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답안 #1030137

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1030137 2024-07-21T21:06:37 Z pera Tourism (JOI23_tourism) C++17
100 / 100
 574 ms 23120 KB 
#include<bits/stdc++.h>
using namespace std;
const int N = 1e5 + 1;
int n , m , q , T = 0 , t[N] , C[N] , id[N] , ans[N] , sz[N] , d[N] , up[N] , top[N];
vector<int> g[N];
vector<pair<int , int>> query[N];
set<tuple<int , int , int>> S;
void update(int u , int x){
   while(u < N){
      t[u] += x;
      u += u&-u;
   }
}
int get(int u){
   int sum = 0;
   while(u > 0){
      sum += t[u];
      u -= u&-u;
   }
   return sum;
}
void dfs(int u , int p = 1){
   if(u != 1){
      g[u].erase(find(g[u].begin() , g[u].end() , p));
   }
   up[u] = p;
   d[u] = d[p] + 1;
   for(int x = 0;x < (int)g[u].size();x ++){
      dfs(g[u][x] , u);
      sz[u] += sz[g[u][x]];
      if(sz[g[u][0]] < sz[g[u][x]]){
         swap(g[u][0] , g[u][x]);
      }
   }
   ++sz[u];
}
void hld(int u){
   id[u] = ++T;
   for(int x = 0;x < (int)g[u].size();x ++){
      top[g[u][x]] = (x == 0 ? top[u] : g[u][x]);
      hld(g[u][x]);
   }
}
void upd(int l , int r , int x){
   //cout << "make " << l << " " << r << " " << x << endl;
   while(true){
      auto it = S.lower_bound({l , -1 , -1});
      if(it == S.end() || get<0>(*it) < l || get<1>(*it) > r){
         break;
      }
      int L = get<1>(*it) , R = get<0>(*it) , v = get<2>(*it);
      //cout << "xx " << L << " " << R << " " << v << endl;
      S.erase(it);
      update(v , -(min(r , R) - max(L , l) + 1));
      if(L < l){
         S.insert({l - 1 , L , v});
      }
      if(r < R){
         S.insert({R , r + 1 , v});
      }
   }
   S.insert({r , l , x});
   update(x , r - l + 1);
}
void UPD(int u , int v , int x){
   while(top[u] != top[v]){
      //cout << u << " da " << v << endl;
      if(d[top[u]] < d[top[v]]){
         swap(u , v);
      }
      upd(id[top[u]] , id[u] , x);
      u = up[top[u]];
   }
  //cout << u << " das " << v << endl;
   if(d[u] > d[v]){
      swap(u , v);
   }
   upd(id[u] , id[v] , x);
}
int main(){
   ios_base::sync_with_stdio(false);
   cout.tie(0);
   cin.tie(0);
   cin >> n >> m >> q;
   for(int i = 1;i < n;i ++){
      int u , v;
      cin >> u >> v;
      g[u].push_back(v);
      g[v].push_back(u);
   }
   dfs(1);
   top[1] = 1;
   hld(1);
   for(int i = 1;i <= m;i ++){
      cin >> C[i];
   }
   for(int i = 1;i <= q;i ++){
      int l , r;
      cin >> l >> r;
      query[r].push_back({l , i});
   }
   for(int i = 1;i <= m;i ++){
      if(i > 1){
         //cout << C[i - 1] << " -> " << C[i] << endl;
         UPD(C[i - 1] , C[i] , i - 1);
      }
      upd(id[C[i]] , id[C[i]] , i);
      for(auto [l , id] : query[i]){
         ans[id] = get(N - 1) - get(l - 1);
      }
   }
   for(int i = 1;i <= q;i ++){
      cout << ans[i] << " ";
   }
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5212 KB Output is correct
2 Correct 2 ms 5064 KB Output is correct
3 Correct 2 ms 5212 KB Output is correct
4 Correct 2 ms 5212 KB Output is correct
5 Correct 2 ms 5164 KB Output is correct
6 Correct 2 ms 5212 KB Output is correct
7 Correct 2 ms 5212 KB Output is correct
