380 KB n=100
18 Correct 4 ms 7380 KB n=100
19 Correct 4 ms 7380 KB n=100
20 Correct 4 ms 7380 KB n=100
21 Correct 5 ms 7376 KB n=100
22 Correct 4 ms 7340 KB n=100
23 Correct 5 ms 7380 KB n=100
24 Correct 4 ms 7392 KB n=100
25 Correct 4 ms 7380 KB n=100
26 Correct 5 ms 7388 KB n=12
27 Correct 4 ms 7384 KB n=100
28 Correct 6 ms 7380 KB n=500
29 Correct 4 ms 7380 KB n=500
30 Correct 5 ms 7380 KB n=500
31 Correct 4 ms 7392 KB n=500
32 Correct 4 ms 7396 KB n=500
33 Correct 5 ms 7380 KB n=500
34 Correct 4 ms 7396 KB n=500
35 Correct 4 ms 7380 KB n=500
36 Correct 5 ms 7380 KB n=500
37 Correct 5 ms 7380 KB n=500
38 Correct 5 ms 7380 KB n=500
39 Correct 5 ms 7420 KB n=500
40 Correct 5 ms 7380 KB n=500
41 Correct 5 ms 7380 KB n=500
42 Correct 5 ms 7380 KB n=500
43 Correct 5 ms 7380 KB n=500
44 Correct 5 ms 7380 KB n=500
45 Correct 5 ms 7380 KB n=500
46 Correct 6 ms 7380 KB n=500
47 Correct 5 ms 7380 KB n=500
48 Correct 5 ms 7392 KB n=500
49 Correct 4 ms 7380 KB n=500
50 Correct 4 ms 7392 KB n=500
51 Correct 5 ms 7380 KB n=500
52 Correct 4 ms 7380 KB n=500
53 Correct 4 ms 7392 KB n=500
54 Correct 4 ms 7432 KB n=500
55 Correct 4 ms 7356 KB n=278
56 Correct 5 ms 7380 KB n=500
57 Correct 5 ms 7380 KB n=500
58 Correct 5 ms 7380 KB n=500
59 Correct 6 ms 7652 KB n=2000
60 Correct 9 ms 7800 KB n=2000
61 Correct 10 ms 7764 KB n=2000
62 Correct 11 ms 7656 KB n=2000
63 Correct 7 ms 7600 KB n=2000
64 Correct 12 ms 7636 KB n=2000
65 Correct 8 ms 7704 KB n=2000
66 Correct 9 ms 7652 KB n=2000
67 Correct 9 ms 7600 KB n=2000
68 Correct 9 ms 7636 KB n=2000
69 Correct 16 ms 7668 KB n=2000
70 Correct 15 ms 7664 KB n=2000
71 Correct 15 ms 7664 KB n=2000
72 Correct 9 ms 7656 KB n=2000
73 Correct 8 ms 7636 KB n=2000
74 Correct 6 ms 7644 KB n=1844
75 Correct 8 ms 7636 KB n=2000
76 Correct 16 ms 7648 KB n=2000
77 Correct 20 ms 7652 KB n=2000
78 Correct 21 ms 7636 KB n=2000
79 Correct 6 ms 7636 KB n=2000
80 Correct 8 ms 7724 KB n=2000
81 Correct 9 ms 7636 KB n=2000
82 Correct 5 ms 7636 KB n=2000
83 Correct 8 ms 7636 KB n=2000
84 Correct 8 ms 7636 KB n=2000
85 Correct 9 ms 7636 KB n=2000
86 Correct 12 ms 7640 KB n=2000
87 Correct 8 ms 7636 KB n=2000
88 Correct 8 ms 7636 KB n=2000
89 Correct 8 ms 7732 KB n=2000
90 Correct 9 ms 7764 KB n=2000
91 Correct 17 ms 7708 KB n=2000

Subtask #4
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7380 KB n=5
2 Correct 4 ms 7380 KB n=100
3 Correct 4 ms 7388 KB n=100
4 Correct 4 ms 7388 KB n=100
5 Correct 4 ms 7380 KB n=100
6 Correct 4 ms 7384 KB n=100
7 Correct 4 ms 7380 KB n=100
8 Correct 4 ms 7384 KB n=100
9 Correct 4 ms 7380 KB n=100
