oj.uz

Submission #922917

# Submission time Handle Problem Language Result Execution time Memory
922917 2024-02-06T09:23:55 Z Aiperiii Birthday gift (IZhO18_treearray) C++14
100 / 100
 1124 ms 76880 KB 
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
const int N=2e5+5;
vector <int> g[N];
int p[N],d[N],jmp[N][20];
void dfs(int v,int par){
   p[v]=par;
   for(auto to : g[v]){
      if(to!=par){
         d[to]=d[v]+1;
         dfs(to,v);
      }
   }
}
int lca(int a,int b){
   if(d[a]<d[b])swap(a,b);
   for(int i=19;i>=0;i--){
      if(d[jmp[a][i]]>=d[b]){
         a=jmp[a][i];
      }
   }
   if(a==b)return a;
   for(int i=19;i>=0;i--){
      if(jmp[a][i]!=jmp[b][i]){
         a=jmp[a][i];
         b=jmp[b][i];
      }
   }
   return p[a];
}
signed main(){
   ios_base::sync_with_stdio();
   cin.tie(0);cout.tie(0);
   int n,m,q;
   cin>>n>>m>>q;
   for(int i=0;i<n-1;i++){
      int u,v;
      cin>>u>>v;
      g[u].pb(v);g[v].pb(u);
   }
   dfs(1,1);
   for(int i=1;i<=n;i++){
      jmp[i][0]=p[i];
   }
   for(int i=1;i<20;i++){
      for(int j=1;j<=n;j++){
         jmp[j][i]=jmp[jmp[j][i-1]][i-1];
      }
   }
   vector <int> a(m+1);
   for(int i=1;i<=m;i++)cin>>a[i];
   set <int> pairs[n+1],ver[n+1];
   for(int i=1;i<m;i++){
      pairs[lca(a[i],a[i+1])].insert(i);
   }
   for(int i=1;i<=m;i++){
      ver[a[i]].insert(i);
   }
   while(q--){
     int type,l,r,v,pos;
     cin>>type;
     if(type==1){
        cin>>pos>>v;
        ver[a[pos]].erase(pos);
        ver[v].insert(pos);
        if(pos+1<=m){
           pairs[lca(a[pos],a[pos+1])].erase(pos);
           pairs[lca(v,a[pos+1])].insert(pos);
        }
        if(pos-1>=1){
           pairs[lca(a[pos-1],a[pos])].erase(pos-1);
           pairs[lca(a[pos-1],v)].insert(pos-1);
        }
        a[pos]=v;
     }
     else{
        cin>>l>>r>>v;
        int L=-1,R=-1;
        auto it=pairs[v].lower_bound(l);
        if(it!=pairs[v].end() && *it+1<=r && *it>=l){
           L=*it;R=*it+1;
        }
        it=ver[v].lower_bound(l);
        if(it!=ver[v].end() && *it<=r && *it>=l){
           L=*it;R=*it;
        }
        cout<<L<<" "<<R<<"\n";
     }
  }
}
 
/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1
 */

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7768 KB n=5
2 Correct 2 ms 7772 KB n=100
3 Correct 2 ms 7768 KB n=100
4 Correct 2 ms 7768 KB n=100
5 Correct 2 ms 7772 KB n=100
6 Correct 2 ms 7768 KB n=100
7 Correct 2 ms 7772 KB n=100
8 Correct 2 ms 7772 KB n=100
9 Correct 2 ms 7772 KB n=100
10 Correct 2 ms 7772 KB n=100
11 Correct 3 ms 7772 KB n=100
12 Correct 2 ms 7768 KB n=100
13 Correct 2 ms 7772 KB n=100
14 Correct 2 ms 7772 KB n=100
15 Correct 2 ms 7772 KB n=100
16 Correct 2 ms 7772 KB n=100
17 Correct 2 ms 7772 KB n=100
18 Correct 3 ms 7772 KB n=100
19 Correct 2 ms 7772 KB n=100
20 Correct 2 ms 7772 KB n=100
21 Correct 2 ms 7772 KB n=100
22 Correct 4 ms 7924 KB n=100
