oj.uz

Submission #673269

# Submission time Handle Problem Language Result Execution time Memory
673269 2022-12-20T04:27:45 Z moday_morning Birthday gift (IZhO18_treearray) C++17
100 / 100
 938 ms 95300 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;

const int  N = 2e5 + 7;
 
int a[N], l[N];
set <int> s[N], s1[N];
vector <int> g[N];
 
int p[N][20], d[N];
 
void dfs (int u, int pa = 0, int depth = 0) {
    p[u][0] = pa;
    for (int i = 1; i < 20; i++) {
        p[u][i] = p[p[u][i - 1]][i - 1];
    }
    d[u] = depth;
    for (int v : g[u]) {
        if(v != pa) {
            dfs(v, u, depth + 1);
        }
    }
}
 
int lca (int u, int v) {
    if (d[u] > d[v]) {
        swap(u, v);
    }
    for (int i = 19; i >= 0; i--) {
        if ((d[v] - d[u]) >> i & 1) {
            v = p[v][i];
        }
    }
    if (u == v) {
        return u;
    }
    for (int i = 19; i >= 0; i--) {
        if (p[u][i] != p[v][i]) {
            u = p[u][i];
            v = p[v][i];
        }
    }
    return p[u][0];
}
 
void solve() {
    int n, m, q;
    cin >> n >> m >> q;
    for(int i = 0; i < n - 1; i++) {
        int u, v;
        cin >> u >> v;
        g[u].push_back(v);
        g[v].push_back(u);
    }
    dfs(1);
    for(int i = 1; i <= m; i++) {
        cin >> a[i];
        s1[a[i]].insert(i);
    }
    auto del = [&] (int pos) {
        s[l[pos]].erase(pos);
    };
    auto calc = [&] (int pos) {
        l[pos] = lca(a[pos], a[pos + 1]);
        s[l[pos]].insert(pos);
    };
    for (int i = 1; i < m; i++) {
        calc(i);
    }
    while (q--) {
        int x;
        cin >> x;
        if (x == 1) {
            int i, v;
            cin >> i >> v;
            s1[a[i]].erase(i);
            a[i] = v;
            s1[a[i]].insert(i);
            if (i - 1 >= 1) {
                del(i - 1);
                calc(i - 1);
            }
            if (i + 1 <= m) {
                del(i);
                calc(i);
            }
        }
        else {
            int l, r, v;
            cin >> l >> r >> v;
            auto it = s[v].lower_bound(l);
            if (it != s[v].end() && *it < r) {
                cout << *it << " " << *it + 1 << "\n";
            }
            else {
                auto it = s1[v].lower_bound(l);
                if (it != s1[v].end() && *it <= r) {
                    cout << *it << " " << *it << "\n";
                }
                else {
                    cout << -1 << " " << -1 << "\n";
                }
            }
        }
    }
 
