oj.uz

Submission #1020896

# Submission time Handle Problem Language Result Execution time Memory
1020896 2024-07-12T11:01:41 Z JakobZorz Werewolf (IOI18_werewolf) C++17
15 / 100
 4000 ms 91392 KB 
#include"werewolf.h"
#include<queue>
#include<iostream>
#include<set>
#include<algorithm>
using namespace std;

int n,m,q;
vector<int>nodes[200000];

vector<bool>reachable2(int s,int t){
    vector<bool>vis(n);
    queue<int>q;
    q.push(s);
    while(q.size()){
        int node=q.front();
        q.pop();
        if(vis[node]||node<t)
            continue;
        vis[node]=true;
        for(int ne:nodes[node])
            q.push(ne);
    }
    return vis;
}

struct Query{
    int S,E,L,R;
    int ans;
};

bool cmp(Query*a,Query*b){
    return a->L<b->L;
}

vector<int>check_validity(int N,vector<int>X,vector<int>Y,vector<int>S,vector<int>E,vector<int>L,vector<int>R){
    n=N;
    m=(int)X.size();
    q=(int)S.size();
    for(int i=0;i<n;i++){
        nodes[i].clear();
    }
    for(int i=0;i<m;i++){
        nodes[X[i]].push_back(Y[i]);
        nodes[Y[i]].push_back(X[i]);
    }
    
    vector<int>comp(n);
    vector<vector<int>>comps(n);
    
    for(int i=0;i<n;i++){
        comps[i]={i};
        set<int>to_add;
        for(int ne:nodes[i]){
            if(ne>i)
                continue;
            to_add.insert(comp[ne]);
        }
        for(int j:to_add){
            comps[i].insert(comps[i].end(),comps[j].begin(),comps[j].end());
            comps[i].push_back(i);
        }
        for(int j:comps[i])
            comp[j]=i;
    }
    vector<int>line=comps[comp[0]];
    /*for(int i:line)
        cout<<i<<" ";
    cout<<"\n";*/
    
    vector<Query*>qrs(q);
    
    for(int i=0;i<q;i++){
        qrs[i]=new Query;
        qrs[i]->S=S[i];
        qrs[i]->E=E[i];
        qrs[i]->L=L[i];
        qrs[i]->R=R[i];
        qrs[i]->ans=0;
    }
    
    //vector<Query*>srt=qrs;
    //sort(srt.begin(),srt.end(),cmp);
    
    for(auto qry:qrs){
        vector<bool>v1=reachable2(qry->S,qry->L);
        vector<bool>v2(n);
        for(int j=0;j<(int)line.size();j++){
            if(line[j]==qry->E){
                for(int k=j;k<(int)line.size()&&line[k]<=qry->R;k++)
                    v2[line[k]]=true;
                for(int k=j;k>=0&&line[k]<=qry->R;k--)
                    v2[line[k]]=true;
                break;
            }
        }
        for(int j=0;j<n;j++)
            if(v1[j]&&v2[j])
                qry->ans=1;
    }
    
    vector<int>res(q);
    for(int i=0;i<q;i++)
        res[i]=qrs[i]->ans;
    return res;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5208 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 4 ms 4956 KB Output is correct
4 Correct 2 ms 5128 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4952 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Correct 3 ms 4956 KB Output is correct
9 Correct 3 ms 5208 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5208 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 4 ms 4956 KB Output is correct
4 Correct 2 ms 5128 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4952 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Correct 3 ms 4956 KB Output is correct
9 Correct 3 ms 5208 KB Output is correct
10 Correct 173 ms 31212 KB Output is correct
11 Correct 89 ms 21596 KB Output is correct
12 Correct 23 ms 5976 KB Output is correct
13 Correct 132 ms 69268 KB Output is correct
14 Correct 86 ms 69204 KB Output is correct
15 Correct 141 ms 23376 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4064 ms 91392 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 5208 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 4 ms 4956 KB Output is correct
4 Correct 2 ms 5128 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4952 KB Output is correct
7 Correct 3 ms 4956 KB Output is correct
8 Correct 3 ms 4956 KB Output is correct
9 Correct 3 ms 5208 KB Output is correct
10 Correct 173 ms 31212 KB Output is correct
11 Correct 89 ms 21596 KB Output is correct
12 Correct 23 ms 5976 KB Output is correct
13 Correct 132 ms 69268 KB Output is correct
14 Correct 86 ms 69204 KB Output is correct
15 Correct 141 ms 23376 KB Output is correct
16 Execution timed out 4064 ms 91392 KB Time limit exceeded
17 Halted 0 ms 0 KB -