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답안 #787080

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
787080 2023-07-18T18:52:13 Z fuad27 Tourism (JOI23_tourism) C++17
100 / 100
 806 ms 26124 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
using namespace std;
const int N=1e5+10;
int n, m, q, sz[N];
vector<int> g[N];
int id[N], tp[N], par[N], depth[N];
struct node {
  int l, r;
  int val;
  bool operator<(const node& B) const {
    return l<B.l;
  }
};
int fen[N+10];
void upd(int at, int val) {
  at++;
  while(at<N) {
    fen[at]+=val;
    at+=at&(-at);
  }
}
int que(int at) {
  int res=0;
  at++;
  while(at) {
    res+=fen[at];
    at-=at&(-at);
  }
  return res;
}
set<node> s;
auto split(int x) {
  auto it=--s.upper_bound(node({x,0,0}));
  if(it->l==x)return it;
  if(it->r<x)return s.end();
  int l=it->l, r=it->r, val = it->val;
  s.erase(it);
  s.insert({l, x-1, val});
  return s.insert({x, r, val}).first;
}
void update(int l, int r, int val) {
  auto it2=split(r+1), it1=split(l);
  for(auto it=it1;it!=it2;it++) {
    upd(it->val, -(it->r-it->l+1));
  }
  s.erase(it1, it2);
  s.insert({l, r, val});
  upd(val, r-l+1);
}
int C=1;
void dfs_sz(int at, int p) {
  sz[at]=1;
  for(int to:g[at]) {
    if(to==p)continue;
    depth[to]=depth[at]+1;
    dfs_sz(to,at);
    sz[at]+=sz[to];
  }
}
void dfs(int at, int p, int top) {
  id[at]=C++;
  tp[at]=top;
  par[at]=p;
  int hv_child=-1, hv_sz=-1;
  for(int to:g[at]) {
    if(to==p)continue;
    if(sz[to]>hv_sz) {
      hv_child=to;
      hv_sz=sz[to];
    }
  }
  if(hv_child==-1)return;
  dfs(hv_child, at, top);
  for(int to:g[at]) {
    if(to==p or to==hv_child)continue;
    dfs(to, at, to);
  }
}
void queryy(int x, int y, int val) {
  while(tp[x]!=tp[y]) {
    if(depth[tp[x]]<depth[tp[y]])swap(x,y);
    update(id[tp[x]], id[x], val);
    x=par[tp[x]];
  }
  if(depth[x]>depth[y])swap(x,y);
  update(id[x], id[y], val);
}
int main () {
  cin.tie(0)->sync_with_stdio(0);
  cin >> n >> m >> q;
  for(int i = 1;i<n;i++) {
    int A, B;
    cin >> A >> B;
    g[A].push_back(B);
    g[B].push_back(A);
  }
  for(int i = 0;i<n+10;i++)s.insert({i,0,0});
  upd(0, n+10);
  dfs_sz(1,1);
  dfs(1,1,1);
  int c[m+1];
  for(int i = 1;i<=m;i++)cin >> c[i];
  vector<pair<int,int>> quee[m+1];
  int ress[q];
  for(int i = 0;i<q;i++) {
    int l, r;
    cin >> l >> r;
    quee[r].push_back({l, i});
  }
  for(int i = 1;i<=m;i++) {
    if(i>1)queryy(c[i], c[i-1], i);
    for(auto j:quee[i]) {
      if(j.first!=i) {
        ress[j.second]=que(m+10)-que(j.first);
      }
      else ress[j.second]=1;
    }
  }
  for(int i = 0;i<q;i++)cout << ress[i] << "\n";
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 3 ms 2772 KB Output is correct
11 Correct 2 ms 2772 KB Output is correct
12 Correct 2 ms 2688 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct
14 Correct 2 ms 2772 KB Output is correct
15 Correct 2 ms 2772 KB Output is correct
16 Correct 2 ms 2688 KB Output is correct
17 Correct 2 ms 2772 KB Output is correct
18 Correct 2 ms 2772 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 2 ms 2772 KB Output is correct
21 Correct 2 ms 2772 KB Output is correct
22 Correct 2 ms 2772 KB Output is correct
23 Correct 2 ms 2772 KB Output is correct
24 Correct 2 ms 2772 KB Output is correct
25 Correct 2 ms 2772 KB Output is correct
26 Correct 2 ms 2772 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 2 ms 2772 KB Output is correct
29 Correct 2 ms 2772 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 3 ms 2772 KB Output is correct
11 Correct 2 ms 2772 KB Output is correct
12 Correct 2 ms 2688 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct
14 Correct 2 ms 2772 KB Output is correct
15 Correct 2 ms 2772 KB Output is correct
16 Correct 2 ms 2688 KB Output is correct
17 Correct 2 ms 2772 KB Output is correct
18 Correct 2 ms 2772 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 2 ms 2772 KB Output is correct
21 Correct 2 ms 2772 KB Output is correct
22 Correct 2 ms 2772 KB Output is correct
23 Correct 2 ms 2772 KB Output is correct
24 Correct 2 ms 2772 KB Output is correct
25 Correct 2 ms 2772 KB Output is correct
26 Correct 2 ms 2772 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 2 ms 2772 KB Output is correct
29 Correct 2 ms 2772 KB Output is correct
30 Correct 5 ms 2948 KB Output is correct
31 Correct 5 ms 2900 KB Output is correct
32 Correct 7 ms 3076 KB Output is correct
33 Correct 8 ms 3116 KB Output is correct
34 Correct 7 ms 3028 KB Output is correct
35 Correct 6 ms 3072 KB Output is correct
36 Correct 6 ms 3088 KB Output is correct
37 Correct 6 ms 3028 KB Output is correct
38 Correct 4 ms 3028 KB Output is correct
39 Correct 4 ms 3028 KB Output is correct
40 Correct 4 ms 3028 KB Output is correct
41 Correct 4 ms 3156 KB Output is correct
42 Correct 4 ms 3144 KB Output is correct
43 Correct 4 ms 3076 KB Output is correct
44 Correct 4 ms 3028 KB Output is correct
45 Correct 5 ms 3080 KB Output is correct
46 Correct 4 ms 3092 KB Output is correct
47 Correct 5 ms 3028 KB Output is correct
48 Correct 5 ms 3028 KB Output is correct
49 Correct 4 ms 3028 KB Output is correct
50 Correct 4 ms 3076 KB Output is correct
51 Correct 5 ms 3028 KB Output is correct
52 Correct 4 ms 3028 KB Output is correct
53 Correct 4 ms 3028 KB Output is correct
54 Correct 4 ms 3028 KB Output is correct
55 Correct 4 ms 3080 KB Output is correct
56 Correct 2 ms 2772 KB Output is correct
57 Correct 3 ms 2948 KB Output is correct
58 Correct 6 ms 3080 KB Output is correct

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2828 KB Output is correct
4 Correct 96 ms 16784 KB Output is correct
5 Correct 89 ms 20764 KB Output is correct
6 Correct 116 ms 22784 KB Output is correct
7 Correct 121 ms 26080 KB Output is correct
8 Correct 140 ms 26076 KB Output is correct
9 Correct 126 ms 26048 KB Output is correct
10 Correct 122 ms 26124 KB Output is correct
11 Correct 125 ms 26108 KB Output is correct
12 Correct 147 ms 25204 KB Output is correct
13 Correct 134 ms 25224 KB Output is correct
14 Correct 137 ms 25148 KB Output is correct
15 Correct 56 ms 22984 KB Output is correct
16 Correct 119 ms 25848 KB Output is correct
17 Correct 42 ms 9804 KB Output is correct

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 222 ms 10620 KB Output is correct
3 Correct 351 ms 12280 KB Output is correct
4 Correct 296 ms 13932 KB Output is correct
5 Correct 475 ms 18928 KB Output is correct
6 Correct 498 ms 19016 KB Output is correct
7 Correct 489 ms 18944 KB Output is correct
8 Correct 473 ms 18968 KB Output is correct
9 Correct 486 ms 19016 KB Output is correct
10 Correct 472 ms 18932 KB Output is correct
11 Correct 501 ms 18960 KB Output is correct
12 Correct 461 ms 19072 KB Output is correct
13 Correct 484 ms 19424 KB Output is correct
14 Correct 520 ms 20352 KB Output is correct
15 Correct 501 ms 23892 KB Output is correct
16 Correct 474 ms 19416 KB Output is correct
17 Correct 547 ms 19400 KB Output is correct
18 Correct 449 ms 19472 KB Output is correct
19 Correct 304 ms 18764 KB Output is correct
20 Correct 293 ms 18816 KB Output is correct
21 Correct 311 ms 18856 KB Output is correct
22 Correct 308 ms 18856 KB Output is correct
23 Correct 297 ms 18764 KB Output is correct
