oj.uz

Submission #604544

# Submission time Handle Problem Language Result Execution time Memory
604544 2022-07-25T07:24:46 Z temporary_juggernaut Werewolf (IOI18_werewolf) C++14
49 / 100
 694 ms 59924 KB 
#include"werewolf.h"
#include<bits/stdc++.h>
//#include"grader.cpp"
#define V vector
using namespace std;
V<int>g[200005];
int pos[200005],logs[200005],spx[200005][18],spn[200005][18],used[200005];
bool flag;
int gt_mx(int l,int r){
    int lev=logs[r-l+1];
    return max(spx[l][lev],spx[r-(1<<lev)+1][lev]);
}
int gt_mn(int l,int r){
    int lev=logs[r-l+1];
    return min(spn[l][lev],spn[r-(1<<lev)+1][lev]);
}
bool check(int l,int r,int nl,int nr){
    if(l>r)swap(l,r);
    return gt_mn(l,r)>=nl&&gt_mx(l,r)<=nr;
}
void man(int v,int mx){
      if(v<mx)return;
      used[v]=1;
      for(auto to:g[v])if(!used[to]&&to>=mx)man(to,mx);
}
void wolf(int v,int mx) {
      if(v>mx)return;
      if(used[v]||flag){
          flag=1;
          return;
      }
      used[v]=2;
      for(auto to:g[v])if(used[to]!=2&&to<=mx)wolf(to,mx);
}
V<int>check_validity(int n,V<int>x,V<int>y,V<int>S,V<int>E,V<int>L,V<int>R){
    V<int>res;
    int root,i,j;
    for(i=2;i<=n;i++)logs[i]=logs[i>>1]+1;
    for(i=0;i<x.size();i++){
        x[i]++;
        y[i]++;
        g[x[i]].push_back(y[i]);
        g[y[i]].push_back(x[i]);
    }
    if(n<3001&&x.size()<6001&&S.size()<3001){
        for(i=0;i<S.size();i++){
            flag=0;
            fill(used+1,used+1+n,0);
            man(S[i]+1,L[i]+1);
            wolf(E[i]+1,R[i]+1);
            res.push_back(flag);
        }
        return res;
    }
    for(i=1;i<=n;i++)if(g[i].size()==1)root=i;
    spx[1][0]=root;
    spn[1][0]=root;
    pos[root]=1;
    int p=root;
    for(i=2;i<=n;i++){
        if(g[root][0]!=p){
            p=root;
            root=g[root][0];
        }else{
            p=root;
            root=g[root][1];
        }
        spx[i][0]=root;
        spn[i][0]=root;
        pos[root]=i;
    }
    for(j=1;j<18;j++){
        for(i=1;i+(1<<j)-1<=n;i++)spn[i][j]=min(spn[i][j-1],spn[i+(1<<(j-1))][j-1]);
        for(i=1;i+(1<<j)-1<=n;i++)spx[i][j]=max(spx[i][j-1],spx[i+(1<<(j-1))][j-1]);
    }
    for(int i=0;i<S.size();i++){
        int l=pos[S[i]+1],r=pos[E[i]+1],s=L[i]+1,e=R[i]+1;
        if(l<=r){
            int mxl=n,mnr=1;
            while(l<mxl){
                int mid=(l+mxl+1)>>1;
                if(check(pos[S[i]+1],mid,s,n))l=mid;
                else mxl=mid-1;
            }
            while(mnr<r){
                int mid=(mnr+r)>>1;
                if(check(mid,pos[E[i]+1],1,e))r=mid;
                else mnr=mid+1;
            }
            res.push_back(mxl>=mnr);
        }else{
            swap(l,r);
            int mxl=n,mnr=1;
            while(l<mxl){
                int mid=(l+mxl+1)>>1;
                if(check(pos[E[i]+1],mid,1,e))l=mid;
                else mxl=mid-1;
            }
            while(mnr<r){
                int mid=(mnr+r)>>1;
                if(check(mid,pos[S[i]+1],s,n))r=mid;
                else mnr=mid+1;
            }
            res.push_back(mxl>=mnr);
        }
    }
    return res;
}
/*
10 9 10
6 7
1 5
8 0
2 9
9 4
2 7
8 5
6 0
3 4
4 9 0 9
8 1 8 9
1 8 1 8
8 3 5 5
8 9 3 9
0 1 0 2
9 0 6 6
1 7 1 8
9 4 5 6
9 5 0 9
 
