Submission #1221798


Source Code Expand

#include <bits/stdc++.h>
using namespace std;

constexpr int maxn = 1e5 + 100;

int n, m;
vector<int> vec[maxn]= {}, path;
bitset<maxn> viz = 0;

bool extend_path(){
    const int cur = path.back();
    while(!vec[cur].empty() && viz[vec[cur].back()]) vec[cur].pop_back();
    if(vec[cur].empty()) return false;
    viz[vec[cur].back()] = 1;
    path.push_back(vec[cur].back());
    return true; }

int main(){
    cin >> n >> m;
    for(int i = 0, a, b; i < m; ++i){
        cin >> a >> b;
        vec[a].push_back(b);
        vec[b].push_back(a); }
    path.push_back(1);
    path.push_back(vec[1][0]);
    viz[1] = viz[vec[1][0]] = 1;
    while(extend_path());
    reverse(begin(path), end(path));
    while(extend_path());
    cout << path.size() << endl;
    for(const auto x : path) cout << x << ' ';
    cout << endl;
    return 0; }

Submission Info

Submission Time
Task B - Hamiltonish Path
User tamionv
Language C++14 (GCC 5.4.1)
Score 500
Code Size 874 Byte
Status AC
Exec Time 99 ms
Memory 6776 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 3
AC × 19
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt
Case Name Status Exec Time Memory
sample_01.txt AC 2 ms 2560 KB
sample_02.txt AC 2 ms 2560 KB
sample_03.txt AC 2 ms 2560 KB
subtask_1_01.txt AC 79 ms 4736 KB
subtask_1_02.txt AC 21 ms 3072 KB
subtask_1_03.txt AC 72 ms 4736 KB
subtask_1_04.txt AC 83 ms 4736 KB
subtask_1_05.txt AC 86 ms 4736 KB
subtask_1_06.txt AC 84 ms 4736 KB
subtask_1_07.txt AC 92 ms 5888 KB
subtask_1_08.txt AC 88 ms 5760 KB
subtask_1_09.txt AC 99 ms 6776 KB
subtask_1_10.txt AC 26 ms 3328 KB
subtask_1_11.txt AC 32 ms 3328 KB
subtask_1_12.txt AC 2 ms 2560 KB
subtask_1_13.txt AC 2 ms 2560 KB