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Submission #755472

# Submission time Handle Problem Language Result Execution time Memory
755472 2023-06-10T07:04:25 Z irmuun Senior Postmen (BOI14_postmen) C++17
55 / 100
 500 ms 101660 KB 
#include<bits/stdc++.h>

using namespace std;
 
#define pb push_back
#define ll long long
#define ff first
#define ss second
#define all(s) s.begin(),s.end()

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    int n,m;
    cin>>n>>m;
    set<int>adj[n+1];
    vector<int>used(n+1,0);
    for(int i=1;i<=m;i++){
        int u,v;
        cin>>u>>v;
        adj[u].insert(v);
        adj[v].insert(u);
    }
    vector<int>ord;
    function <void(int)> dfs=[&](int x){
        ord.pb(x);
        if(adj[x].size()==0){
            return;
        }
        int y=*adj[x].begin();
        adj[x].erase(y);
        adj[y].erase(x);
        dfs(y);
    };
    for(int i=1;i<=n;i++){
        if(adj[i].size()>0){
            dfs(i);
        }
    }
    stack<int>v;
    for(int i=0;i<ord.size();i++){
        if(used[ord[i]]==0){
            used[ord[i]]=1;
            v.push(ord[i]);
        }
        else{
            int x=ord[i];
            cout<<x<<' ';
            while(!v.empty()){
                int y=v.top();
                if(x!=y){
                    cout<<y<<' ';
                    v.pop();
                    used[y]=0;
                }
                else{
                    break;
                }
            }
            cout<<"\n";
        }
    }
}

Compilation message

postmen.cpp: In function 'int main()':
postmen.cpp:40:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |     for(int i=0;i<ord.size();i++){
      |                 ~^~~~~~~~~~~

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 2 ms 852 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 3 ms 912 KB Output is correct
7 Correct 10 ms 2240 KB Output is correct
8 Correct 2 ms 724 KB Output is correct
9 Correct 141 ms 10640 KB Output is correct
10 Correct 2 ms 852 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 111 ms 10852 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 3 ms 852 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 3 ms 852 KB Output is correct
7 Correct 12 ms 2140 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 135 ms 10612 KB Output is correct
10 Correct 2 ms 852 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 107 ms 10840 KB Output is correct
13 Correct 95 ms 20552 KB Output is correct
14 Correct 92 ms 19284 KB Output is correct
15 Correct 92 ms 18716 KB Output is correct
16 Correct 89 ms 20604 KB Output is correct
17 Correct 91 ms 18912 KB Output is correct
18 Correct 94 ms 15844 KB Output is correct

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 2 ms 852 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 3 ms 852 KB Output is correct
7 Correct 11 ms 2256 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 112 ms 10636 KB Output is correct
10 Correct 2 ms 852 KB Output is correct
11 Correct 3 ms 724 KB Output is correct
12 Correct 115 ms 10824 KB Output is correct
13 Correct 78 ms 20492 KB Output is correct
14 Correct 107 ms 19268 KB Output is correct
15 Correct 93 ms 18724 KB Output is correct
16 Correct 80 ms 20576 KB Output is correct
17 Correct 107 ms 18888 KB Output is correct
18 Correct 91 ms 15904 KB Output is correct
19 Execution timed out 523 ms 101660 KB Time limit exceeded
20 Halted 0 ms 0 KB -