/*
1
1
1
0
1
1
0
1
0
1
 
*/

Compilation message

werewolf.cpp:131:1: warning: "/*" within comment [-Wcomment]
  131 | /*
      |  
werewolf.cpp: In function 'std::vector<int> check_validity(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
werewolf.cpp:39:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     for(i=0;i<x.size();i++){
      |             ~^~~~~~~~~
werewolf.cpp:46:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for(i=0;i<S.size();i++){
      |                 ~^~~~~~~~~
werewolf.cpp:76:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |     for(int i=0;i<S.size();i++){
      |                 ~^~~~~~~~~
werewolf.cpp:56:14: warning: 'root' may be used uninitialized in this function [-Wmaybe-uninitialized]
   56 |     spx[1][0]=root;
      |     ~~~~~~~~~^~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 5008 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 5008 KB Output is correct
10 Correct 156 ms 5332 KB Output is correct
11 Correct 78 ms 5388 KB Output is correct
12 Correct 12 ms 5436 KB Output is correct
13 Correct 137 ms 5412 KB Output is correct
14 Correct 100 ms 5332 KB Output is correct
15 Correct 193 ms 5564 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 570 ms 59924 KB Output is correct
2 Correct 672 ms 53448 KB Output is correct
3 Correct 591 ms 53384 KB Output is correct
4 Correct 694 ms 53396 KB Output is correct
5 Correct 650 ms 53352 KB Output is correct
6 Correct 616 ms 53456 KB Output is correct
7 Correct 666 ms 53464 KB Output is correct
8 Correct 520 ms 53448 KB Output is correct
9 Correct 427 ms 53536 KB Output is correct
10 Correct 364 ms 53428 KB Output is correct
11 Correct 389 ms 53432 KB Output is correct
12 Correct 381 ms 53436 KB Output is correct
13 Correct 642 ms 53452 KB Output is correct
14 Correct 689 ms 53424 KB Output is correct
15 Correct 639 ms 53672 KB Output is correct
16 Correct 686 ms 53976 KB Output is correct
17 Correct 602 ms 54124 KB Output is correct

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 5008 KB Output is correct
10 Correct 156 ms 5332 KB Output is correct
11 Correct 78 ms 5388 KB Output is correct
12 Correct 12 ms 5436 KB Output is correct
13 Correct 137 ms 5412 KB Output is correct
14 Correct 100 ms 5332 KB Output is correct
15 Correct 193 ms 5564 KB Output is correct
16 Correct 570 ms 59924 KB Output is correct
17 Correct 672 ms 53448 KB Output is correct
18 Correct 591 ms 53384 KB Output is correct
19 Correct 694 ms 53396 KB Output is correct
20 Correct 650 ms 53352 KB Output is correct
21 Correct 616 ms 53456 KB Output is correct
22 Correct 666 ms 53464 KB Output is correct
23 Correct 520 ms 53448 KB Output is correct
24 Correct 427 ms 53536 KB Output is correct
25 Correct 364 ms 53428 KB Output is correct
26 Correct 389 ms 53432 KB Output is correct
27 Correct 381 ms 53436 KB Output is correct
28 Correct 642 ms 53452 KB Output is correct
29 Correct 689 ms 53424 KB Output is correct
30 Correct 639 ms 53672 KB Output is correct
31 Correct 686 ms 53976 KB Output is correct
32 Correct 602 ms 54124 KB Output is correct
33 Runtime error 184 ms 52196 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -