oj.uz

Submission #1104859

# Submission time Handle Problem Language Result Execution time Memory
1104859 2024-10-24T14:36:32 Z sweed Tropical Garden (IOI11_garden) C++14
100 / 100
 1707 ms 85832 KB 
 #include "garden.h"
  #include "gardenlib.h"
  #define pb emplace_back
  #include<bits/stdc++.h>
  using namespace std;
  vector<int>g[300005];
  vector<int>g2[600005];
  int jp=0;
  vector<int>g_rev[600005];
  bool cycle=false;
  int c;
  map<int,bool>vs;
  bool vs1[600005],vs2[600005];
  void dfs(int u,int cnt,int pp)
  {
    if(vs[u]) 
    {
      if(u==pp)
      {
        cycle = true;
        c = cnt;
      }
      return ;
    }
    vs[u]=true;
    for(auto v:g2[u])
    {
      dfs(v,cnt+1,pp);
    }
  }
  int cnt_ans1[600005];
  int cnt_ans2[600005];
 
  void dfs1(int u,int cnt)
  {
    if(vs1[u]) return ;
    vs1[u] = true;
    cnt_ans1[u] = cnt;
    for(auto v:g_rev[u]) dfs1(v,cnt+1);
  }
  void dfs2(int u,int cnt)
  {
    if(vs2[u]) return ;
    vs2[u] = true;
    cnt_ans2[u] = cnt;
    for(auto v:g_rev[u]) dfs2(v,cnt+1);
  }
 
 
  void count_routes(int n, int m, int p, int R[][2], int Q, int G[])
  {
    for(int i=0;i<m;i++)
    {
      if(g[R[i][0]].size()<=2) g[R[i][0]].pb(R[i][1]);
      if(g[R[i][1]].size()<=2) g[R[i][1]].pb(R[i][0]);
    }
    for(int i=0;i<n;i++)
    {
      int v = g[i][0];
      if(i==g[v][0]) g2[i].pb(v+n);
      else  g2[i].pb(v);
      int vv;
      if(g[i].size()!=1) vv = g[i][1];
      else vv = g[i][0];
 
      if(i==g[vv][0]) g2[i+n].pb(vv+n);
      else  g2[i+n].pb(vv);
    }
    for(int i=0;i<2*n;i++)
    {
      g_rev[g2[i][0]].pb(i);
    }
    dfs(p,0,p);
    bool cycle1 = cycle;
    int c1 = c;
    cycle=false;
    vs.clear();
    dfs(n+p,0,n+p);
    vs.clear();
    bool cycle2 = cycle;
    int c2 = c;

    dfs1(p,0);
    dfs2(p+n,0);
 
    
    for(int k=0;k<Q;k++)
    {
      int d = G[k];
      int ans=0;

      for(int i=0;i<n;i++)
      {
        bool ok = 0;
        int len = d - cnt_ans1[i];
        if(len >= 0 and vs1[i]) {
        if(cycle1 and len%c1 == 0) ok = 1;
        else if(!cycle1 and len == 0) ok = 1;          
        }

        len = d - cnt_ans2[i];
        if(len >= 0 and vs2[i]) {
        if(cycle2 and len%c2 == 0) ok = 1;
        else if(!cycle2 and len == 0) ok = 1;          
        }

        ans += ok;
        continue ;

        // bool ch=true;
        // if(cycle1 and (d-cnt_ans1[i])%c1==0) 
        // {
        //     ans++;
        //     ch=false;
        // } 
        // else if(!cycle1 and d==cnt_ans1[i])
        // {
        //   ans++;
        //   ch=false;
        // }
        // if(!ch) continue;
        // if(cycle2 and (d-cnt_ans2[i])%c2==0) 
        // {
        //     ans++;
        //     ch=false;
        // } 
        // else if(!cycle2 and d==cnt_ans2[i])
        // {
        //   ans++;
        //   ch=false;
        // }
        // cout << ans << ' ' << i << endl;
      }
      // cout << endl;
      answer(ans);
    }
    