}
signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int t = 1;
//    cin >> t;
    while (t--) {
        solve();
    }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB n=5
2 Correct 12 ms 23764 KB n=100
3 Correct 11 ms 23764 KB n=100
4 Correct 12 ms 23764 KB n=100
5 Correct 12 ms 23764 KB n=100
6 Correct 11 ms 23852 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 11 ms 23824 KB n=100
9 Correct 11 ms 23776 KB n=100
10 Correct 12 ms 23860 KB n=100
11 Correct 12 ms 23764 KB n=100
12 Correct 12 ms 23772 KB n=100
13 Correct 12 ms 23764 KB n=100
14 Correct 12 ms 23764 KB n=100
15 Correct 12 ms 23824 KB n=100
16 Correct 12 ms 23840 KB n=100
17 Correct 11 ms 23740 KB n=100
18 Correct 12 ms 23764 KB n=100
19 Correct 12 ms 23848 KB n=100
20 Correct 12 ms 23764 KB n=100
21 Correct 12 ms 23740 KB n=100
22 Correct 12 ms 23864 KB n=100
23 Correct 12 ms 23960 KB n=100
24 Correct 12 ms 23764 KB n=100
25 Correct 12 ms 23764 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 14 ms 23764 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB n=5
2 Correct 12 ms 23764 KB n=100
3 Correct 11 ms 23764 KB n=100
4 Correct 12 ms 23764 KB n=100
5 Correct 12 ms 23764 KB n=100
6 Correct 11 ms 23852 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 11 ms 23824 KB n=100
9 Correct 11 ms 23776 KB n=100
10 Correct 12 ms 23860 KB n=100
11 Correct 12 ms 23764 KB n=100
12 Correct 12 ms 23772 KB n=100
13 Correct 12 ms 23764 KB n=100
14 Correct 12 ms 23764 KB n=100
15 Correct 12 ms 23824 KB n=100
16 Correct 12 ms 23840 KB n=100
17 Correct 11 ms 23740 KB n=100
18 Correct 12 ms 23764 KB n=100
19 Correct 12 ms 23848 KB n=100
20 Correct 12 ms 23764 KB n=100
21 Correct 12 ms 23740 KB n=100
22 Correct 12 ms 23864 KB n=100
23 Correct 12 ms 23960 KB n=100
24 Correct 12 ms 23764 KB n=100
25 Correct 12 ms 23764 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 14 ms 23764 KB n=100
28 Correct 15 ms 23892 KB n=500
29 Correct 12 ms 23892 KB n=500
30 Correct 13 ms 23892 KB n=500
31 Correct 12 ms 23892 KB n=500
32 Correct 13 ms 23892 KB n=500
33 Correct 12 ms 23992 KB n=500
34 Correct 12 ms 23892 KB n=500
35 Correct 12 ms 23892 KB n=500
36 Correct 14 ms 23868 KB n=500
37 Correct 13 ms 23984 KB n=500
38 Correct 13 ms 23892 KB n=500
39 Correct 12 ms 23892 KB n=500
40 Correct 12 ms 23988 KB n=500
41 Correct 13 ms 23892 KB n=500
42 Correct 13 ms 23892 KB n=500
43 Correct 13 ms 23964 KB n=500
44 Correct 12 ms 23892 KB n=500
45 Correct 13 ms 23988 KB n=500
46 Correct 12 ms 23892 KB n=500
47 Correct 12 ms 24004 KB n=500
48 Correct 12 ms 23984 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 13 ms 23888 KB n=500
51 Correct 13 ms 23892 KB n=500
52 Correct 12 ms 24004 KB n=500
53 Correct 13 ms 23992 KB n=500
54 Correct 13 ms 23912 KB n=500
55 Correct 12 ms 23892 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 14 ms 23892 KB n=500
58 Correct 12 ms 23868 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB n=5
2 Correct 12 ms 23764 KB n=100
3 Correct 11 ms 23764 KB n=100
4 Correct 12 ms 23764 KB n=100
5 Correct 12 ms 23764 KB n=100
6 Correct 11 ms 23852 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 11 ms 23824 KB n=100
9 Correct 11 ms 23776 KB n=100
10 Correct 12 ms 23860 KB n=100
11 Correct 12 ms 23764 KB n=100
12 Correct 12 ms 23772 KB n=100
13 Correct 12 ms 23764 KB n=100
14 Correct 12 ms 23764 KB n=100
