oj.uz

Submission #320337

# Submission time Handle Problem Language Result Execution time Memory
320337 2020-11-08T10:20:22 Z spike1236 Birthday gift (IZhO18_treearray) C++14
100 / 100
 1182 ms 76644 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define f first
#define s second
#define sz size()
#define ll long long
#define ld long double
#define all(_v) _v.begin(), _v.end()
#define pii pair <int, int>
#define pll pair <ll, ll>
#define veci vector <int>
#define vecll vector <ll>


const int dx[4] = {1, -1, 0, 0};
const int dy[4] = {0, 0, -1, 1};
const double PI = 3.1415926535897932384626433832795;
const double eps = 1e-9;
const int MOD1 = 1e9 + 7;
const int MOD2 = 998244353;


const int MAXN = 2e5 + 10;
int n, m, q;
int tin[MAXN], tout[MAXN];
int up[MAXN][19];
vector <int> g[MAXN];
set <int> st[MAXN], poses[MAXN];
int a[MAXN];
int tmr;

void dfs(int v = 1, int p = 0) {
    tin[v] = ++tmr;
    up[v][0] = p;
    for(int i = 1; i < 18; ++i)
        if(up[v][i - 1])
            up[v][i] = up[up[v][i - 1]][i - 1];
    for(auto to : g[v])
        if(to != p)
            dfs(to, v);
    tout[v] = ++tmr;
}

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

int lca(int a, int b) {
    if(upper(a, b)) return a;
    if(upper(b, a)) return b;
    for(int i = 17; i >= 0; --i)
        if(up[a][i] && !upper(up[a][i], b))
            a = up[a][i];
    assert(up[a][0] > 0);
    return up[a][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();
    for(int i = 1; i <= m; ++i)
        cin >> a[i], poses[a[i]].insert(i);
    for(int i = 2; i <= m; ++i)
        st[lca(a[i], a[i - 1])].insert(i);
    for(int i = 1; i <= q; ++i) {
        int type;
        cin >> type;
        if(type == 1) {
            int pos, v;
            cin >> pos >> v;
            poses[a[pos]].erase(pos);
            if(pos > 1) st[lca(a[pos], a[pos - 1])].erase(pos);
            if(pos < m) st[lca(a[pos], a[pos + 1])].erase(pos + 1);
            a[pos] = v;
            poses[v].insert(pos);
            if(pos > 1) st[lca(v, a[pos - 1])].insert(pos);
            if(pos < m) st[lca(v, a[pos + 1])].insert(pos + 1);
        } else {
            int l, r, v;
            cin >> l >> r >> v;
            if(!poses[v].empty()) {
                auto it = poses[v].lower_bound(l);
                if(it != poses[v].end()) {
                    int k = *it;
                    if(k <= r) {
                        cout << k << ' ' << k << '\n';
                        continue;
                    }
                }
            }
            if(st[v].empty()) {
                cout << "-1 -1" << '\n';
                continue;
            }
            auto it = st[v].upper_bound(l);
            int ans1 = -1, ans2 = -1;
            if(it != st[v].end()) {
                int cur = *it;
                if(cur <= r) {
                    ans1 = cur - 1;
                    ans2 = cur;
                }
            }
            cout << ans1 << ' ' << ans2 << '\n';
        }
    }
}


