oj.uz

Submission #1020884

# Submission time Handle Problem Language Result Execution time Memory
1020884 2024-07-12T10:49:41 Z JakobZorz Werewolf (IOI18_werewolf) C++17
15 / 100
 4000 ms 88092 KB 
#include"werewolf.h"
#include<queue>
#include<iostream>
#include<set>
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;
}

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<int>res(q);
    
    for(int i=0;i<q;i++){
        vector<bool>v1=reachable2(S[i],L[i]);
        vector<bool>v2(n);
        for(int j=0;j<(int)line.size();j++){
            if(line[j]==E[i]){
                for(int k=j;k<(int)line.size()&&line[k]<=R[i];k++)
                    v2[line[k]]=true;
                for(int k=j;k>=0&&line[k]<=R[i];k--)
                    v2[line[k]]=true;
                break;
            }
        }
        for(int j=0;j<n;j++)
            if(v1[j]&&v2[j])
                res[i]=1;
    }
    
    return res;
}

Subtask #1
7.0 / 7.0

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

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 5208 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 1 ms 4952 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 2 ms 5208 KB Output is correct
10 Correct 156 ms 31020 KB Output is correct
11 Correct 91 ms 21336 KB Output is correct
12 Correct 23 ms 6172 KB Output is correct
13 Correct 120 ms 69276 KB Output is correct
14 Correct 69 ms 69360 KB Output is correct
15 Correct 136 ms 23128 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4058 ms 88092 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 5208 KB Output is correct
2 Correct 1 ms 4952 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 1 ms 4952 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 2 ms 5208 KB Output is correct
10 Correct 156 ms 31020 KB Output is correct
11 Correct 91 ms 21336 KB Output is correct
12 Correct 23 ms 6172 KB Output is correct
13 Correct 120 ms 69276 KB Output is correct
14 Correct 69 ms 69360 KB Output is correct
15 Correct 136 ms 23128 KB Output is correct
16 Execution timed out 4058 ms 88092 KB Time limit exceeded
17 Halted 0 ms 0 KB -