23 Correct 2 ms 7772 KB n=100
24 Correct 3 ms 7772 KB n=100
25 Correct 2 ms 7772 KB n=100
26 Correct 3 ms 7772 KB n=12
27 Correct 2 ms 7768 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7768 KB n=5
2 Correct 2 ms 7772 KB n=100
3 Correct 2 ms 7768 KB n=100
4 Correct 2 ms 7768 KB n=100
5 Correct 2 ms 7772 KB n=100
6 Correct 2 ms 7768 KB n=100
7 Correct 2 ms 7772 KB n=100
8 Correct 2 ms 7772 KB n=100
9 Correct 2 ms 7772 KB n=100
10 Correct 2 ms 7772 KB n=100
11 Correct 3 ms 7772 KB n=100
12 Correct 2 ms 7768 KB n=100
13 Correct 2 ms 7772 KB n=100
14 Correct 2 ms 7772 KB n=100
15 Correct 2 ms 7772 KB n=100
16 Correct 2 ms 7772 KB n=100
17 Correct 2 ms 7772 KB n=100
18 Correct 3 ms 7772 KB n=100
19 Correct 2 ms 7772 KB n=100
20 Correct 2 ms 7772 KB n=100
21 Correct 2 ms 7772 KB n=100
22 Correct 4 ms 7924 KB n=100
23 Correct 2 ms 7772 KB n=100
24 Correct 3 ms 7772 KB n=100
25 Correct 2 ms 7772 KB n=100
26 Correct 3 ms 7772 KB n=12
27 Correct 2 ms 7768 KB n=100
28 Correct 3 ms 7772 KB n=500
29 Correct 3 ms 7772 KB n=500
30 Correct 3 ms 7772 KB n=500
31 Correct 3 ms 7772 KB n=500
32 Correct 3 ms 7768 KB n=500
33 Correct 3 ms 7768 KB n=500
34 Correct 3 ms 7772 KB n=500
35 Correct 3 ms 7772 KB n=500
36 Correct 2 ms 7772 KB n=500
37 Correct 3 ms 7772 KB n=500
38 Correct 3 ms 7768 KB n=500
39 Correct 3 ms 7828 KB n=500
40 Correct 3 ms 7772 KB n=500
41 Correct 3 ms 7768 KB n=500
42 Correct 3 ms 7772 KB n=500
43 Correct 3 ms 7772 KB n=500
44 Correct 3 ms 7768 KB n=500
45 Correct 3 ms 7772 KB n=500
46 Correct 3 ms 7768 KB n=500
47 Correct 3 ms 7768 KB n=500
48 Correct 3 ms 7772 KB n=500
49 Correct 3 ms 7772 KB n=500
50 Correct 3 ms 7772 KB n=500
51 Correct 3 ms 7768 KB n=500
52 Correct 3 ms 7772 KB n=500
53 Correct 3 ms 7772 KB n=500
54 Correct 3 ms 7772 KB n=500
55 Correct 4 ms 7772 KB n=278
56 Correct 3 ms 7772 KB n=500
57 Correct 3 ms 7772 KB n=500
58 Correct 3 ms 8184 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7768 KB n=5
2 Correct 2 ms 7772 KB n=100
3 Correct 2 ms 7768 KB n=100
4 Correct 2 ms 7768 KB n=100
5 Correct 2 ms 7772 KB n=100
6 Correct 2 ms 7768 KB n=100
7 Correct 2 ms 7772 KB n=100
8 Correct 2 ms 7772 KB n=100
9 Correct 2 ms 7772 KB n=100
10 Correct 2 ms 7772 KB n=100
11 Correct 3 ms 7772 KB n=100
12 Correct 2 ms 7768 KB n=100
13 Correct 2 ms 7772 KB n=100
14 Correct 2 ms 7772 KB n=100
15 Correct 2 ms 7772 KB n=100
16 Correct 2 ms 7772 KB n=100
17 Correct 2 ms 7772 KB n=100
18 Correct 3 ms 7772 KB n=100
19 Correct 2 ms 7772 KB n=100
20 Correct 2 ms 7772 KB n=100
21 Correct 2 ms 7772 KB n=100
22 Correct 4 ms 7924 KB n=100
23 Correct 2 ms 7772 KB n=100
24 Correct 3 ms 7772 KB n=100
25 Correct 2 ms 7772 KB n=100
26 Correct 3 ms 7772 KB n=12
27 Correct 2 ms 7768 KB n=100
28 Correct 3 ms 7772 KB n=500
29 Correct 3 ms 7772 KB n=500
30 Correct 3 ms 7772 KB n=500
31 Correct 3 ms 7772 KB n=500
32 Correct 3 ms 7768 KB n=500
