Submission #1868235
Source Code Expand
#include<bits/stdc++.h> using namespace std; inline int read() { int x=0;char ch=getchar(); while(ch<'0' || '9'<ch)ch=getchar(); while('0'<=ch && ch<='9')x=x*10+(ch^48),ch=getchar(); return x; } const int N=1e5+9; int n,m,top,q[N]; int to[N<<1],nxt[N<<1],beg[N],tot; bool vis[N]; inline void add(int u,int v) { to[++tot]=v; nxt[tot]=beg[u]; beg[u]=tot; } inline void dfs(int u) { vis[q[++top]=u]=1; bool f=0; for(int i=beg[u];i;i=nxt[i]) if(!vis[to[i]] && !f) { dfs(to[i]); f=1; } } int main() { n=read();m=read(); for(int i=1,u,v;i<=m;i++) { u=read();v=read(); add(u,v);add(v,u); } dfs(1); reverse(q+1,q+top+1); top--; dfs(1); printf("%d\n",top); for(int i=1;i<=top;i++) printf("%d ",q[i]); return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Hamiltonish Path |
User | Aldrich |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 825 Byte |
Status | AC |
Exec Time | 24 ms |
Memory | 4096 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
|
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 | 1 ms | 256 KB |
sample_02.txt | AC | 1 ms | 256 KB |
sample_03.txt | AC | 1 ms | 256 KB |
subtask_1_01.txt | AC | 10 ms | 2048 KB |
subtask_1_02.txt | AC | 4 ms | 768 KB |
subtask_1_03.txt | AC | 10 ms | 1920 KB |
subtask_1_04.txt | AC | 11 ms | 2048 KB |
subtask_1_05.txt | AC | 11 ms | 2048 KB |
subtask_1_06.txt | AC | 11 ms | 2048 KB |
subtask_1_07.txt | AC | 11 ms | 2176 KB |
subtask_1_08.txt | AC | 11 ms | 2176 KB |
subtask_1_09.txt | AC | 24 ms | 4096 KB |
subtask_1_10.txt | AC | 5 ms | 1024 KB |
subtask_1_11.txt | AC | 6 ms | 1152 KB |
subtask_1_12.txt | AC | 1 ms | 256 KB |
subtask_1_13.txt | AC | 1 ms | 256 KB |