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답안 #556020

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
556020 2022-05-02T07:47:40 Z 600Mihnea Sprinkler (JOI22_sprinkler) C++17
100 / 100
 2429 ms 143436 KB 
#include <bits/stdc++.h>

bool home = 1;

using namespace std;

typedef long long ll;
const int N=200000+7;
const int K=20;
int n;
int q;
int mod;
int h[N];
vector<int> g[N];
pair<int, int> rmq[K][2*N];
int lg[2*N];
int par[N];
int dep[N];
int first_euler[N];
int last_euler[N];
vector<int> la[N];
int top;
int verts[N];
int pos[N];

void build(int a,int p=-1){
  par[a]=p;
  la[dep[a]].push_back(a);
  rmq[0][++top]={dep[a], a};
  first_euler[a]=last_euler[a]=top;
  for(auto&b:g[a]){
    if(b==p) continue;
    dep[b]=1+dep[a];
    build(b,a);
    rmq[0][++top]={dep[a], a};
    last_euler[a]=top;
  }

}

int get_lca(int a,int b){
  if(first_euler[a]>last_euler[b]) swap(a,b);
  a=first_euler[a];
  b=last_euler[b];
  assert(a<=b);
  int k=lg[b-a+1];
  return min(rmq[k][a],rmq[k][b-(1<<k)+1]).second;
}

int get_dist(int a,int b){
  int c=get_lca(a,b);
  return dep[a]+dep[b]-2*dep[c];
}

int cnt_at_dep_before(int dep,int when) {
  int low=0,high=(int)la[dep].size()-1,sol=0;
  while(low<=high){
    int mid=(low+high)/2;
    if(first_euler[la[dep][mid]]<=when){
      sol=mid+1;
      low=mid+1;
    }else{
      high=mid-1;
    }
  }
  return sol;
}

int delta[N];
const int MX=40;

int mlt[N][MX+1];

void mulup(int &a,int b){
  assert(0<=a&&a<mod);
  assert(0<=b&&b<mod);
  a=a*(ll)b%mod;
}

signed main() {
#ifdef ONLINE_JUDGE
  home = 0;
#endif

  for(int i=0;i<N;i++){
    for(int j=0;j<=MX;j++){
      mlt[i][j]=1;
    }
  }

  home=0;

  if (home) {
    freopen("I_am_iron_man", "r", stdin);
  }
  else {
    ios::sync_with_stdio(0); cin.tie(0);
  }

  cin>>n>>mod;

  for (int i=1;i<n;i++) {
    int a, b;
    cin>>a>>b;
    g[a].push_back(b);
    g[b].push_back(a);
  }

  build(1);
  for(int i=2;i<=top;i++) lg[i]=1+lg[i/2];

  for (int k=1;(1<<k)<=top;k++) {
    for(int i=1;i+(1<<k)-1<=top;i++){
      rmq[k][i]=min(rmq[k-1][i],rmq[k-1][i+(1<<(k-1))]);
    }
  }
  {
    top=0;
    for (int d=0;d<=n;d++){
      delta[d]=top;
      for(auto &i:la[d]){
        verts[++top]=i;
        pos[i]=top;
      }
    }
    assert(top==n);
  }
  for (int i=1;i<=n;i++) {
    cin>>h[pos[i]];
  }
  cin>>q;
  while(q--){
    int type;
    cin>>type;
    assert(type==1||type==2);
    if(type==1){
      int x,d,w;
      cin>>x>>d>>w;

      vector<pair<int, int>> prs;

      int vertex=x;

      while (vertex>=1&&d>=0) {
        prs.push_back({vertex, d});
        vertex=par[vertex];
        d--;
      }

      reverse(prs.begin(),prs.end());

      int maxdep=-1;

      for (auto &it:prs){
        vertex=it.first;
        d=it.second;
        for(int h=dep[vertex];h<=dep[vertex]+d;h++){
          if(h>maxdep){
            maxdep=h;
            mulup(mlt[vertex][h-dep[vertex]],w);
          }
        }
      }

    }else{
      int x,xinit;
      cin>>x;
      int sol=h[pos[x]];
      int cur_dist=0;
      while (x>=1&&cur_dist<=MX){
        sol=sol*(ll)mlt[x][cur_dist]%mod;
        x=par[x];
        cur_dist++;
      }

      cout<<sol<<"\n";
    }
  }


}

Compilation message

sprinkler.cpp: In function 'int main()':
sprinkler.cpp:166:13: warning: unused variable 'xinit' [-Wunused-variable]
  166 |       int x,xinit;
      |             ^~~~~
sprinkler.cpp:94:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   94 |     freopen("I_am_iron_man", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 41812 KB Output is correct
2 Correct 22 ms 41812 KB Output is correct
3 Correct 26 ms 41828 KB Output is correct
4 Correct 24 ms 42212 KB Output is correct
5 Correct 24 ms 42108 KB Output is correct
6 Correct 25 ms 42092 KB Output is correct
7 Correct 26 ms 42188 KB Output is correct
8 Correct 24 ms 42196 KB Output is correct
9 Correct 23 ms 41864 KB Output is correct
10 Correct 25 ms 41944 KB Output is correct
11 Correct 25 ms 41812 KB Output is correct
12 Correct 24 ms 41844 KB Output is correct
13 Correct 25 ms 41804 KB Output is correct
14 Correct 30 ms 41820 KB Output is correct
15 Correct 25 ms 41812 KB Output is correct
16 Correct 25 ms 41832 KB Output is correct
17 Correct 22 ms 41836 KB Output is correct
18 Correct 23 ms 41828 KB Output is correct
19 Correct 23 ms 41804 KB Output is correct
20 Correct 22 ms 41892 KB Output is correct
21 Correct 23 ms 41820 KB Output is correct
22 Correct 22 ms 41796 KB Output is correct
23 Correct 22 ms 41836 KB Output is correct
24 Correct 25 ms 41812 KB Output is correct
25 Correct 22 ms 41812 KB Output is correct
26 Correct 23 ms 41812 KB Output is correct
27 Correct 24 ms 41892 KB Output is correct
28 Correct 23 ms 41844 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 41812 KB Output is correct
2 Correct 602 ms 116696 KB Output is correct
3 Correct 518 ms 113564 KB Output is correct
4 Correct 581 ms 127708 KB Output is correct
5 Correct 509 ms 115148 KB Output is correct
6 Correct 438 ms 114876 KB Output is correct
7 Correct 399 ms 115116 KB Output is correct
8 Correct 390 ms 115460 KB Output is correct
9 Correct 645 ms 136516 KB Output is correct
10 Correct 491 ms 131672 KB Output is correct
11 Correct 654 ms 116768 KB Output is correct
12 Correct 444 ms 113416 KB Output is correct
13 Correct 337 ms 114544 KB Output is correct
14 Correct 343 ms 114060 KB Output is correct
15 Correct 319 ms 113812 KB Output is correct
16 Correct 348 ms 113816 KB Output is correct
17 Correct 330 ms 114276 KB Output is correct
18 Correct 24 ms 41836 KB Output is correct
19 Correct 25 ms 41872 KB Output is correct
20 Correct 23 ms 41888 KB Output is correct
21 Correct 24 ms 41812 KB Output is correct
22 Correct 23 ms 41908 KB Output is correct

Subtask #3
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 41812 KB Output is correct
2 Correct 602 ms 116696 KB Output is correct
3 Correct 518 ms 113564 KB Output is correct
4 Correct 581 ms 127708 KB Output is correct
5 Correct 509 ms 115148 KB Output is correct
6 Correct 438 ms 114876 KB Output is correct
7 Correct 399 ms 115116 KB Output is correct
8 Correct 390 ms 115460 KB Output is correct
9 Correct 645 ms 136516 KB Output is correct
10 Correct 491 ms 131672 KB Output is correct
11 Correct 654 ms 116768 KB Output is correct
12 Correct 444 ms 113416 KB Output is correct
13 Correct 337 ms 114544 KB Output is correct
14 Correct 343 ms 114060 KB Output is correct
15 Correct 319 ms 113812 KB Output is correct
16 Correct 348 ms 113816 KB Output is correct
17 Correct 330 ms 114276 KB Output is correct
18 Correct 24 ms 41836 KB Output is correct
19 Correct 25 ms 41872 KB Output is correct
20 Correct 23 ms 41888 KB Output is correct
21 Correct 24 ms 41812 KB Output is correct
22 Correct 23 ms 41908 KB Output is correct
23 Correct 23 ms 41764 KB Output is correct
24 Correct 582 ms 116544 KB Output is correct
25 Correct 474 ms 123596 KB Output is correct
26 Correct 579 ms 143436 KB Output is correct
27 Correct 528 ms 123916 KB Output is correct
28 Correct 424 ms 124364 KB Output is correct
29 Correct 416 ms 123976 KB Output is correct
30 Correct 358 ms 124252 KB Output is correct
31 Correct 720 ms 137548 KB Output is correct
32 Correct 523 ms 142132 KB Output is correct
33 Correct 683 ms 124108 KB Output is correct
34 Correct 613 ms 124268 KB Output is correct
35 Correct 27 ms 41936 KB Output is correct
36 Correct 24 ms 41812 KB Output is correct
37 Correct 23 ms 41844 KB Output is correct
38 Correct 24 ms 41816 KB Output is correct
39 Correct 24 ms 41844 KB Output is correct
40 Correct 23 ms 41832 KB Output is correct
41 Correct 23 ms 41924 KB Output is correct
42 Correct 23 ms 41880 KB Output is correct
43 Correct 26 ms 41812 KB Output is correct
44 Correct 24 ms 41812 KB Output is correct
45 Correct 24 ms 41804 KB Output is correct
46 Correct 28 ms 41812 KB Output is correct
47 Correct 25 ms 41824 KB Output is correct
48 Correct 26 ms 41864 KB Output is correct
49 Correct 22 ms 41848 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 41868 KB Output is correct
2 Correct 879 ms 133776 KB Output is correct
3 Correct 2353 ms 127884 KB Output is correct
4 Correct 1002 ms 129200 KB Output is correct
5 Correct 873 ms 113696 KB Output is correct
6 Correct 565 ms 113716 KB Output is correct
7 Correct 519 ms 113720 KB Output is correct
8 Correct 339 ms 113876 KB Output is correct
9 Correct 841 ms 127628 KB Output is correct
10 Correct 2310 ms 131148 KB Output is correct
11 Correct 752 ms 113772 KB Output is correct
12 Correct 1713 ms 113336 KB Output is correct
13 Correct 1088 ms 113968 KB Output is correct
14 Correct 1148 ms 114924 KB Output is correct
15 Correct 24 ms 41812 KB Output is correct
16 Correct 23 ms 41780 KB Output is correct
17 Correct 24 ms 41808 KB Output is correct
18 Correct 24 ms 41824 KB Output is correct
19 Correct 24 ms 41788 KB Output is correct

