oj.uz

Submission #341701

# Submission time Handle Problem Language Result Execution time Memory
341701 2020-12-30T13:20:11 Z ivan_tudor Birthday gift (IZhO18_treearray) C++14
100 / 100
 1650 ms 87448 KB 
#include<bits/stdc++.h>
using namespace std;
const int N = 2*1e5 + 5;
vector<int> gr[N];
int par[18][N];
int in[N], out[N];
void dfs(int nod, int dad, int &cnt){
  par[0][nod] = dad;
  in[nod]= ++cnt;
  for(auto x :gr[nod]){
    if(x!=dad)
      dfs(x, nod, cnt);
  }
  out[nod] = cnt;
}
bool is_dad(int dad, int nod){
  if(in[dad]<= in[nod] && out[nod]<= out[dad])
    return true;
  return false;
}
int get_lca(int a,int b){
  for(int log = 17; log>=0; log--){
    if(par[log][a]!=0 && is_dad(par[log][a], b)== false)
      a = par[log][a];
  }
  if(is_dad(a, b) == false)
    a = par[0][a];
  return a;
}
int v[N];
int lc[N];
set<int> pzv[N];
set<int> pzl[N];
int query(set<int> &pz, int l,int r){
  auto it = pz.lower_bound(l);
  if(it==pz.end())
    return -1;
  if((*it) <=r)
    return (*it);
  return -1;
}
int main()
{
  //freopen(".in","r",stdin);
  ios::sync_with_stdio(false);
  cin.tie(0),cout.tie(0);
  int n, m, q;
  cin>>n>>m>>q;
  for(int i=1;i<n;i++){
    int a, b;
    cin>>a>>b;
    gr[a].push_back(b);
    gr[b].push_back(a);
  }
  int cnt =0;
  dfs(1, 0, cnt);
  for(int log =1 ; log < 18; log ++){
    for(int nod = 1; nod<=n;nod++){
      par[log][nod] = par[log-1][par[log-1][nod]];
    }
  }
  for(int i=1;i<=m;i++){
    cin>>v[i];
    pzv[v[i]].insert(i);
  }
  for(int i=1;i<m;i++){
    lc[i] = get_lca(v[i], v[i+1]);
    pzl[lc[i]].insert(i);
  }
  for(int i=1;i<=q;i++){
    int tip;
    cin>>tip;
    if(tip == 1){
      int poz, val;
      cin>>poz>>val;
      pzv[v[poz]].erase(poz);
      if(poz < m)
        pzl[lc[poz]].erase(poz);
      if(poz > 1)
        pzl[lc[poz-1]].erase(poz - 1);

      v[poz] = val;
      pzv[v[poz]].insert(poz);
      if(poz < m){
        lc[poz] = get_lca(v[poz], v[poz + 1]);
        pzl[lc[poz]].insert(poz);
      }
      if(poz > 1){
        lc[poz-1] = get_lca(v[poz-1], v[poz]);
        pzl[lc[poz-1]].insert(poz -1);
      }
    }
    else {
      int val, l , r;
      cin>>l>>r>>val;
      int ans = query(pzv[val], l, r);
      if(ans != -1){
        cout<<ans<<" "<<ans<<"\n";
        continue;
      }
      ans = query(pzl[val], l, r-1);
      if(ans!= -1){
        cout<<ans<<" "<<ans + 1<<"\n";
        continue;
      }
      cout<<"-1"<<" "<<"-1"<<"\n";
    }

  }
  return 0;
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 23916 KB n=5
2 Correct 17 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 19 ms 23916 KB n=100
6 Correct 16 ms 24044 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 19 ms 23916 KB n=100
9 Correct 19 ms 23916 KB n=100
10 Correct 17 ms 23916 KB n=100
11 Correct 18 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 17 ms 24044 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 19 ms 23936 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 17 ms 23916 KB n=100
20 Correct 17 ms 24044 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 20 ms 23916 KB n=100
23 Correct 17 ms 23936 KB n=100
24 Correct 17 ms 23916 KB n=100
25 Correct 17 ms 23916 KB n=100
26 Correct 16 ms 23916 KB n=12
27 Correct 16 ms 23916 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 23916 KB n=5
2 Correct 17 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 19 ms 23916 KB n=100
6 Correct 16 ms 24044 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 19 ms 23916 KB n=100
9 Correct 19 ms 23916 KB n=100
10 Correct 17 ms 23916 KB n=100
11 Correct 18 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 17 ms 24044 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 19 ms 23936 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 17 ms 23916 KB n=100
20 Correct 17 ms 24044 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 20 ms 23916 KB n=100
23 Correct 17 ms 23936 KB n=100
24 Correct 17 ms 23916 KB n=100
25 Correct 17 ms 23916 KB n=100
26 Correct 16 ms 23916 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 24044 KB n=500
29 Correct 17 ms 24044 KB n=500
30 Correct 18 ms 24044 KB n=500
31 Correct 17 ms 24044 KB n=500
32 Correct 17 ms 24044 KB n=500
33 Correct 17 ms 24044 KB n=500
34 Correct 17 ms 24044 KB n=500
35 Correct 17 ms 24172 KB n=500
36 Correct 17 ms 24044 KB n=500
37 Correct 17 ms 24044 KB n=500
38 Correct 17 ms 24044 KB n=500
39 Correct 17 ms 24172 KB n=500
40 Correct 17 ms 24044 KB n=500
41 Correct 17 ms 24044 KB n=500
42 Correct 17 ms 24044 KB n=500
43 Correct 17 ms 24044 KB n=500
44 Correct 18 ms 24044 KB n=500
45 Correct 17 ms 24044 KB n=500
46 Correct 17 ms 24044 KB n=500
47 Correct 18 ms 24044 KB n=500
48 Correct 17 ms 24044 KB n=500
49 Correct 17 ms 24044 KB n=500
50 Correct 20 ms 24044 KB n=500
51 Correct 18 ms 24044 KB n=500
52 Correct 17 ms 24044 KB n=500
53 Correct 17 ms 24044 KB n=500
54 Correct 18 ms 24044 KB n=500
55 Correct 17 ms 24044 KB n=278
56 Correct 17 ms 24044 KB n=500
57 Correct 17 ms 24044 KB n=500
58 Correct 17 ms 24044 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 23916 KB n=5
2 Correct 17 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 19 ms 23916 KB n=100
6 Correct 16 ms 24044 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 19 ms 23916 KB n=100
9 Correct 19 ms 23916 KB n=100
10 Correct 17 ms 23916 KB n=100
11 Correct 18 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 17 ms 24044 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 19 ms 23936 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 17 ms 23916 KB n=100
20 Correct 17 ms 24044 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 20 ms 23916 KB n=100
23 Correct 17 ms 23936 KB n=100
24 Correct 17 ms 23916 KB n=100
25 Correct 17 ms 23916 KB n=100
26 Correct 16 ms 23916 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 24044 KB n=500
29 Correct 17 ms 24044 KB n=500
30 Correct 18 ms 24044 KB n=500
31 Correct 17 ms 24044 KB n=500
32 Correct 17 ms 24044 KB n=500
