oj.uz

Submission #831485

# Submission time Handle Problem Language Result Execution time Memory
831485 2023-08-20T09:42:08 Z Cookie Birthday gift (IZhO18_treearray) C++14
100 / 100
 939 ms 81560 KB 
#include<bits/stdc++.h>
#include<fstream>
#pragma GCC optimize("Ofast,O3,unroll-loops")
#pragma GCC target("avx2")
using namespace std;
//ifstream fin("FEEDING.INP");
//ofstream fout("FEEDING.OUT");
#define sz(a) (int)a.size()
#define ll long long
#define pb push_back
#define forr(i, a, b) for(int i = a; i < b; i++)
#define dorr(i, a, b) for(int i = a; i >= b; i--)
#define ld long double
#define vt vector
#include<fstream>
#define fi first
#define se second
#define pll pair<ll, ll>
#define pii pair<int, int>
const int base = 74;
const int mxn = 2e5 + 5;
int n, m, q;
vt<int>adj[mxn + 1];
int dep[mxn + 1], up[mxn + 1][18], a[mxn + 1], tin[mxn + 1], tt = 0, tout[mxn + 1], inf = 1e9;
void dfs(int s, int pre){
    tin[s] = ++tt;
    for(auto i: adj[s]){
        if(i != pre){
            dep[i] = dep[s] + 1;
            dfs(i, s); up[i][0] = s; 
        }
    }
    tout[s] = tt;
}
int lca(int u, int v){
    if(dep[u] < dep[v])swap(u, v);
    int k = dep[u] - dep[v];
    forr(i, 0, 18){
        if(k & (1 << i)){
            u = up[u][i];
        }
    }
    if(u == v)return(u);
    dorr(i, 17, 0){
        if(up[u][i] != up[v][i]){
            u = up[u][i]; v = up[v][i];
        }
    }
    return(up[u][0]);
}
set<int>cand[mxn + 1], app[mxn + 1];
signed main()
{
     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n >> m >> q;
    // if there exist answer, either its (i, i) or (i, i + 1)

    forr(i, 1, n){
        int u, v; cin >> u >> v;
        adj[u].pb(v); adj[v].pb(u);
    }
    
    dfs(1, -1);
    forr(i, 1, 18){
        for(int j = 1; j <= n; j++){
            up[j][i] = up[up[j][i - 1]][i - 1];
        }
    }
    for(int i = 1; i <= m; i++){
        cin >> a[i]; app[a[i]].insert(i);
    }
    for(int i = 2; i <= m; i++){
        cand[lca(a[i - 1], a[i])].insert(i - 1);
    
    }
    while(q--){
        int idq; cin >> idq;
        if(idq == 1){
            int id, x; cin >> id >> x;
            if(id > 1)cand[lca(a[id - 1], a[id])].erase(id - 1); 
            if(id < m)cand[lca(a[id], a[id + 1])].erase(id);
            app[a[id]].erase(id);
            a[id] = x;
            if(id > 1)cand[lca(a[id - 1], a[id])].insert(id - 1); 
            if(id < m)cand[lca(a[id], a[id + 1])].insert(id);
            app[a[id]].insert(id);
        }else{
           int l, r, v; cin >> l >> r >> v;
           auto it = app[v].lower_bound(l);
           if(it != app[v].end() && *it <= r){
               cout << *it << " " << *it << "\n";
           }else{
               auto it2 = cand[v].lower_bound(l);
               if(it2 != cand[v].end() && *it2 < r){
                   cout << *it2 << " " << *it2 + 1 << "\n";
               }else{
                   cout << -1 << " " << -1 << "\n";
               }
           }
        }
    }
    return(0);
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB n=5
2 Correct 13 ms 23816 KB n=100
3 Correct 12 ms 23764 KB n=100
4 Correct 11 ms 23764 KB n=100
5 Correct 12 ms 23816 KB n=100
6 Correct 12 ms 23852 KB n=100
7 Correct 12 ms 23768 KB n=100