Subtask #5
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 41868 KB Output is correct
2 Correct 896 ms 129776 KB Output is correct
3 Correct 2429 ms 131744 KB Output is correct
4 Correct 1000 ms 134372 KB Output is correct
5 Correct 872 ms 122908 KB Output is correct
6 Correct 595 ms 122744 KB Output is correct
7 Correct 542 ms 122420 KB Output is correct
8 Correct 369 ms 122752 KB Output is correct
9 Correct 952 ms 142152 KB Output is correct
10 Correct 2423 ms 140012 KB Output is correct
11 Correct 781 ms 123396 KB Output is correct
12 Correct 1701 ms 121944 KB Output is correct
13 Correct 1099 ms 122768 KB Output is correct
14 Correct 1163 ms 123676 KB Output is correct
15 Correct 25 ms 41812 KB Output is correct
16 Correct 27 ms 41832 KB Output is correct
17 Correct 25 ms 41788 KB Output is correct
18 Correct 24 ms 41816 KB Output is correct
19 Correct 24 ms 41836 KB Output is correct

Subtask #6
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 41812 KB Output is correct
2 Correct 22 ms 41812 KB Output is correct
3 Correct 26 ms 41828 KB Output is correct
4 Correct 24 ms 42212 KB Output is correct
5 Correct 24 ms 42108 KB Output is correct
6 Correct 25 ms 42092 KB Output is correct
7 Correct 26 ms 42188 KB Output is correct
8 Correct 24 ms 42196 KB Output is correct
9 Correct 23 ms 41864 KB Output is correct
10 Correct 25 ms 41944 KB Output is correct
11 Correct 25 ms 41812 KB Output is correct
12 Correct 24 ms 41844 KB Output is correct
13 Correct 25 ms 41804 KB Output is correct
14 Correct 30 ms 41820 KB Output is correct
15 Correct 25 ms 41812 KB Output is correct
16 Correct 25 ms 41832 KB Output is correct
17 Correct 22 ms 41836 KB Output is correct
18 Correct 23 ms 41828 KB Output is correct
19 Correct 23 ms 41804 KB Output is correct
20 Correct 22 ms 41892 KB Output is correct
21 Correct 23 ms 41820 KB Output is correct
22 Correct 22 ms 41796 KB Output is correct
23 Correct 22 ms 41836 KB Output is correct
24 Correct 25 ms 41812 KB Output is correct
25 Correct 22 ms 41812 KB Output is correct
26 Correct 23 ms 41812 KB Output is correct
27 Correct 24 ms 41892 KB Output is correct
28 Correct 23 ms 41844 KB Output is correct
29 Correct 22 ms 41812 KB Output is correct
30 Correct 602 ms 116696 KB Output is correct
31 Correct 518 ms 113564 KB Output is correct
32 Correct 581 ms 127708 KB Output is correct
33 Correct 509 ms 115148 KB Output is correct
34 Correct 438 ms 114876 KB Output is correct
35 Correct 399 ms 115116 KB Output is correct
36 Correct 390 ms 115460 KB Output is correct
37 Correct 645 ms 136516 KB Output is correct
38 Correct 491 ms 131672 KB Output is correct
39 Correct 654 ms 116768 KB Output is correct
40 Correct 444 ms 113416 KB Output is correct
41 Correct 337 ms 114544 KB Output is correct
42 Correct 343 ms 114060 KB Output is correct
43 Correct 319 ms 113812 KB Output is correct
44 Correct 348 ms 113816 KB Output is correct
45 Correct 330 ms 114276 KB Output is correct
46 Correct 24 ms 41836 KB Output is correct
47 Correct 25 ms 41872 KB Output is correct
48 Correct 23 ms 41888 KB Output is correct
49 Correct 24 ms 41812 KB Output is correct
50 Correct 23 ms 41908 KB Output is correct
51 Correct 23 ms 41764 KB Output is correct
52 Correct 582 ms 116544 KB Output is correct
53 Correct 474 ms 123596 KB Output is correct
54 Correct 579 ms 143436 KB Output is correct
55 Correct 528 ms 123916 KB Output is correct