int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int T = 1;
    ///cin >> T;
    while(T--) solve(), cout << '\n';
    return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23788 KB n=5
2 Correct 15 ms 24044 KB n=100
3 Correct 18 ms 23916 KB n=100
4 Correct 15 ms 23916 KB n=100
5 Correct 15 ms 23916 KB n=100
6 Correct 15 ms 23916 KB n=100
7 Correct 15 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 15 ms 23916 KB n=100
11 Correct 15 ms 23916 KB n=100
12 Correct 15 ms 23916 KB n=100
13 Correct 15 ms 23916 KB n=100
14 Correct 15 ms 23916 KB n=100
15 Correct 15 ms 23916 KB n=100
16 Correct 16 ms 23916 KB n=100
17 Correct 18 ms 23916 KB n=100
18 Correct 15 ms 23916 KB n=100
19 Correct 15 ms 23916 KB n=100
20 Correct 15 ms 23916 KB n=100
21 Correct 15 ms 23916 KB n=100
22 Correct 15 ms 23916 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 15 ms 23916 KB n=100
25 Correct 15 ms 23916 KB n=100
26 Correct 15 ms 23916 KB n=12
27 Correct 15 ms 23916 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23788 KB n=5
2 Correct 15 ms 24044 KB n=100
3 Correct 18 ms 23916 KB n=100
4 Correct 15 ms 23916 KB n=100
5 Correct 15 ms 23916 KB n=100
6 Correct 15 ms 23916 KB n=100
7 Correct 15 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 15 ms 23916 KB n=100
11 Correct 15 ms 23916 KB n=100
12 Correct 15 ms 23916 KB n=100
13 Correct 15 ms 23916 KB n=100
14 Correct 15 ms 23916 KB n=100
15 Correct 15 ms 23916 KB n=100
16 Correct 16 ms 23916 KB n=100
17 Correct 18 ms 23916 KB n=100
18 Correct 15 ms 23916 KB n=100
19 Correct 15 ms 23916 KB n=100
20 Correct 15 ms 23916 KB n=100
21 Correct 15 ms 23916 KB n=100
22 Correct 15 ms 23916 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 15 ms 23916 KB n=100
25 Correct 15 ms 23916 KB n=100
26 Correct 15 ms 23916 KB n=12
27 Correct 15 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 15 ms 23916 KB n=500
30 Correct 16 ms 24044 KB n=500
31 Correct 18 ms 24064 KB n=500
32 Correct 16 ms 23916 KB n=500
33 Correct 18 ms 23916 KB n=500
34 Correct 15 ms 23916 KB n=500
35 Correct 16 ms 23916 KB n=500
36 Correct 15 ms 23916 KB n=500
37 Correct 16 ms 23908 KB n=500
38 Correct 16 ms 23916 KB n=500
39 Correct 18 ms 23916 KB n=500
40 Correct 15 ms 23916 KB n=500
41 Correct 15 ms 23916 KB n=500
42 Correct 18 ms 23916 KB n=500
43 Correct 16 ms 24044 KB n=500
44 Correct 19 ms 23916 KB n=500
45 Correct 15 ms 23916 KB n=500
46 Correct 15 ms 23916 KB n=500
47 Correct 16 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 15 ms 23916 KB n=500
50 Correct 15 ms 23916 KB n=500
51 Correct 16 ms 23916 KB n=500
52 Correct 15 ms 23916 KB n=500
53 Correct 15 ms 23916 KB n=500
54 Correct 16 ms 23916 KB n=500
55 Correct 15 ms 23916 KB n=278
56 Correct 16 ms 23916 KB n=500
57 Correct 16 ms 23916 KB n=500
58 Correct 18 ms 23916 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23788 KB n=5
2 Correct 15 ms 24044 KB n=100
3 Correct 18 ms 23916 KB n=100
4 Correct 15 ms 23916 KB n=100
5 Correct 15 ms 23916 KB n=100
6 Correct 15 ms 23916 KB n=100
7 Correct 15 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 15 ms 23916 KB n=100
11 Correct 15 ms 23916 KB n=100
12 Correct 15 ms 23916 KB n=100
13 Correct 15 ms 23916 KB n=100
14 Correct 15 ms 23916 KB n=100
15 Correct 15 ms 23916 KB n=100