8 Correct 12 ms 23764 KB n=100
9 Correct 12 ms 23816 KB n=100
10 Correct 12 ms 23744 KB n=100
11 Correct 12 ms 23816 KB n=100
12 Correct 12 ms 23764 KB n=100
13 Correct 12 ms 23812 KB n=100
14 Correct 12 ms 23736 KB n=100
15 Correct 11 ms 23816 KB n=100
16 Correct 12 ms 23764 KB n=100
17 Correct 12 ms 23812 KB n=100
18 Correct 12 ms 23816 KB n=100
19 Correct 11 ms 23764 KB n=100
20 Correct 12 ms 23764 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 12 ms 23744 KB n=100
23 Correct 12 ms 23764 KB n=100
24 Correct 15 ms 23936 KB n=100
25 Correct 12 ms 23764 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 12 ms 23824 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB n=5
2 Correct 13 ms 23816 KB n=100
3 Correct 12 ms 23764 KB n=100
4 Correct 11 ms 23764 KB n=100
5 Correct 12 ms 23816 KB n=100
6 Correct 12 ms 23852 KB n=100
7 Correct 12 ms 23768 KB n=100
8 Correct 12 ms 23764 KB n=100
9 Correct 12 ms 23816 KB n=100
10 Correct 12 ms 23744 KB n=100
11 Correct 12 ms 23816 KB n=100
12 Correct 12 ms 23764 KB n=100
13 Correct 12 ms 23812 KB n=100
14 Correct 12 ms 23736 KB n=100
15 Correct 11 ms 23816 KB n=100
16 Correct 12 ms 23764 KB n=100
17 Correct 12 ms 23812 KB n=100
18 Correct 12 ms 23816 KB n=100
19 Correct 11 ms 23764 KB n=100
20 Correct 12 ms 23764 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 12 ms 23744 KB n=100
23 Correct 12 ms 23764 KB n=100
24 Correct 15 ms 23936 KB n=100
25 Correct 12 ms 23764 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 12 ms 23824 KB n=100
28 Correct 12 ms 23940 KB n=500
29 Correct 12 ms 23900 KB n=500
30 Correct 12 ms 23952 KB n=500
31 Correct 12 ms 23892 KB n=500
32 Correct 13 ms 23948 KB n=500
33 Correct 12 ms 23952 KB n=500
34 Correct 12 ms 23948 KB n=500
35 Correct 12 ms 23896 KB n=500
36 Correct 13 ms 23892 KB n=500
37 Correct 12 ms 23892 KB n=500
38 Correct 12 ms 23864 KB n=500
39 Correct 12 ms 23892 KB n=500
40 Correct 12 ms 23948 KB n=500
41 Correct 12 ms 23892 KB n=500
42 Correct 12 ms 23904 KB n=500
43 Correct 12 ms 23928 KB n=500
44 Correct 12 ms 23892 KB n=500
45 Correct 12 ms 23948 KB n=500
46 Correct 12 ms 23952 KB n=500
47 Correct 14 ms 23988 KB n=500
48 Correct 12 ms 23892 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 12 ms 23892 KB n=500
51 Correct 12 ms 23892 KB n=500
52 Correct 12 ms 23892 KB n=500
53 Correct 13 ms 23952 KB n=500
54 Correct 12 ms 23896 KB n=500
55 Correct 11 ms 23832 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 14 ms 23952 KB n=500
58 Correct 13 ms 23892 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB n=5
2 Correct 13 ms 23816 KB n=100
3 Correct 12 ms 23764 KB n=100
4 Correct 11 ms 23764 KB n=100
5 Correct 12 ms 23816 KB n=100
6 Correct 12 ms 23852 KB n=100
7 Correct 12 ms 23768 KB n=100
8 Correct 12 ms 23764 KB n=100
9 Correct 12 ms 23816 KB n=100
10 Correct 12 ms 23744 KB n=100
11 Correct 12 ms 23816 KB n=100
12 Correct 12 ms 23764 KB n=100
13 Correct 12 ms 23812 KB n=100
14 Correct 12 ms 23736 KB n=100
15 Correct 11 ms 23816 KB n=100
16 Correct 12 ms 23764 KB n=100
17 Correct 12 ms 23812 KB n=100
18 Correct 12 ms 23816 KB n=100
19 Correct 11 ms 23764 KB n=100
20 Correct 12 ms 23764 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 12 ms 23744 KB n=100