33 Correct 17 ms 24044 KB n=500
34 Correct 17 ms 24044 KB n=500
35 Correct 17 ms 24172 KB n=500
36 Correct 17 ms 24044 KB n=500
37 Correct 17 ms 24044 KB n=500
38 Correct 17 ms 24044 KB n=500
39 Correct 17 ms 24172 KB n=500
40 Correct 17 ms 24044 KB n=500
41 Correct 17 ms 24044 KB n=500
42 Correct 17 ms 24044 KB n=500
43 Correct 17 ms 24044 KB n=500
44 Correct 18 ms 24044 KB n=500
45 Correct 17 ms 24044 KB n=500
46 Correct 17 ms 24044 KB n=500
47 Correct 18 ms 24044 KB n=500
48 Correct 17 ms 24044 KB n=500
49 Correct 17 ms 24044 KB n=500
50 Correct 20 ms 24044 KB n=500
51 Correct 18 ms 24044 KB n=500
52 Correct 17 ms 24044 KB n=500
53 Correct 17 ms 24044 KB n=500
54 Correct 18 ms 24044 KB n=500
55 Correct 17 ms 24044 KB n=278
56 Correct 17 ms 24044 KB n=500
57 Correct 17 ms 24044 KB n=500
58 Correct 17 ms 24044 KB n=500
59 Correct 19 ms 24428 KB n=2000
60 Correct 20 ms 24556 KB n=2000
61 Correct 21 ms 24556 KB n=2000
62 Correct 21 ms 24556 KB n=2000
63 Correct 20 ms 24428 KB n=2000
64 Correct 20 ms 24556 KB n=2000
65 Correct 20 ms 24428 KB n=2000
66 Correct 20 ms 24556 KB n=2000
67 Correct 24 ms 24428 KB n=2000
68 Correct 23 ms 24556 KB n=2000
69 Correct 19 ms 24428 KB n=2000
70 Correct 19 ms 24428 KB n=2000
71 Correct 19 ms 24428 KB n=2000
72 Correct 20 ms 24556 KB n=2000
73 Correct 20 ms 24428 KB n=2000
74 Correct 19 ms 24428 KB n=1844
75 Correct 19 ms 24428 KB n=2000
76 Correct 20 ms 24428 KB n=2000
77 Correct 20 ms 24428 KB n=2000
78 Correct 20 ms 24428 KB n=2000
79 Correct 20 ms 24428 KB n=2000
80 Correct 20 ms 24556 KB n=2000
81 Correct 21 ms 24556 KB n=2000
82 Correct 20 ms 24428 KB n=2000
83 Correct 20 ms 24556 KB n=2000
84 Correct 20 ms 24556 KB n=2000
85 Correct 20 ms 24428 KB n=2000
86 Correct 20 ms 24428 KB n=2000
87 Correct 20 ms 24428 KB n=2000
88 Correct 20 ms 24556 KB n=2000
89 Correct 20 ms 24556 KB n=2000
90 Correct 20 ms 24556 KB n=2000
91 Correct 19 ms 24428 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 23916 KB n=5
2 Correct 17 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 19 ms 23916 KB n=100
6 Correct 16 ms 24044 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 19 ms 23916 KB n=100
9 Correct 19 ms 23916 KB n=100
10 Correct 17 ms 23916 KB n=100
11 Correct 18 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 17 ms 24044 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 19 ms 23936 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 17 ms 23916 KB n=100
20 Correct 17 ms 24044 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 20 ms 23916 KB n=100
23 Correct 17 ms 23936 KB n=100
24 Correct 17 ms 23916 KB n=100
25 Correct 17 ms 23916 KB n=100
26 Correct 16 ms 23916 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 24044 KB n=500
29 Correct 17 ms 24044 KB n=500
30 Correct 18 ms 24044 KB n=500
31 Correct 17 ms 24044 KB n=500
32 Correct 17 ms 24044 KB n=500
33 Correct 17 ms 24044 KB n=500
34 Correct 17 ms 24044 KB n=500
35 Correct 17 ms 24172 KB n=500
36 Correct 17 ms 24044 KB n=500
37 Correct 17 ms 24044 KB n=500