33 Correct 3 ms 7768 KB n=500
34 Correct 3 ms 7772 KB n=500
35 Correct 3 ms 7772 KB n=500
36 Correct 2 ms 7772 KB n=500
37 Correct 3 ms 7772 KB n=500
38 Correct 3 ms 7768 KB n=500
39 Correct 3 ms 7828 KB n=500
40 Correct 3 ms 7772 KB n=500
41 Correct 3 ms 7768 KB n=500
42 Correct 3 ms 7772 KB n=500
43 Correct 3 ms 7772 KB n=500
44 Correct 3 ms 7768 KB n=500
45 Correct 3 ms 7772 KB n=500
46 Correct 3 ms 7768 KB n=500
47 Correct 3 ms 7768 KB n=500
48 Correct 3 ms 7772 KB n=500
49 Correct 3 ms 7772 KB n=500
50 Correct 3 ms 7772 KB n=500
51 Correct 3 ms 7768 KB n=500
52 Correct 3 ms 7772 KB n=500
53 Correct 3 ms 7772 KB n=500
54 Correct 3 ms 7772 KB n=500
55 Correct 4 ms 7772 KB n=278
56 Correct 3 ms 7772 KB n=500
57 Correct 3 ms 7772 KB n=500
58 Correct 3 ms 8184 KB n=500
59 Correct 6 ms 8284 KB n=2000
60 Correct 6 ms 8284 KB n=2000
61 Correct 6 ms 8368 KB n=2000
62 Correct 6 ms 8284 KB n=2000
63 Correct 6 ms 8284 KB n=2000
64 Correct 6 ms 8284 KB n=2000
65 Correct 6 ms 8284 KB n=2000
66 Correct 7 ms 8540 KB n=2000
67 Correct 7 ms 8280 KB n=2000
68 Correct 6 ms 8284 KB n=2000
69 Correct 5 ms 8280 KB n=2000
70 Correct 5 ms 8336 KB n=2000
71 Correct 5 ms 8284 KB n=2000
72 Correct 5 ms 8280 KB n=2000
73 Correct 5 ms 8284 KB n=2000
74 Correct 5 ms 8284 KB n=1844
75 Correct 5 ms 8284 KB n=2000
76 Correct 6 ms 8284 KB n=2000
77 Correct 6 ms 8284 KB n=2000
78 Correct 6 ms 8476 KB n=2000
79 Correct 6 ms 8536 KB n=2000
80 Correct 6 ms 8280 KB n=2000
81 Correct 6 ms 8284 KB n=2000
82 Correct 7 ms 8280 KB n=2000
83 Correct 6 ms 8284 KB n=2000
84 Correct 6 ms 8280 KB n=2000
85 Correct 6 ms 8284 KB n=2000
86 Correct 6 ms 8532 KB n=2000
87 Correct 6 ms 8284 KB n=2000
88 Correct 6 ms 8336 KB n=2000
89 Correct 6 ms 8284 KB n=2000
90 Correct 6 ms 8284 KB n=2000
91 Correct 6 ms 8284 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7768 KB n=5
2 Correct 2 ms 7772 KB n=100
3 Correct 2 ms 7768 KB n=100
4 Correct 2 ms 7768 KB n=100
5 Correct 2 ms 7772 KB n=100
6 Correct 2 ms 7768 KB n=100
7 Correct 2 ms 7772 KB n=100
8 Correct 2 ms 7772 KB n=100
9 Correct 2 ms 7772 KB n=100
10 Correct 2 ms 7772 KB n=100
11 Correct 3 ms 7772 KB n=100
12 Correct 2 ms 7768 KB n=100
13 Correct 2 ms 7772 KB n=100
14 Correct 2 ms 7772 KB n=100
15 Correct 2 ms 7772 KB n=100
16 Correct 2 ms 7772 KB n=100
17 Correct 2 ms 7772 KB n=100
18 Correct 3 ms 7772 KB n=100
19 Correct 2 ms 7772 KB n=100
20 Correct 2 ms 7772 KB n=100
21 Correct 2 ms 7772 KB n=100
22 Correct 4 ms 7924 KB n=100
23 Correct 2 ms 7772 KB n=100
24 Correct 3 ms 7772 KB n=100
25 Correct 2 ms 7772 KB n=100
26 Correct 3 ms 7772 KB n=12
27 Correct 2 ms 7768 KB n=100
28 Correct 3 ms 7772 KB n=500
29 Correct 3 ms 7772 KB n=500
30 Correct 3 ms 7772 KB n=500
31 Correct 3 ms 7772 KB n=500
32 Correct 3 ms 7768 KB n=500
33 Correct 3 ms 7768 KB n=500
34 Correct 3 ms 7772 KB n=500
35 Correct 3 ms 7772 KB n=500
36 Correct 2 ms 7772 KB n=500