23 Correct 12 ms 23764 KB n=100
24 Correct 15 ms 23936 KB n=100
25 Correct 12 ms 23764 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 12 ms 23824 KB n=100
28 Correct 12 ms 23940 KB n=500
29 Correct 12 ms 23900 KB n=500
30 Correct 12 ms 23952 KB n=500
31 Correct 12 ms 23892 KB n=500
32 Correct 13 ms 23948 KB n=500
33 Correct 12 ms 23952 KB n=500
34 Correct 12 ms 23948 KB n=500
35 Correct 12 ms 23896 KB n=500
36 Correct 13 ms 23892 KB n=500
37 Correct 12 ms 23892 KB n=500
38 Correct 12 ms 23864 KB n=500
39 Correct 12 ms 23892 KB n=500
40 Correct 12 ms 23948 KB n=500
41 Correct 12 ms 23892 KB n=500
42 Correct 12 ms 23904 KB n=500
43 Correct 12 ms 23928 KB n=500
44 Correct 12 ms 23892 KB n=500
45 Correct 12 ms 23948 KB n=500
46 Correct 12 ms 23952 KB n=500
47 Correct 14 ms 23988 KB n=500
48 Correct 12 ms 23892 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 12 ms 23892 KB n=500
51 Correct 12 ms 23892 KB n=500
52 Correct 12 ms 23892 KB n=500
53 Correct 13 ms 23952 KB n=500
54 Correct 12 ms 23896 KB n=500
55 Correct 11 ms 23832 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 14 ms 23952 KB n=500
58 Correct 13 ms 23892 KB n=500
59 Correct 13 ms 24208 KB n=2000
60 Correct 15 ms 24276 KB n=2000
61 Correct 14 ms 24336 KB n=2000
62 Correct 14 ms 24256 KB n=2000
63 Correct 14 ms 24208 KB n=2000
64 Correct 15 ms 24264 KB n=2000
65 Correct 14 ms 24276 KB n=2000
66 Correct 14 ms 24276 KB n=2000
67 Correct 16 ms 24276 KB n=2000
68 Correct 14 ms 24336 KB n=2000
69 Correct 15 ms 24276 KB n=2000
70 Correct 13 ms 24208 KB n=2000
71 Correct 15 ms 24276 KB n=2000
72 Correct 14 ms 24304 KB n=2000
73 Correct 14 ms 24288 KB n=2000
74 Correct 14 ms 24276 KB n=1844
75 Correct 14 ms 24200 KB n=2000
76 Correct 14 ms 24216 KB n=2000
77 Correct 14 ms 24212 KB n=2000
78 Correct 14 ms 24276 KB n=2000
79 Correct 13 ms 24208 KB n=2000
80 Correct 15 ms 24276 KB n=2000
81 Correct 14 ms 24340 KB n=2000
82 Correct 14 ms 24276 KB n=2000
83 Correct 14 ms 24356 KB n=2000
84 Correct 14 ms 24296 KB n=2000
85 Correct 14 ms 24288 KB n=2000
86 Correct 14 ms 24276 KB n=2000
87 Correct 15 ms 24228 KB n=2000
88 Correct 14 ms 24272 KB n=2000
89 Correct 14 ms 24276 KB n=2000
90 Correct 14 ms 24356 KB n=2000
91 Correct 14 ms 24208 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 23764 KB n=5
2 Correct 13 ms 23816 KB n=100
3 Correct 12 ms 23764 KB n=100
4 Correct 11 ms 23764 KB n=100
5 Correct 12 ms 23816 KB n=100
6 Correct 12 ms 23852 KB n=100
7 Correct 12 ms 23768 KB n=100
8 Correct 12 ms 23764 KB n=100
9 Correct 12 ms 23816 KB n=100
10 Correct 12 ms 23744 KB n=100
11 Correct 12 ms 23816 KB n=100
12 Correct 12 ms 23764 KB n=100
13 Correct 12 ms 23812 KB n=100
14 Correct 12 ms 23736 KB n=100
15 Correct 11 ms 23816 KB n=100
16 Correct 12 ms 23764 KB n=100
17 Correct 12 ms 23812 KB n=100
18 Correct 12 ms 23816 KB n=100
19 Correct 11 ms 23764 KB n=100
20 Correct 12 ms 23764 KB n=100
21 Correct 12 ms 23764 KB n=100
22 Correct 12 ms 23744 KB n=100
23 Correct 12 ms 23764 KB n=100
24 Correct 15 ms 23936 KB n=100
25 Correct 12 ms 23764 KB n=100
26 Correct 12 ms 23764 KB n=12
27 Correct 12 ms 23824 KB n=100
28 Correct 12 ms 23940 KB n=500
29 Correct 12 ms 23900 KB n=500