38 Correct 17 ms 24044 KB n=500
39 Correct 17 ms 24172 KB n=500
40 Correct 17 ms 24044 KB n=500
41 Correct 17 ms 24044 KB n=500
42 Correct 17 ms 24044 KB n=500
43 Correct 17 ms 24044 KB n=500
44 Correct 18 ms 24044 KB n=500
45 Correct 17 ms 24044 KB n=500
46 Correct 17 ms 24044 KB n=500
47 Correct 18 ms 24044 KB n=500
48 Correct 17 ms 24044 KB n=500
49 Correct 17 ms 24044 KB n=500
50 Correct 20 ms 24044 KB n=500
51 Correct 18 ms 24044 KB n=500
52 Correct 17 ms 24044 KB n=500
53 Correct 17 ms 24044 KB n=500
54 Correct 18 ms 24044 KB n=500
55 Correct 17 ms 24044 KB n=278
56 Correct 17 ms 24044 KB n=500
57 Correct 17 ms 24044 KB n=500
58 Correct 17 ms 24044 KB n=500
59 Correct 19 ms 24428 KB n=2000
60 Correct 20 ms 24556 KB n=2000
61 Correct 21 ms 24556 KB n=2000
62 Correct 21 ms 24556 KB n=2000
63 Correct 20 ms 24428 KB n=2000
64 Correct 20 ms 24556 KB n=2000
65 Correct 20 ms 24428 KB n=2000
66 Correct 20 ms 24556 KB n=2000
67 Correct 24 ms 24428 KB n=2000
68 Correct 23 ms 24556 KB n=2000
69 Correct 19 ms 24428 KB n=2000
70 Correct 19 ms 24428 KB n=2000
71 Correct 19 ms 24428 KB n=2000
72 Correct 20 ms 24556 KB n=2000
73 Correct 20 ms 24428 KB n=2000
74 Correct 19 ms 24428 KB n=1844
75 Correct 19 ms 24428 KB n=2000
76 Correct 20 ms 24428 KB n=2000
77 Correct 20 ms 24428 KB n=2000
78 Correct 20 ms 24428 KB n=2000
79 Correct 20 ms 24428 KB n=2000
80 Correct 20 ms 24556 KB n=2000
81 Correct 21 ms 24556 KB n=2000
82 Correct 20 ms 24428 KB n=2000
83 Correct 20 ms 24556 KB n=2000
84 Correct 20 ms 24556 KB n=2000
85 Correct 20 ms 24428 KB n=2000
86 Correct 20 ms 24428 KB n=2000
87 Correct 20 ms 24428 KB n=2000
88 Correct 20 ms 24556 KB n=2000
89 Correct 20 ms 24556 KB n=2000
90 Correct 20 ms 24556 KB n=2000
91 Correct 19 ms 24428 KB n=2000
92 Correct 906 ms 74724 KB n=200000
93 Correct 1543 ms 81132 KB n=200000
94 Correct 1497 ms 85652 KB n=200000
95 Correct 873 ms 74464 KB n=200000
96 Correct 823 ms 74464 KB n=200000
97 Correct 1553 ms 79980 KB n=200000
98 Correct 873 ms 74764 KB n=200000
99 Correct 971 ms 74860 KB n=200000
100 Correct 881 ms 74596 KB n=200000
101 Correct 1516 ms 87448 KB n=200000
102 Correct 498 ms 75700 KB n=200000
103 Correct 491 ms 75628 KB n=200000
104 Correct 478 ms 75628 KB n=200000
105 Correct 497 ms 76140 KB n=200000
106 Correct 493 ms 76068 KB n=200000
107 Correct 491 ms 76140 KB n=200000
108 Correct 901 ms 74604 KB n=200000
109 Correct 901 ms 74564 KB n=200000
110 Correct 903 ms 74632 KB n=200000
111 Correct 863 ms 73956 KB n=200000
112 Correct 1513 ms 85996 KB n=200000
113 Correct 1556 ms 79980 KB n=200000
114 Correct 847 ms 74028 KB n=200000
115 Correct 1650 ms 77164 KB n=200000
116 Correct 834 ms 74720 KB n=200000
117 Correct 1485 ms 86380 KB n=200000
118 Correct 1570 ms 78408 KB n=200000
119 Correct 825 ms 74584 KB n=200000
120 Correct 1432 ms 86444 KB n=200000
121 Correct 1434 ms 86380 KB n=200000
122 Correct 1450 ms 86624 KB n=200000
123 Correct 516 ms 75884 KB n=200000
124 Correct 324 ms 39404 KB n=25264