15 Correct 12 ms 23824 KB n=100
16 Correct 12 ms 23840 KB n=100
17 Correct 11 ms 23740 KB n=100
18 Correct 12 ms 23764 KB n=100
19 Correct 12 ms 23848 KB n=100
20 Correct 12 ms 23764 KB n=100
21 Correct 12 ms 23740 KB n=100
22 Correct 12 ms 23864 KB n=100
23 Correct 12 ms 23960 KB n=100
24 Correct 12 ms 23764 KB n=100
25 Correct 12 ms 23764 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 14 ms 23764 KB n=100
28 Correct 15 ms 23892 KB n=500
29 Correct 12 ms 23892 KB n=500
30 Correct 13 ms 23892 KB n=500
31 Correct 12 ms 23892 KB n=500
32 Correct 13 ms 23892 KB n=500
33 Correct 12 ms 23992 KB n=500
34 Correct 12 ms 23892 KB n=500
35 Correct 12 ms 23892 KB n=500
36 Correct 14 ms 23868 KB n=500
37 Correct 13 ms 23984 KB n=500
38 Correct 13 ms 23892 KB n=500
39 Correct 12 ms 23892 KB n=500
40 Correct 12 ms 23988 KB n=500
41 Correct 13 ms 23892 KB n=500
42 Correct 13 ms 23892 KB n=500
43 Correct 13 ms 23964 KB n=500
44 Correct 12 ms 23892 KB n=500
45 Correct 13 ms 23988 KB n=500
46 Correct 12 ms 23892 KB n=500
47 Correct 12 ms 24004 KB n=500
48 Correct 12 ms 23984 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 13 ms 23888 KB n=500
51 Correct 13 ms 23892 KB n=500
52 Correct 12 ms 24004 KB n=500
53 Correct 13 ms 23992 KB n=500
54 Correct 13 ms 23912 KB n=500
55 Correct 12 ms 23892 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 14 ms 23892 KB n=500
58 Correct 12 ms 23868 KB n=500
59 Correct 15 ms 24372 KB n=2000
60 Correct 15 ms 24536 KB n=2000
61 Correct 15 ms 24404 KB n=2000
62 Correct 15 ms 24388 KB n=2000
63 Correct 15 ms 24384 KB n=2000
64 Correct 15 ms 24488 KB n=2000
65 Correct 18 ms 24408 KB n=2000
66 Correct 15 ms 24416 KB n=2000
67 Correct 17 ms 24404 KB n=2000
68 Correct 15 ms 24432 KB n=2000
69 Correct 15 ms 24404 KB n=2000
70 Correct 14 ms 24476 KB n=2000
71 Correct 14 ms 24404 KB n=2000
72 Correct 14 ms 24404 KB n=2000
73 Correct 14 ms 24392 KB n=2000
74 Correct 14 ms 24352 KB n=1844
75 Correct 14 ms 24380 KB n=2000
76 Correct 15 ms 24404 KB n=2000
77 Correct 15 ms 24404 KB n=2000
78 Correct 15 ms 24404 KB n=2000
79 Correct 15 ms 24404 KB n=2000
80 Correct 15 ms 24404 KB n=2000
81 Correct 15 ms 24384 KB n=2000
82 Correct 15 ms 24348 KB n=2000
83 Correct 14 ms 24404 KB n=2000
84 Correct 15 ms 24364 KB n=2000
85 Correct 15 ms 24492 KB n=2000
86 Correct 15 ms 24404 KB n=2000
87 Correct 15 ms 24424 KB n=2000
88 Correct 14 ms 24532 KB n=2000
89 Correct 14 ms 24444 KB n=2000
90 Correct 15 ms 24540 KB n=2000
91 Correct 15 ms 24368 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 23764 KB n=5
2 Correct 12 ms 23764 KB n=100
3 Correct 11 ms 23764 KB n=100
4 Correct 12 ms 23764 KB n=100
5 Correct 12 ms 23764 KB n=100
6 Correct 11 ms 23852 KB n=100
7 Correct 11 ms 23764 KB n=100
8 Correct 11 ms 23824 KB n=100
9 Correct 11 ms 23776 KB n=100
10 Correct 12 ms 23860 KB n=100
11 Correct 12 ms 23764 KB n=100
12 Correct 12 ms 23772 KB n=100
13 Correct 12 ms 23764 KB n=100
14 Correct 12 ms 23764 KB n=100
15 Correct 12 ms 23824 KB n=100
16 Correct 12 ms 23840 KB n=100
17 Correct 11 ms 23740 KB n=100
18 Correct 12 ms 23764 KB n=100
19 Correct 12 ms 23848 KB n=100
20 Correct 12 ms 23764 KB n=100
21 Correct 12 ms 23740 KB n=100
22 Correct 12 ms 23864 KB n=100
23 Correct 12 ms 23960 KB n=100
24 Correct 12 ms 23764 KB n=100