30 Correct 12 ms 23952 KB n=500
31 Correct 12 ms 23892 KB n=500
32 Correct 13 ms 23948 KB n=500
33 Correct 12 ms 23952 KB n=500
34 Correct 12 ms 23948 KB n=500
35 Correct 12 ms 23896 KB n=500
36 Correct 13 ms 23892 KB n=500
37 Correct 12 ms 23892 KB n=500
38 Correct 12 ms 23864 KB n=500
39 Correct 12 ms 23892 KB n=500
40 Correct 12 ms 23948 KB n=500
41 Correct 12 ms 23892 KB n=500
42 Correct 12 ms 23904 KB n=500
43 Correct 12 ms 23928 KB n=500
44 Correct 12 ms 23892 KB n=500
45 Correct 12 ms 23948 KB n=500
46 Correct 12 ms 23952 KB n=500
47 Correct 14 ms 23988 KB n=500
48 Correct 12 ms 23892 KB n=500
49 Correct 12 ms 23892 KB n=500
50 Correct 12 ms 23892 KB n=500
51 Correct 12 ms 23892 KB n=500
52 Correct 12 ms 23892 KB n=500
53 Correct 13 ms 23952 KB n=500
54 Correct 12 ms 23896 KB n=500
55 Correct 11 ms 23832 KB n=278
56 Correct 12 ms 23892 KB n=500
57 Correct 14 ms 23952 KB n=500
58 Correct 13 ms 23892 KB n=500
59 Correct 13 ms 24208 KB n=2000
60 Correct 15 ms 24276 KB n=2000
61 Correct 14 ms 24336 KB n=2000
62 Correct 14 ms 24256 KB n=2000
63 Correct 14 ms 24208 KB n=2000
64 Correct 15 ms 24264 KB n=2000
65 Correct 14 ms 24276 KB n=2000
66 Correct 14 ms 24276 KB n=2000
67 Correct 16 ms 24276 KB n=2000
68 Correct 14 ms 24336 KB n=2000
69 Correct 15 ms 24276 KB n=2000
70 Correct 13 ms 24208 KB n=2000
71 Correct 15 ms 24276 KB n=2000
72 Correct 14 ms 24304 KB n=2000
73 Correct 14 ms 24288 KB n=2000
74 Correct 14 ms 24276 KB n=1844
75 Correct 14 ms 24200 KB n=2000
76 Correct 14 ms 24216 KB n=2000
77 Correct 14 ms 24212 KB n=2000
78 Correct 14 ms 24276 KB n=2000
79 Correct 13 ms 24208 KB n=2000
80 Correct 15 ms 24276 KB n=2000
81 Correct 14 ms 24340 KB n=2000
82 Correct 14 ms 24276 KB n=2000
83 Correct 14 ms 24356 KB n=2000
84 Correct 14 ms 24296 KB n=2000
85 Correct 14 ms 24288 KB n=2000
86 Correct 14 ms 24276 KB n=2000
87 Correct 15 ms 24228 KB n=2000
88 Correct 14 ms 24272 KB n=2000
89 Correct 14 ms 24276 KB n=2000
90 Correct 14 ms 24356 KB n=2000
91 Correct 14 ms 24208 KB n=2000
92 Correct 539 ms 68876 KB n=200000
93 Correct 695 ms 78224 KB n=200000
94 Correct 618 ms 80724 KB n=200000
95 Correct 582 ms 74292 KB n=200000
96 Correct 524 ms 74464 KB n=200000
97 Correct 939 ms 77584 KB n=200000
98 Correct 666 ms 74300 KB n=200000
99 Correct 637 ms 74528 KB n=200000
100 Correct 598 ms 74352 KB n=200000
101 Correct 762 ms 81560 KB n=200000
102 Correct 341 ms 75528 KB n=200000
103 Correct 306 ms 75548 KB n=200000
104 Correct 348 ms 75556 KB n=200000
105 Correct 303 ms 75936 KB n=200000
106 Correct 326 ms 75920 KB n=200000
107 Correct 300 ms 75904 KB n=200000
108 Correct 557 ms 74444 KB n=200000
109 Correct 563 ms 74356 KB n=200000
110 Correct 563 ms 74356 KB n=200000
111 Correct 538 ms 73932 KB n=200000
112 Correct 633 ms 80948 KB n=200000
113 Correct 703 ms 77688 KB n=200000
114 Correct 499 ms 73932 KB n=200000
115 Correct 747 ms 76060 KB n=200000
116 Correct 493 ms 74548 KB n=200000
117 Correct 609 ms 81092 KB n=200000
118 Correct 705 ms 76620 KB n=200000
119 Correct 492 ms 74540 KB n=200000
120 Correct 559 ms 80588 KB n=200000
121 Correct 547 ms 80600 KB n=200000
122 Correct 541 ms 80872 KB n=200000
123 Correct 282 ms 75732 KB n=200000
124 Correct 124 ms 38416 KB n=25264