  }

Subtask #1
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 39504 KB Output is correct
2 Correct 10 ms 39504 KB Output is correct
3 Correct 8 ms 39504 KB Output is correct
4 Correct 7 ms 39416 KB Output is correct
5 Correct 7 ms 39352 KB Output is correct
6 Correct 8 ms 39504 KB Output is correct
7 Correct 8 ms 39248 KB Output is correct
8 Correct 8 ms 39376 KB Output is correct
9 Correct 9 ms 39516 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 39504 KB Output is correct
2 Correct 10 ms 39504 KB Output is correct
3 Correct 8 ms 39504 KB Output is correct
4 Correct 7 ms 39416 KB Output is correct
5 Correct 7 ms 39352 KB Output is correct
6 Correct 8 ms 39504 KB Output is correct
7 Correct 8 ms 39248 KB Output is correct
8 Correct 8 ms 39376 KB Output is correct
9 Correct 9 ms 39516 KB Output is correct
10 Correct 8 ms 39248 KB Output is correct
11 Correct 19 ms 44624 KB Output is correct
12 Correct 27 ms 46160 KB Output is correct
13 Correct 123 ms 78152 KB Output is correct
14 Correct 82 ms 60744 KB Output is correct
15 Correct 84 ms 60920 KB Output is correct
16 Correct 69 ms 55892 KB Output is correct
17 Correct 70 ms 53576 KB Output is correct
18 Correct 26 ms 48476 KB Output is correct
19 Correct 78 ms 60840 KB Output is correct
20 Correct 82 ms 61000 KB Output is correct
21 Correct 64 ms 55624 KB Output is correct
22 Correct 60 ms 53584 KB Output is correct
23 Correct 109 ms 62544 KB Output is correct

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 39504 KB Output is correct
2 Correct 10 ms 39504 KB Output is correct
3 Correct 8 ms 39504 KB Output is correct
4 Correct 7 ms 39416 KB Output is correct
5 Correct 7 ms 39352 KB Output is correct
6 Correct 8 ms 39504 KB Output is correct
7 Correct 8 ms 39248 KB Output is correct
8 Correct 8 ms 39376 KB Output is correct
9 Correct 9 ms 39516 KB Output is correct
10 Correct 8 ms 39248 KB Output is correct
11 Correct 19 ms 44624 KB Output is correct
12 Correct 27 ms 46160 KB Output is correct
13 Correct 123 ms 78152 KB Output is correct
14 Correct 82 ms 60744 KB Output is correct
15 Correct 84 ms 60920 KB Output is correct
16 Correct 69 ms 55892 KB Output is correct
17 Correct 70 ms 53576 KB Output is correct
18 Correct 26 ms 48476 KB Output is correct
19 Correct 78 ms 60840 KB Output is correct
20 Correct 82 ms 61000 KB Output is correct
21 Correct 64 ms 55624 KB Output is correct
22 Correct 60 ms 53584 KB Output is correct
23 Correct 109 ms 62544 KB Output is correct
24 Correct 7 ms 39248 KB Output is correct
25 Correct 120 ms 44624 KB Output is correct
26 Correct 201 ms 48464 KB Output is correct
27 Correct 796 ms 78368 KB Output is correct
28 Correct 1120 ms 60744 KB Output is correct
29 Correct 1055 ms 61168 KB Output is correct
30 Correct 627 ms 55888 KB Output is correct
31 Correct 453 ms 53752 KB Output is correct
32 Correct 208 ms 46448 KB Output is correct
33 Correct 1104 ms 60736 KB Output is correct
34 Correct 1064 ms 61256 KB Output is correct
35 Correct 556 ms 55624 KB Output is correct
36 Correct 862 ms 53576 KB Output is correct
37 Correct 861 ms 62756 KB Output is correct
38 Correct 1707 ms 85832 KB Output is correct