25 Correct 12 ms 23764 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 14 ms 23764 KB n=100
28 Correct 15 ms 23892 KB n=500
29 Correct 12 ms 23892 KB n=500
30 Correct 13 ms 23892 KB n=500
31 Correct 12 ms 23892 KB n=500
32 Correct 13 ms 23892 KB n=500
33 Correct 12 ms 23992 KB n=500
34 Correct 12 ms 23892 KB n=500
35 Correct 12 ms 23892 KB n=500
36 Correct 14 ms 23868 KB n=500
37 Correct 13 ms 23984 KB n=500
38 Correct 13 ms 23892 KB n=500
39 Correct 12 ms 23892 KB n=500
40 Correct 12 ms 23988 KB n=500
41 Correct 13 ms 23892 KB n=500
42 Correct 13 ms 23892 KB n=500
43 Correct 13 ms 23964 KB n=500
44 Correct 12 ms 23892 KB n=500
45 Correct 13 ms 23988 KB n=500
46 Correct 12 ms 23892 KB n=500
47 Correct 12 ms 24004 KB n=500
48 Correct 12 ms 23984 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 13 ms 23888 KB n=500
51 Correct 13 ms 23892 KB n=500
52 Correct 12 ms 24004 KB n=500
53 Correct 13 ms 23992 KB n=500
54 Correct 13 ms 23912 KB n=500
55 Correct 12 ms 23892 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 14 ms 23892 KB n=500
58 Correct 12 ms 23868 KB n=500
59 Correct 15 ms 24372 KB n=2000
60 Correct 15 ms 24536 KB n=2000
61 Correct 15 ms 24404 KB n=2000
62 Correct 15 ms 24388 KB n=2000
63 Correct 15 ms 24384 KB n=2000
64 Correct 15 ms 24488 KB n=2000
65 Correct 18 ms 24408 KB n=2000
66 Correct 15 ms 24416 KB n=2000
67 Correct 17 ms 24404 KB n=2000
68 Correct 15 ms 24432 KB n=2000
69 Correct 15 ms 24404 KB n=2000
70 Correct 14 ms 24476 KB n=2000
71 Correct 14 ms 24404 KB n=2000
72 Correct 14 ms 24404 KB n=2000
73 Correct 14 ms 24392 KB n=2000
74 Correct 14 ms 24352 KB n=1844
75 Correct 14 ms 24380 KB n=2000
76 Correct 15 ms 24404 KB n=2000
77 Correct 15 ms 24404 KB n=2000
78 Correct 15 ms 24404 KB n=2000
79 Correct 15 ms 24404 KB n=2000
80 Correct 15 ms 24404 KB n=2000
81 Correct 15 ms 24384 KB n=2000
82 Correct 15 ms 24348 KB n=2000
83 Correct 14 ms 24404 KB n=2000
84 Correct 15 ms 24364 KB n=2000
85 Correct 15 ms 24492 KB n=2000
86 Correct 15 ms 24404 KB n=2000
87 Correct 15 ms 24424 KB n=2000
88 Correct 14 ms 24532 KB n=2000
89 Correct 14 ms 24444 KB n=2000
90 Correct 15 ms 24540 KB n=2000
91 Correct 15 ms 24368 KB n=2000
92 Correct 631 ms 87652 KB n=200000
93 Correct 873 ms 91308 KB n=200000
94 Correct 809 ms 94208 KB n=200000
95 Correct 608 ms 87380 KB n=200000
96 Correct 629 ms 87356 KB n=200000
97 Correct 875 ms 90536 KB n=200000
98 Correct 622 ms 87552 KB n=200000
99 Correct 786 ms 87104 KB n=200000
100 Correct 664 ms 87600 KB n=200000
101 Correct 789 ms 95124 KB n=200000
102 Correct 419 ms 88564 KB n=200000
103 Correct 390 ms 88788 KB n=200000
104 Correct 402 ms 88584 KB n=200000
105 Correct 414 ms 88456 KB n=200000
106 Correct 398 ms 88424 KB n=200000
107 Correct 403 ms 88368 KB n=200000
108 Correct 697 ms 87348 KB n=200000
109 Correct 694 ms 87260 KB n=200000
110 Correct 704 ms 87368 KB n=200000
111 Correct 627 ms 87472 KB n=200000
112 Correct 788 ms 94528 KB n=200000
113 Correct 884 ms 90588 KB n=200000
114 Correct 650 ms 87352 KB n=200000
115 Correct 938 ms 88488 KB n=200000
116 Correct 602 ms 87196 KB n=200000
117 Correct 875 ms 94520 KB n=200000
118 Correct 915 ms 89384 KB n=200000
119 Correct 604 ms 87296 KB n=200000
120 Correct 750 ms 94784 KB n=200000
121 Correct 734 ms 94928 KB n=200000
122 Correct 729 ms 95300 KB n=200000
123 Correct 408 ms 88072 KB n=200000
124 Correct 185 ms 39992 KB n=25264