24 Correct 297 ms 18852 KB Output is correct
25 Correct 306 ms 18768 KB Output is correct
26 Correct 300 ms 18796 KB Output is correct
27 Correct 301 ms 18980 KB Output is correct
28 Correct 324 ms 18904 KB Output is correct
29 Correct 306 ms 18892 KB Output is correct
30 Correct 322 ms 19068 KB Output is correct
31 Correct 301 ms 19304 KB Output is correct
32 Correct 305 ms 19844 KB Output is correct
33 Correct 335 ms 21364 KB Output is correct
34 Correct 310 ms 23620 KB Output is correct

Subtask #5
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 3 ms 2820 KB Output is correct
4 Correct 571 ms 16788 KB Output is correct
5 Correct 647 ms 16964 KB Output is correct
6 Correct 725 ms 20920 KB Output is correct
7 Correct 781 ms 22920 KB Output is correct
8 Correct 771 ms 22972 KB Output is correct
9 Correct 783 ms 22860 KB Output is correct
10 Correct 806 ms 22888 KB Output is correct
11 Correct 779 ms 22880 KB Output is correct
12 Correct 792 ms 22936 KB Output is correct
13 Correct 781 ms 22948 KB Output is correct
14 Correct 42 ms 9676 KB Output is correct

Subtask #6
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2644 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 2 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2772 KB Output is correct
9 Correct 2 ms 2772 KB Output is correct
10 Correct 3 ms 2772 KB Output is correct
11 Correct 2 ms 2772 KB Output is correct
12 Correct 2 ms 2688 KB Output is correct
13 Correct 2 ms 2772 KB Output is correct
14 Correct 2 ms 2772 KB Output is correct
15 Correct 2 ms 2772 KB Output is correct
16 Correct 2 ms 2688 KB Output is correct
17 Correct 2 ms 2772 KB Output is correct
18 Correct 2 ms 2772 KB Output is correct
19 Correct 2 ms 2772 KB Output is correct
20 Correct 2 ms 2772 KB Output is correct
21 Correct 2 ms 2772 KB Output is correct
22 Correct 2 ms 2772 KB Output is correct
23 Correct 2 ms 2772 KB Output is correct
24 Correct 2 ms 2772 KB Output is correct
25 Correct 2 ms 2772 KB Output is correct
26 Correct 2 ms 2772 KB Output is correct
27 Correct 2 ms 2644 KB Output is correct
28 Correct 2 ms 2772 KB Output is correct
29 Correct 2 ms 2772 KB Output is correct
30 Correct 5 ms 2948 KB Output is correct
31 Correct 5 ms 2900 KB Output is correct
32 Correct 7 ms 3076 KB Output is correct
33 Correct 8 ms 3116 KB Output is correct
34 Correct 7 ms 3028 KB Output is correct
35 Correct 6 ms 3072 KB Output is correct
36 Correct 6 ms 3088 KB Output is correct
37 Correct 6 ms 3028 KB Output is correct
38 Correct 4 ms 3028 KB Output is correct
39 Correct 4 ms 3028 KB Output is correct
40 Correct 4 ms 3028 KB Output is correct
41 Correct 4 ms 3156 KB Output is correct
42 Correct 4 ms 3144 KB Output is correct
43 Correct 4 ms 3076 KB Output is correct
44 Correct 4 ms 3028 KB Output is correct
45 Correct 5 ms 3080 KB Output is correct
46 Correct 4 ms 3092 KB Output is correct
47 Correct 5 ms 3028 KB Output is correct
48 Correct 5 ms 3028 KB Output is correct
49 Correct 4 ms 3028 KB Output is correct
50 Correct 4 ms 3076 KB Output is correct
51 Correct 5 ms 3028 KB Output is correct
52 Correct 4 ms 3028 KB Output is correct
53 Correct 4 ms 3028 KB Output is correct
54 Correct 4 ms 3028 KB Output is correct
55 Correct 4 ms 3080 KB Output is correct
56 Correct 2 ms 2772 KB Output is correct
57 Correct 3 ms 2948 KB Output is correct
58 Correct 6 ms 3080 KB Output is correct
59 Correct 1 ms 2644 KB Output is correct
60 Correct 1 ms 2644 KB Output is correct
61 Correct 2 ms 2828 KB Output is correct
62 Correct 96 ms 16784 KB Output is correct
63 Correct 89 ms 20764 KB Output is correct
64 Correct 116 ms 22784 KB Output is correct