37 Correct 3 ms 7772 KB n=500
38 Correct 3 ms 7768 KB n=500
39 Correct 3 ms 7828 KB n=500
40 Correct 3 ms 7772 KB n=500
41 Correct 3 ms 7768 KB n=500
42 Correct 3 ms 7772 KB n=500
43 Correct 3 ms 7772 KB n=500
44 Correct 3 ms 7768 KB n=500
45 Correct 3 ms 7772 KB n=500
46 Correct 3 ms 7768 KB n=500
47 Correct 3 ms 7768 KB n=500
48 Correct 3 ms 7772 KB n=500
49 Correct 3 ms 7772 KB n=500
50 Correct 3 ms 7772 KB n=500
51 Correct 3 ms 7768 KB n=500
52 Correct 3 ms 7772 KB n=500
53 Correct 3 ms 7772 KB n=500
54 Correct 3 ms 7772 KB n=500
55 Correct 4 ms 7772 KB n=278
56 Correct 3 ms 7772 KB n=500
57 Correct 3 ms 7772 KB n=500
58 Correct 3 ms 8184 KB n=500
59 Correct 6 ms 8284 KB n=2000
60 Correct 6 ms 8284 KB n=2000
61 Correct 6 ms 8368 KB n=2000
62 Correct 6 ms 8284 KB n=2000
63 Correct 6 ms 8284 KB n=2000
64 Correct 6 ms 8284 KB n=2000
65 Correct 6 ms 8284 KB n=2000
66 Correct 7 ms 8540 KB n=2000
67 Correct 7 ms 8280 KB n=2000
68 Correct 6 ms 8284 KB n=2000
69 Correct 5 ms 8280 KB n=2000
70 Correct 5 ms 8336 KB n=2000
71 Correct 5 ms 8284 KB n=2000
72 Correct 5 ms 8280 KB n=2000
73 Correct 5 ms 8284 KB n=2000
74 Correct 5 ms 8284 KB n=1844
75 Correct 5 ms 8284 KB n=2000
76 Correct 6 ms 8284 KB n=2000
77 Correct 6 ms 8284 KB n=2000
78 Correct 6 ms 8476 KB n=2000
79 Correct 6 ms 8536 KB n=2000
80 Correct 6 ms 8280 KB n=2000
81 Correct 6 ms 8284 KB n=2000
82 Correct 7 ms 8280 KB n=2000
83 Correct 6 ms 8284 KB n=2000
84 Correct 6 ms 8280 KB n=2000
85 Correct 6 ms 8284 KB n=2000
86 Correct 6 ms 8532 KB n=2000
87 Correct 6 ms 8284 KB n=2000
88 Correct 6 ms 8336 KB n=2000
89 Correct 6 ms 8284 KB n=2000
90 Correct 6 ms 8284 KB n=2000
91 Correct 6 ms 8284 KB n=2000
92 Correct 757 ms 74064 KB n=200000
93 Correct 1117 ms 75648 KB n=200000
94 Correct 1100 ms 75476 KB n=200000
95 Correct 692 ms 75216 KB n=200000
96 Correct 715 ms 75460 KB n=200000
97 Correct 1070 ms 75700 KB n=200000
98 Correct 697 ms 75204 KB n=200000
99 Correct 882 ms 75392 KB n=200000
100 Correct 720 ms 75308 KB n=200000
101 Correct 1018 ms 75592 KB n=200000
102 Correct 437 ms 76484 KB n=200000
103 Correct 458 ms 76368 KB n=200000
104 Correct 451 ms 76320 KB n=200000
105 Correct 447 ms 76880 KB n=200000
106 Correct 470 ms 76720 KB n=200000
107 Correct 474 ms 76816 KB n=200000
108 Correct 781 ms 75368 KB n=200000
109 Correct 798 ms 75292 KB n=200000
110 Correct 803 ms 75156 KB n=200000
111 Correct 786 ms 74876 KB n=200000
112 Correct 1060 ms 75664 KB n=200000
113 Correct 1124 ms 75872 KB n=200000
114 Correct 807 ms 74776 KB n=200000
115 Correct 1086 ms 75844 KB n=200000
116 Correct 725 ms 75416 KB n=200000
117 Correct 1087 ms 75316 KB n=200000
118 Correct 1092 ms 75660 KB n=200000
119 Correct 686 ms 75404 KB n=200000
120 Correct 988 ms 74364 KB n=200000
121 Correct 1020 ms 74312 KB n=200000
122 Correct 997 ms 74816 KB n=200000
123 Correct 486 ms 76712 KB n=200000
124 Correct 173 ms 24148 KB n=25264