16 Correct 16 ms 23916 KB n=100
17 Correct 18 ms 23916 KB n=100
18 Correct 15 ms 23916 KB n=100
19 Correct 15 ms 23916 KB n=100
20 Correct 15 ms 23916 KB n=100
21 Correct 15 ms 23916 KB n=100
22 Correct 15 ms 23916 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 15 ms 23916 KB n=100
25 Correct 15 ms 23916 KB n=100
26 Correct 15 ms 23916 KB n=12
27 Correct 15 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 15 ms 23916 KB n=500
30 Correct 16 ms 24044 KB n=500
31 Correct 18 ms 24064 KB n=500
32 Correct 16 ms 23916 KB n=500
33 Correct 18 ms 23916 KB n=500
34 Correct 15 ms 23916 KB n=500
35 Correct 16 ms 23916 KB n=500
36 Correct 15 ms 23916 KB n=500
37 Correct 16 ms 23908 KB n=500
38 Correct 16 ms 23916 KB n=500
39 Correct 18 ms 23916 KB n=500
40 Correct 15 ms 23916 KB n=500
41 Correct 15 ms 23916 KB n=500
42 Correct 18 ms 23916 KB n=500
43 Correct 16 ms 24044 KB n=500
44 Correct 19 ms 23916 KB n=500
45 Correct 15 ms 23916 KB n=500
46 Correct 15 ms 23916 KB n=500
47 Correct 16 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 15 ms 23916 KB n=500
50 Correct 15 ms 23916 KB n=500
51 Correct 16 ms 23916 KB n=500
52 Correct 15 ms 23916 KB n=500
53 Correct 15 ms 23916 KB n=500
54 Correct 16 ms 23916 KB n=500
55 Correct 15 ms 23916 KB n=278
56 Correct 16 ms 23916 KB n=500
57 Correct 16 ms 23916 KB n=500
58 Correct 18 ms 23916 KB n=500
59 Correct 18 ms 24300 KB n=2000
60 Correct 18 ms 24428 KB n=2000
61 Correct 18 ms 24300 KB n=2000
62 Correct 19 ms 24300 KB n=2000
63 Correct 18 ms 24300 KB n=2000
64 Correct 18 ms 24300 KB n=2000
65 Correct 18 ms 24300 KB n=2000
66 Correct 18 ms 24300 KB n=2000
67 Correct 19 ms 24300 KB n=2000
68 Correct 19 ms 24300 KB n=2000
69 Correct 18 ms 24300 KB n=2000
70 Correct 17 ms 24300 KB n=2000
71 Correct 21 ms 24292 KB n=2000
72 Correct 17 ms 24300 KB n=2000
73 Correct 18 ms 24300 KB n=2000
74 Correct 18 ms 24300 KB n=1844
75 Correct 17 ms 24300 KB n=2000
76 Correct 19 ms 24300 KB n=2000
77 Correct 19 ms 24300 KB n=2000
78 Correct 18 ms 24300 KB n=2000
79 Correct 18 ms 24300 KB n=2000
80 Correct 19 ms 24300 KB n=2000
81 Correct 19 ms 24556 KB n=2000
82 Correct 18 ms 24300 KB n=2000
83 Correct 22 ms 24292 KB n=2000
84 Correct 18 ms 24300 KB n=2000
85 Correct 19 ms 24428 KB n=2000
86 Correct 23 ms 24292 KB n=2000
87 Correct 19 ms 24300 KB n=2000
88 Correct 18 ms 24428 KB n=2000
89 Correct 19 ms 24428 KB n=2000
90 Correct 18 ms 24428 KB n=2000
91 Correct 18 ms 24300 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 23788 KB n=5
2 Correct 15 ms 24044 KB n=100
3 Correct 18 ms 23916 KB n=100
4 Correct 15 ms 23916 KB n=100
5 Correct 15 ms 23916 KB n=100
6 Correct 15 ms 23916 KB n=100
7 Correct 15 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 15 ms 23916 KB n=100
11 Correct 15 ms 23916 KB n=100
12 Correct 15 ms 23916 KB n=100
13 Correct 15 ms 23916 KB n=100
14 Correct 15 ms 23916 KB n=100
15 Correct 15 ms 23916 KB n=100
16 Correct 16 ms 23916 KB n=100
17 Correct 18 ms 23916 KB n=100
18 Correct 15 ms 23916 KB n=100
19 Correct 15 ms 23916 KB n=100
20 Correct 15 ms 23916 KB n=100
21 Correct 15 ms 23916 KB n=100
22 Correct 15 ms 23916 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 15 ms 23916 KB n=100
25 Correct 15 ms 23916 KB n=100
26 Correct 15 ms 23916 KB n=12