10 Correct 4 ms 7380 KB n=100
11 Correct 4 ms 7380 KB n=100
12 Correct 4 ms 7384 KB n=100
13 Correct 4 ms 7380 KB n=100
14 Correct 4 ms 7380 KB n=100
15 Correct 4 ms 7380 KB n=100
16 Correct 4 ms 7380 KB n=100
17 Correct 4 ms 7380 KB n=100
18 Correct 4 ms 7380 KB n=100
19 Correct 4 ms 7380 KB n=100
20 Correct 4 ms 7380 KB n=100
21 Correct 5 ms 7376 KB n=100
22 Correct 4 ms 7340 KB n=100
23 Correct 5 ms 7380 KB n=100
24 Correct 4 ms 7392 KB n=100
25 Correct 4 ms 7380 KB n=100
26 Correct 5 ms 7388 KB n=12
27 Correct 4 ms 7384 KB n=100
28 Correct 6 ms 7380 KB n=500
29 Correct 4 ms 7380 KB n=500
30 Correct 5 ms 7380 KB n=500
31 Correct 4 ms 7392 KB n=500
32 Correct 4 ms 7396 KB n=500
33 Correct 5 ms 7380 KB n=500
34 Correct 4 ms 7396 KB n=500
35 Correct 4 ms 7380 KB n=500
36 Correct 5 ms 7380 KB n=500
37 Correct 5 ms 7380 KB n=500
38 Correct 5 ms 7380 KB n=500
39 Correct 5 ms 7420 KB n=500
40 Correct 5 ms 7380 KB n=500
41 Correct 5 ms 7380 KB n=500
42 Correct 5 ms 7380 KB n=500
43 Correct 5 ms 7380 KB n=500
44 Correct 5 ms 7380 KB n=500
45 Correct 5 ms 7380 KB n=500
46 Correct 6 ms 7380 KB n=500
47 Correct 5 ms 7380 KB n=500
48 Correct 5 ms 7392 KB n=500
49 Correct 4 ms 7380 KB n=500
50 Correct 4 ms 7392 KB n=500
51 Correct 5 ms 7380 KB n=500
52 Correct 4 ms 7380 KB n=500
53 Correct 4 ms 7392 KB n=500
54 Correct 4 ms 7432 KB n=500
55 Correct 4 ms 7356 KB n=278
56 Correct 5 ms 7380 KB n=500
57 Correct 5 ms 7380 KB n=500
58 Correct 5 ms 7380 KB n=500
59 Correct 6 ms 7652 KB n=2000
60 Correct 9 ms 7800 KB n=2000
61 Correct 10 ms 7764 KB n=2000
62 Correct 11 ms 7656 KB n=2000
63 Correct 7 ms 7600 KB n=2000
64 Correct 12 ms 7636 KB n=2000
65 Correct 8 ms 7704 KB n=2000
66 Correct 9 ms 7652 KB n=2000
67 Correct 9 ms 7600 KB n=2000
68 Correct 9 ms 7636 KB n=2000
69 Correct 16 ms 7668 KB n=2000
70 Correct 15 ms 7664 KB n=2000
71 Correct 15 ms 7664 KB n=2000
72 Correct 9 ms 7656 KB n=2000
73 Correct 8 ms 7636 KB n=2000
74 Correct 6 ms 7644 KB n=1844
75 Correct 8 ms 7636 KB n=2000
76 Correct 16 ms 7648 KB n=2000
77 Correct 20 ms 7652 KB n=2000
78 Correct 21 ms 7636 KB n=2000
79 Correct 6 ms 7636 KB n=2000
80 Correct 8 ms 7724 KB n=2000
81 Correct 9 ms 7636 KB n=2000
82 Correct 5 ms 7636 KB n=2000
83 Correct 8 ms 7636 KB n=2000
84 Correct 8 ms 7636 KB n=2000
85 Correct 9 ms 7636 KB n=2000
86 Correct 12 ms 7640 KB n=2000
87 Correct 8 ms 7636 KB n=2000
88 Correct 8 ms 7636 KB n=2000
89 Correct 8 ms 7732 KB n=2000
90 Correct 9 ms 7764 KB n=2000
91 Correct 17 ms 7708 KB n=2000
92 Execution timed out 4086 ms 36788 KB Time limit exceeded
93 Halted 0 ms 0 KB -