56 Correct 424 ms 124364 KB Output is correct
57 Correct 416 ms 123976 KB Output is correct
58 Correct 358 ms 124252 KB Output is correct
59 Correct 720 ms 137548 KB Output is correct
60 Correct 523 ms 142132 KB Output is correct
61 Correct 683 ms 124108 KB Output is correct
62 Correct 613 ms 124268 KB Output is correct
63 Correct 27 ms 41936 KB Output is correct
64 Correct 24 ms 41812 KB Output is correct
65 Correct 23 ms 41844 KB Output is correct
66 Correct 24 ms 41816 KB Output is correct
67 Correct 24 ms 41844 KB Output is correct
68 Correct 23 ms 41832 KB Output is correct
69 Correct 23 ms 41924 KB Output is correct
70 Correct 23 ms 41880 KB Output is correct
71 Correct 26 ms 41812 KB Output is correct
72 Correct 24 ms 41812 KB Output is correct
73 Correct 24 ms 41804 KB Output is correct
74 Correct 28 ms 41812 KB Output is correct
75 Correct 25 ms 41824 KB Output is correct
76 Correct 26 ms 41864 KB Output is correct
77 Correct 22 ms 41848 KB Output is correct
78 Correct 23 ms 41868 KB Output is correct
79 Correct 879 ms 133776 KB Output is correct
80 Correct 2353 ms 127884 KB Output is correct
81 Correct 1002 ms 129200 KB Output is correct
82 Correct 873 ms 113696 KB Output is correct
83 Correct 565 ms 113716 KB Output is correct
84 Correct 519 ms 113720 KB Output is correct
85 Correct 339 ms 113876 KB Output is correct
86 Correct 841 ms 127628 KB Output is correct
87 Correct 2310 ms 131148 KB Output is correct
88 Correct 752 ms 113772 KB Output is correct
89 Correct 1713 ms 113336 KB Output is correct
90 Correct 1088 ms 113968 KB Output is correct
91 Correct 1148 ms 114924 KB Output is correct
92 Correct 24 ms 41812 KB Output is correct
93 Correct 23 ms 41780 KB Output is correct
94 Correct 24 ms 41808 KB Output is correct
95 Correct 24 ms 41824 KB Output is correct
96 Correct 24 ms 41788 KB Output is correct
97 Correct 23 ms 41868 KB Output is correct
98 Correct 896 ms 129776 KB Output is correct
99 Correct 2429 ms 131744 KB Output is correct
100 Correct 1000 ms 134372 KB Output is correct
101 Correct 872 ms 122908 KB Output is correct
102 Correct 595 ms 122744 KB Output is correct
103 Correct 542 ms 122420 KB Output is correct
104 Correct 369 ms 122752 KB Output is correct
105 Correct 952 ms 142152 KB Output is correct
106 Correct 2423 ms 140012 KB Output is correct
107 Correct 781 ms 123396 KB Output is correct
108 Correct 1701 ms 121944 KB Output is correct
109 Correct 1099 ms 122768 KB Output is correct
110 Correct 1163 ms 123676 KB Output is correct
111 Correct 25 ms 41812 KB Output is correct
112 Correct 27 ms 41832 KB Output is correct
113 Correct 25 ms 41788 KB Output is correct
114 Correct 24 ms 41816 KB Output is correct
115 Correct 24 ms 41836 KB Output is correct
116 Correct 774 ms 121868 KB Output is correct
117 Correct 1792 ms 124604 KB Output is correct
118 Correct 1058 ms 142444 KB Output is correct
119 Correct 901 ms 124108 KB Output is correct
120 Correct 622 ms 123628 KB Output is correct
121 Correct 620 ms 124312 KB Output is correct
122 Correct 422 ms 124288 KB Output is correct
123 Correct 959 ms 139624 KB Output is correct
124 Correct 2406 ms 136044 KB Output is correct
125 Correct 788 ms 122548 KB Output is correct
126 Correct 1842 ms 124364 KB Output is correct
127 Correct 1873 ms 124988 KB Output is correct
128 Correct 1159 ms 122044 KB Output is correct
129 Correct 1238 ms 114668 KB Output is correct