27 Correct 15 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 15 ms 23916 KB n=500
30 Correct 16 ms 24044 KB n=500
31 Correct 18 ms 24064 KB n=500
32 Correct 16 ms 23916 KB n=500
33 Correct 18 ms 23916 KB n=500
34 Correct 15 ms 23916 KB n=500
35 Correct 16 ms 23916 KB n=500
36 Correct 15 ms 23916 KB n=500
37 Correct 16 ms 23908 KB n=500
38 Correct 16 ms 23916 KB n=500
39 Correct 18 ms 23916 KB n=500
40 Correct 15 ms 23916 KB n=500
41 Correct 15 ms 23916 KB n=500
42 Correct 18 ms 23916 KB n=500
43 Correct 16 ms 24044 KB n=500
44 Correct 19 ms 23916 KB n=500
45 Correct 15 ms 23916 KB n=500
46 Correct 15 ms 23916 KB n=500
47 Correct 16 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 15 ms 23916 KB n=500
50 Correct 15 ms 23916 KB n=500
51 Correct 16 ms 23916 KB n=500
52 Correct 15 ms 23916 KB n=500
53 Correct 15 ms 23916 KB n=500
54 Correct 16 ms 23916 KB n=500
55 Correct 15 ms 23916 KB n=278
56 Correct 16 ms 23916 KB n=500
57 Correct 16 ms 23916 KB n=500
58 Correct 18 ms 23916 KB n=500
59 Correct 18 ms 24300 KB n=2000
60 Correct 18 ms 24428 KB n=2000
61 Correct 18 ms 24300 KB n=2000
62 Correct 19 ms 24300 KB n=2000
63 Correct 18 ms 24300 KB n=2000
64 Correct 18 ms 24300 KB n=2000
65 Correct 18 ms 24300 KB n=2000
66 Correct 18 ms 24300 KB n=2000
67 Correct 19 ms 24300 KB n=2000
68 Correct 19 ms 24300 KB n=2000
69 Correct 18 ms 24300 KB n=2000
70 Correct 17 ms 24300 KB n=2000
71 Correct 21 ms 24292 KB n=2000
72 Correct 17 ms 24300 KB n=2000
73 Correct 18 ms 24300 KB n=2000
74 Correct 18 ms 24300 KB n=1844
75 Correct 17 ms 24300 KB n=2000
76 Correct 19 ms 24300 KB n=2000
77 Correct 19 ms 24300 KB n=2000
78 Correct 18 ms 24300 KB n=2000
79 Correct 18 ms 24300 KB n=2000
80 Correct 19 ms 24300 KB n=2000
81 Correct 19 ms 24556 KB n=2000
82 Correct 18 ms 24300 KB n=2000
83 Correct 22 ms 24292 KB n=2000
84 Correct 18 ms 24300 KB n=2000
85 Correct 19 ms 24428 KB n=2000
86 Correct 23 ms 24292 KB n=2000
87 Correct 19 ms 24300 KB n=2000
88 Correct 18 ms 24428 KB n=2000
89 Correct 19 ms 24428 KB n=2000
90 Correct 18 ms 24428 KB n=2000
91 Correct 18 ms 24300 KB n=2000
92 Correct 793 ms 68224 KB n=200000
93 Correct 968 ms 71912 KB n=200000
94 Correct 755 ms 75364 KB n=200000
95 Correct 785 ms 68056 KB n=200000
96 Correct 772 ms 68048 KB n=200000
97 Correct 1036 ms 71012 KB n=200000
98 Correct 763 ms 68180 KB n=200000
99 Correct 918 ms 67672 KB n=200000
100 Correct 789 ms 68232 KB n=200000
101 Correct 664 ms 76644 KB n=200000
102 Correct 469 ms 69092 KB n=200000
103 Correct 472 ms 69092 KB n=200000
104 Correct 465 ms 68964 KB n=200000
105 Correct 463 ms 68964 KB n=200000
106 Correct 476 ms 68708 KB n=200000
107 Correct 472 ms 68668 KB n=200000
108 Correct 813 ms 67600 KB n=200000
109 Correct 811 ms 67696 KB n=200000
110 Correct 811 ms 67684 KB n=200000
111 Correct 733 ms 68080 KB n=200000
112 Correct 670 ms 75620 KB n=200000
113 Correct 965 ms 70884 KB n=200000
114 Correct 744 ms 68052 KB n=200000
115 Correct 1182 ms 68816 KB n=200000
116 Correct 705 ms 67800 KB n=200000
117 Correct 648 ms 75868 KB n=200000
118 Correct 1048 ms 69752 KB n=200000
119 Correct 702 ms 67692 KB n=200000
120 Correct 570 ms 76320 KB n=200000
121 Correct 579 ms 76260 KB n=200000
122 Correct 572 ms 76516 KB n=200000
123 Correct 480 ms 68324 KB n=200000
124 Correct 200 ms 36836 KB n=25264