8 Correct 2 ms 5164 KB Output is correct
9 Correct 2 ms 5212 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 2 ms 5212 KB Output is correct
12 Correct 2 ms 5212 KB Output is correct
13 Correct 2 ms 5240 KB Output is correct
14 Correct 3 ms 5212 KB Output is correct
15 Correct 2 ms 5216 KB Output is correct
16 Correct 2 ms 5212 KB Output is correct
17 Correct 3 ms 5216 KB Output is correct
18 Correct 2 ms 5212 KB Output is correct
19 Correct 2 ms 5236 KB Output is correct
20 Correct 3 ms 5212 KB Output is correct
21 Correct 2 ms 5212 KB Output is correct
22 Correct 2 ms 5208 KB Output is correct
23 Correct 2 ms 5212 KB Output is correct
24 Correct 2 ms 5212 KB Output is correct
25 Correct 2 ms 5212 KB Output is correct
26 Correct 3 ms 5212 KB Output is correct
27 Correct 2 ms 5212 KB Output is correct
28 Correct 2 ms 5208 KB Output is correct
29 Correct 2 ms 5212 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5212 KB Output is correct
2 Correct 2 ms 5064 KB Output is correct
3 Correct 2 ms 5212 KB Output is correct
4 Correct 2 ms 5212 KB Output is correct
5 Correct 2 ms 5164 KB Output is correct
6 Correct 2 ms 5212 KB Output is correct
7 Correct 2 ms 5212 KB Output is correct
8 Correct 2 ms 5164 KB Output is correct
9 Correct 2 ms 5212 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 2 ms 5212 KB Output is correct
12 Correct 2 ms 5212 KB Output is correct
13 Correct 2 ms 5240 KB Output is correct
14 Correct 3 ms 5212 KB Output is correct
15 Correct 2 ms 5216 KB Output is correct
16 Correct 2 ms 5212 KB Output is correct
17 Correct 3 ms 5216 KB Output is correct
18 Correct 2 ms 5212 KB Output is correct
19 Correct 2 ms 5236 KB Output is correct
20 Correct 3 ms 5212 KB Output is correct
21 Correct 2 ms 5212 KB Output is correct
22 Correct 2 ms 5208 KB Output is correct
23 Correct 2 ms 5212 KB Output is correct
24 Correct 2 ms 5212 KB Output is correct
25 Correct 2 ms 5212 KB Output is correct
26 Correct 3 ms 5212 KB Output is correct
27 Correct 2 ms 5212 KB Output is correct
28 Correct 2 ms 5208 KB Output is correct
29 Correct 2 ms 5212 KB Output is correct
30 Correct 5 ms 5172 KB Output is correct
31 Correct 5 ms 5412 KB Output is correct
32 Correct 6 ms 5468 KB Output is correct
33 Correct 6 ms 5488 KB Output is correct
34 Correct 6 ms 5268 KB Output is correct
35 Correct 6 ms 5440 KB Output is correct
36 Correct 6 ms 5468 KB Output is correct
37 Correct 8 ms 5496 KB Output is correct
38 Correct 4 ms 5468 KB Output is correct
39 Correct 4 ms 5468 KB Output is correct
40 Correct 4 ms 5464 KB Output is correct
41 Correct 3 ms 5508 KB Output is correct
42 Correct 3 ms 5468 KB Output is correct
43 Correct 3 ms 5468 KB Output is correct
44 Correct 4 ms 5412 KB Output is correct
45 Correct 5 ms 5208 KB Output is correct
46 Correct 5 ms 5464 KB Output is correct
47 Correct 4 ms 5212 KB Output is correct
48 Correct 5 ms 5212 KB Output is correct
49 Correct 4 ms 5468 KB Output is correct
50 Correct 4 ms 5468 KB Output is correct
51 Correct 4 ms 5464 KB Output is correct
52 Correct 4 ms 5428 KB Output is correct
53 Correct 4 ms 5468 KB Output is correct
54 Correct 5 ms 5468 KB Output is correct
