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Submission #961028

# Submission time Handle Problem Language Result Execution time Memory
961028 2024-04-11T12:12:54 Z noyancanturk Senior Postmen (BOI14_postmen) C++17
100 / 100
 421 ms 78016 KB 
#ifndef Local
    #pragma GCC optimize("O3,unroll-loops")
#endif
    
#include "bits/stdc++.h"
using namespace std;
    
#define int int64_t
#define pb push_back
    
const int lim=5e5+100;
const int mod=998244353;
//const int mod=(1ll<<61)-1;
 
using pii=pair<int,int>;

vector<int>v[lim];
bool vis[2*lim];
vector<int>path;
int to[2*lim];

void dfs(int node){
    while(v[node].size()){
        int now=v[node].back();
        v[node].pop_back();
        if(vis[now])continue;
        vis[now]=vis[now^1]=1;
        dfs(to[now]);
    }
    path.pb(node);
}

inline void solve(){
    int n,m;
    cin>>n>>m;
    for(int i=0;i<m;i++){
        int x,y;
        cin>>x>>y;
        to[2*i]=y;
        to[2*i+1]=x;
        v[x].pb(2*i);
        v[y].pb(2*i+1);
    }
    dfs(1);
    vector<int>cur;
    bool seen[n+1];
    memset(seen,0,sizeof(seen));
    for(int j:path){
        if(seen[j]){
            cout<<j<<" ";
            while(cur.back()!=j){
                cout<<cur.back()<<" ";
                seen[cur.back()]=0;
                cur.pop_back();
            } 
            cout<<"\n";
        }else{
            cur.push_back(j);
            seen[j]=1;
        }
    }
}
    
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
#ifdef Local  
    freopen(".in","r",stdin);
    freopen(".out","w",stdout);
#endif
    int t=1;
    //cin>>t;
    while (t--)
    {
        solve();
    }
}

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 14428 KB Output is correct
2 Correct 4 ms 14428 KB Output is correct
3 Correct 4 ms 14428 KB Output is correct
4 Correct 5 ms 14940 KB Output is correct
5 Correct 4 ms 14684 KB Output is correct
6 Correct 6 ms 15192 KB Output is correct
7 Correct 8 ms 18288 KB Output is correct
8 Correct 5 ms 14684 KB Output is correct
9 Correct 29 ms 24796 KB Output is correct
10 Correct 5 ms 14936 KB Output is correct
11 Correct 5 ms 14940 KB Output is correct
12 Correct 33 ms 25112 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 14428 KB Output is correct
2 Correct 4 ms 14516 KB Output is correct
3 Correct 4 ms 14428 KB Output is correct
4 Correct 5 ms 14940 KB Output is correct
5 Correct 4 ms 14684 KB Output is correct
6 Correct 5 ms 15192 KB Output is correct
7 Correct 11 ms 18456 KB Output is correct
8 Correct 5 ms 14684 KB Output is correct
9 Correct 27 ms 24772 KB Output is correct
10 Correct 5 ms 14936 KB Output is correct
11 Correct 5 ms 15136 KB Output is correct
12 Correct 38 ms 25040 KB Output is correct
13 Correct 41 ms 26948 KB Output is correct
14 Correct 39 ms 24280 KB Output is correct
15 Correct 38 ms 25540 KB Output is correct
16 Correct 43 ms 26952 KB Output is correct
17 Correct 40 ms 21396 KB Output is correct
18 Correct 41 ms 25032 KB Output is correct

Subtask #3
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 14424 KB Output is correct
2 Correct 4 ms 14428 KB Output is correct
3 Correct 4 ms 14424 KB Output is correct
4 Correct 5 ms 14940 KB Output is correct
5 Correct 4 ms 14684 KB Output is correct
6 Correct 6 ms 15196 KB Output is correct
7 Correct 8 ms 18268 KB Output is correct
8 Correct 5 ms 14684 KB Output is correct
9 Correct 28 ms 24704 KB Output is correct
10 Correct 5 ms 14936 KB Output is correct
11 Correct 5 ms 14940 KB Output is correct
12 Correct 30 ms 25172 KB Output is correct
13 Correct 44 ms 26952 KB Output is correct
14 Correct 46 ms 24428 KB Output is correct
15 Correct 47 ms 25596 KB Output is correct
16 Correct 50 ms 27040 KB Output is correct
17 Correct 46 ms 21564 KB Output is correct
18 Correct 43 ms 24956 KB Output is correct
19 Correct 363 ms 71476 KB Output is correct
20 Correct 369 ms 65132 KB Output is correct
21 Correct 309 ms 72188 KB Output is correct
22 Correct 369 ms 78016 KB Output is correct
23 Correct 133 ms 62836 KB Output is correct
24 Correct 407 ms 50492 KB Output is correct
25 Correct 421 ms 68792 KB Output is correct