65 Correct 121 ms 26080 KB Output is correct
66 Correct 140 ms 26076 KB Output is correct
67 Correct 126 ms 26048 KB Output is correct
68 Correct 122 ms 26124 KB Output is correct
69 Correct 125 ms 26108 KB Output is correct
70 Correct 147 ms 25204 KB Output is correct
71 Correct 134 ms 25224 KB Output is correct
72 Correct 137 ms 25148 KB Output is correct
73 Correct 56 ms 22984 KB Output is correct
74 Correct 119 ms 25848 KB Output is correct
75 Correct 42 ms 9804 KB Output is correct
76 Correct 1 ms 2644 KB Output is correct
77 Correct 222 ms 10620 KB Output is correct
78 Correct 351 ms 12280 KB Output is correct
79 Correct 296 ms 13932 KB Output is correct
80 Correct 475 ms 18928 KB Output is correct
81 Correct 498 ms 19016 KB Output is correct
82 Correct 489 ms 18944 KB Output is correct
83 Correct 473 ms 18968 KB Output is correct
84 Correct 486 ms 19016 KB Output is correct
85 Correct 472 ms 18932 KB Output is correct
86 Correct 501 ms 18960 KB Output is correct
87 Correct 461 ms 19072 KB Output is correct
88 Correct 484 ms 19424 KB Output is correct
89 Correct 520 ms 20352 KB Output is correct
90 Correct 501 ms 23892 KB Output is correct
91 Correct 474 ms 19416 KB Output is correct
92 Correct 547 ms 19400 KB Output is correct
93 Correct 449 ms 19472 KB Output is correct
94 Correct 304 ms 18764 KB Output is correct
95 Correct 293 ms 18816 KB Output is correct
96 Correct 311 ms 18856 KB Output is correct
97 Correct 308 ms 18856 KB Output is correct
98 Correct 297 ms 18764 KB Output is correct
99 Correct 297 ms 18852 KB Output is correct
100 Correct 306 ms 18768 KB Output is correct
101 Correct 300 ms 18796 KB Output is correct
102 Correct 301 ms 18980 KB Output is correct
103 Correct 324 ms 18904 KB Output is correct
104 Correct 306 ms 18892 KB Output is correct
105 Correct 322 ms 19068 KB Output is correct
106 Correct 301 ms 19304 KB Output is correct
107 Correct 305 ms 19844 KB Output is correct
108 Correct 335 ms 21364 KB Output is correct
109 Correct 310 ms 23620 KB Output is correct
110 Correct 1 ms 2644 KB Output is correct
111 Correct 1 ms 2644 KB Output is correct
112 Correct 3 ms 2820 KB Output is correct
113 Correct 571 ms 16788 KB Output is correct
114 Correct 647 ms 16964 KB Output is correct
115 Correct 725 ms 20920 KB Output is correct
116 Correct 781 ms 22920 KB Output is correct
117 Correct 771 ms 22972 KB Output is correct
118 Correct 783 ms 22860 KB Output is correct
119 Correct 806 ms 22888 KB Output is correct
120 Correct 779 ms 22880 KB Output is correct
121 Correct 792 ms 22936 KB Output is correct
122 Correct 781 ms 22948 KB Output is correct
123 Correct 42 ms 9676 KB Output is correct
124 Correct 433 ms 22216 KB Output is correct
125 Correct 342 ms 19636 KB Output is correct
126 Correct 563 ms 22972 KB Output is correct
127 Correct 565 ms 22968 KB Output is correct
128 Correct 515 ms 23096 KB Output is correct
129 Correct 528 ms 23092 KB Output is correct
130 Correct 508 ms 23048 KB Output is correct
131 Correct 134 ms 25164 KB Output is correct
132 Correct 129 ms 26024 KB Output is correct
133 Correct 151 ms 22988 KB Output is correct
134 Correct 325 ms 22868 KB Output is correct
135 Correct 339 ms 22980 KB Output is correct
136 Correct 330 ms 22984 KB Output is correct
137 Correct 199 ms 23360 KB Output is correct
138 Correct 210 ms 23300 KB Output is correct
139 Correct 203 ms 23292 KB Output is correct
140 Correct 197 ms 23360 KB Output is correct
141 Correct 195 ms 23308 KB Output is correct
142 Correct 209 ms 23312 KB Output is correct
143 Correct 79 ms 17140 KB Output is correct
144 Correct 542 ms 22704 KB Output is correct