55 Correct 4 ms 5468 KB Output is correct
56 Correct 3 ms 5212 KB Output is correct
57 Correct 3 ms 5180 KB Output is correct
58 Correct 6 ms 5468 KB Output is correct

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5212 KB Output is correct
2 Correct 2 ms 5212 KB Output is correct
3 Correct 3 ms 5208 KB Output is correct
4 Correct 75 ms 16464 KB Output is correct
5 Correct 60 ms 18516 KB Output is correct
6 Correct 75 ms 20052 KB Output is correct
7 Correct 91 ms 23084 KB Output is correct
8 Correct 95 ms 23100 KB Output is correct
9 Correct 91 ms 22864 KB Output is correct
10 Correct 93 ms 23120 KB Output is correct
11 Correct 97 ms 23048 KB Output is correct
12 Correct 92 ms 22424 KB Output is correct
13 Correct 109 ms 22440 KB Output is correct
14 Correct 96 ms 22520 KB Output is correct
15 Correct 34 ms 19532 KB Output is correct
16 Correct 87 ms 22608 KB Output is correct
17 Correct 37 ms 9808 KB Output is correct

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5212 KB Output is correct
2 Correct 180 ms 11196 KB Output is correct
3 Correct 272 ms 12368 KB Output is correct
4 Correct 216 ms 12516 KB Output is correct
5 Correct 351 ms 15952 KB Output is correct
6 Correct 348 ms 16004 KB Output is correct
7 Correct 319 ms 15956 KB Output is correct
8 Correct 354 ms 15952 KB Output is correct
9 Correct 344 ms 15956 KB Output is correct
10 Correct 340 ms 16016 KB Output is correct
11 Correct 340 ms 16212 KB Output is correct
12 Correct 347 ms 16156 KB Output is correct
13 Correct 362 ms 16440 KB Output is correct
14 Correct 330 ms 17488 KB Output is correct
15 Correct 371 ms 20820 KB Output is correct
16 Correct 333 ms 16468 KB Output is correct
17 Correct 353 ms 16700 KB Output is correct
18 Correct 337 ms 16468 KB Output is correct
19 Correct 223 ms 12924 KB Output is correct
20 Correct 222 ms 12968 KB Output is correct
21 Correct 242 ms 12988 KB Output is correct
22 Correct 238 ms 12880 KB Output is correct
23 Correct 215 ms 12840 KB Output is correct
24 Correct 213 ms 12884 KB Output is correct
25 Correct 250 ms 13336 KB Output is correct
26 Correct 216 ms 12884 KB Output is correct
27 Correct 208 ms 13136 KB Output is correct
28 Correct 223 ms 13136 KB Output is correct
29 Correct 205 ms 13136 KB Output is correct
30 Correct 222 ms 13140 KB Output is correct
31 Correct 223 ms 13384 KB Output is correct
32 Correct 225 ms 14112 KB Output is correct
33 Correct 237 ms 15440 KB Output is correct
34 Correct 235 ms 18004 KB Output is correct

Subtask #5
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5212 KB Output is correct
2 Correct 2 ms 5212 KB Output is correct
3 Correct 3 ms 5212 KB Output is correct
4 Correct 428 ms 16156 KB Output is correct
5 Correct 440 ms 16212 KB Output is correct
6 Correct 528 ms 18992 KB Output is correct
7 Correct 555 ms 20656 KB Output is correct
8 Correct 574 ms 20560 KB Output is correct
9 Correct 531 ms 20564 KB Output is correct
10 Correct 536 ms 20732 KB Output is correct
11 Correct 548 ms 20560 KB Output is correct
12 Correct 535 ms 20560 KB Output is correct
13 Correct 562 ms 20756 KB Output is correct
14 Correct 41 ms 9812 KB Output is correct

Subtask #6
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5212 KB Output is correct
2 Correct 2 ms 5064 KB Output is correct
3 Correct 2 ms 5212 KB Output is correct
4 Correct 2 ms 5212 KB Output is correct
5 Correct 2 ms 5164 KB Output is correct
6 Correct 2 ms 5212 KB Output is correct
7 Correct 2 ms 5212 KB Output is correct
8 Correct 2 ms 5164 KB Output is correct
9 Correct 2 ms 5212 KB Output is correct
10 Correct 3 ms 5204 KB Output is correct
11 Correct 2 ms 5212 KB Output is correct
12 Correct 2 ms 5212 KB Output is correct
13 Correct 2 ms 5240 KB Output is correct
14 Correct 3 ms 5212 KB Output is correct
15 Correct 2 ms 5216 KB Output is correct
16 Correct 2 ms 5212 KB Output is correct
17 Correct 3 ms 5216 KB Output is correct
18 Correct 2 ms 5212 KB Output is correct
19 Correct 2 ms 5236 KB Output is correct
20 Correct 3 ms 5212 KB Output is correct
21 Correct 2 ms 5212 KB Output is correct
22 Correct 2 ms 5208 KB Output is correct
23 Correct 2 ms 5212 KB Output is correct
24 Correct 2 ms 5212 KB Output is correct
25 Correct 2 ms 5212 KB Output is correct
26 Correct 3 ms 5212 KB Output is correct
27 Correct 2 ms 5212 KB Output is correct
28 Correct 2 ms 5208 KB Output is correct
29 Correct 2 ms 5212 KB Output is correct
30 Correct 5 ms 5172 KB Output is correct
31 Correct 5 ms 5412 KB Output is correct
32 Correct 6 ms 5468 KB Output is correct
33 Correct 6 ms 5488 KB Output is correct
34 Correct 6 ms 5268 KB Output is correct
35 Correct 6 ms 5440 KB Output is correct
36 Correct 6 ms 5468 KB Output is correct
37 Correct 8 ms 5496 KB Output is correct
38 Correct 4 ms 5468 KB Output is correct
39 Correct 4 ms 5468 KB Output is correct
40 Correct 4 ms 5464 KB Output is correct
41 Correct 3 ms 5508 KB Output is correct
42 Correct 3 ms 5468 KB Output is correct
43 Correct 3 ms 5468 KB Output is correct
44 Correct 4 ms 5412 KB Output is correct
45 Correct 5 ms 5208 KB Output is correct
46 Correct 5 ms 5464 KB Output is correct
47 Correct 4 ms 5212 KB Output is correct
48 Correct 5 ms 5212 KB Output is correct
49 Correct 4 ms 5468 KB Output is correct
50 Correct 4 ms 5468 KB Output is correct
51 Correct 4 ms 5464 KB Output is correct
52 Correct 4 ms 5428 KB Output is correct
53 Correct 4 ms 5468 KB Output is correct
54 Correct 5 ms 5468 KB Output is correct
55 Correct 4 ms 5468 KB Output is correct
56 Correct 3 ms 5212 KB Output is correct
57 Correct 3 ms 5180 KB Output is correct
58 Correct 6 ms 5468 KB Output is correct
59 Correct 2 ms 5212 KB Output is correct
60 Correct 2 ms 5212 KB Output is correct
61 Correct 3 ms 5208 KB Output is correct
62 Correct 75 ms 16464 KB Output is correct
63 Correct 60 ms 18516 KB Output is correct
64 Correct 75 ms 20052 KB Output is correct
65 Correct 91 ms 23084 KB Output is correct
66 Correct 95 ms 23100 KB Output is correct
67 Correct 91 ms 22864 KB Output is correct
68 Correct 93 ms 23120 KB Output is correct
69 Correct 97 ms 23048 KB Output is correct
70 Correct 92 ms 22424 KB Output is correct
71 Correct 109 ms 22440 KB Output is correct
72 Correct 96 ms 22520 KB Output is correct
73 Correct 34 ms 19532 KB Output is correct
74 Correct 87 ms 22608 KB Output is correct
75 Correct 37 ms 9808 KB Output is correct
76 Correct 2 ms 5212 KB Output is correct
77 Correct 180 ms 11196 KB Output is correct
78 Correct 272 ms 12368 KB Output is correct
79 Correct 216 ms 12516 KB Output is correct
80 Correct 351 ms 15952 KB Output is correct
81 Correct 348 ms 16004 KB Output is correct
82 Correct 319 ms 15956 KB Output is correct
83 Correct 354 ms 15952 KB Output is correct
84 Correct 344 ms 15956 KB Output is correct
85 Correct 340 ms 16016 KB Output is correct
86 Correct 340 ms 16212 KB Output is correct
87 Correct 347 ms 16156 KB Output is correct
88 Correct 362 ms 16440 KB Output is correct
89 Correct 330 ms 17488 KB Output is correct
90 Correct 371 ms 20820 KB Output is correct
91 Correct 333 ms 16468 KB Output is correct
92 Correct 353 ms 16700 KB Output is correct
93 Correct 337 ms 16468 KB Output is correct
94 Correct 223 ms 12924 KB Output is correct
95 Correct 222 ms 12968 KB Output is correct
96 Correct 242 ms 12988 KB Output is correct
97 Correct 238 ms 12880 KB Output is correct
98 Correct 215 ms 12840 KB Output is correct
99 Correct 213 ms 12884 KB Output is correct
100 Correct 250 ms 13336 KB Output is correct
101 Correct 216 ms 12884 KB Output is correct
102 Correct 208 ms 13136 KB Output is correct
103 Correct 223 ms 13136 KB Output is correct
104 Correct 205 ms 13136 KB Output is correct
105 Correct 222 ms 13140 KB Output is correct
106 Correct 223 ms 13384 KB Output is correct
107 Correct 225 ms 14112 KB Output is correct
108 Correct 237 ms 15440 KB Output is correct
109 Correct 235 ms 18004 KB Output is correct
110 Correct 2 ms 5212 KB Output is correct
111 Correct 2 ms 5212 KB Output is correct
112 Correct 3 ms 5212 KB Output is correct
113 Correct 428 ms 16156 KB Output is correct
114 Correct 440 ms 16212 KB Output is correct
115 Correct 528 ms 18992 KB Output is correct
116 Correct 555 ms 20656 KB Output is correct
117 Correct 574 ms 20560 KB Output is correct
118 Correct 531 ms 20564 KB Output is correct
119 Correct 536 ms 20732 KB Output is correct
120 Correct 548 ms 20560 KB Output is correct
121 Correct 535 ms 20560 KB Output is correct
122 Correct 562 ms 20756 KB Output is correct
123 Correct 41 ms 9812 KB Output is correct
124 Correct 307 ms 19544 KB Output is correct
125 Correct 238 ms 17236 KB Output is correct
126 Correct 361 ms 20304 KB Output is correct
127 Correct 393 ms 20216 KB Output is correct
128 Correct 346 ms 20048 KB Output is correct
129 Correct 394 ms 20068 KB Output is correct
130 Correct 386 ms 20304 KB Output is correct
131 Correct 95 ms 22100 KB Output is correct
132 Correct 99 ms 22868 KB Output is correct
133 Correct 107 ms 19796 KB Output is correct
134 Correct 256 ms 17032 KB Output is correct
135 Correct 252 ms 17236 KB Output is correct
136 Correct 246 ms 17164 KB Output is correct
137 Correct 137 ms 21120 KB Output is correct
138 Correct 137 ms 21196 KB Output is correct
139 Correct 133 ms 21188 KB Output is correct
140 Correct 134 ms 21196 KB Output is correct
141 Correct 139 ms 20996 KB Output is correct
142 Correct 133 ms 21060 KB Output is correct
143 Correct 38 ms 13252 KB Output is correct
144 Correct 356 ms 19912 KB Output is correct