Submission #3459330


Source Code Expand

import sys
stdin = sys.stdin
 
sys.setrecursionlimit(10**5) 
 
def li(): return map(int, stdin.readline().split())
def li_(): return map(lambda x: int(x)-1, stdin.readline().split())
def lf(): return map(float, stdin.readline().split())
def ls(): return stdin.readline().split()
def ns(): return stdin.readline().rstrip()
def lc(): return list(ns())
def ni(): return int(stdin.readline())
def nf(): return float(stdin.readline())

from collections import deque

n,m = li()

graph = [[] for _ in range(n)]
for _ in range(m):
    a,b = li_()
    graph[a].append(b)
    graph[b].append(a)
    
    path = deque([a,b])
    
path_set = set(path)

ed = b

satisfied = False
while not satisfied:
    
    satisfied = True
    
    for nex in graph[ed]:
        if nex in path_set:
            continue
        else:
            path_set.add(nex)
            path.append(nex)
            ed = nex
            satisfied = False
            break

    
ed = a

satisfied = False
while not satisfied:
    satisfied = True
    
    for nex in graph[ed]:
        if nex in path_set:
            continue
        else:
            path_set.add(nex)
            path.appendleft(nex)
            ed = nex
            satisfied = False
            break 
    
path = [pi+1 for pi in path]
    
print(len(path))
print(*path)

Submission Info

Submission Time
Task B - Hamiltonish Path
User polarbear08
Language Python (3.4.3)
Score 500
Code Size 1371 Byte
Status AC
Exec Time 485 ms
Memory 33100 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 20 ms 3316 KB
sample_02.txt AC 20 ms 3316 KB
sample_03.txt AC 20 ms 3316 KB
subtask_1_01.txt AC 273 ms 17112 KB
subtask_1_02.txt AC 90 ms 6644 KB
subtask_1_03.txt AC 242 ms 16972 KB
subtask_1_04.txt AC 294 ms 16476 KB
subtask_1_05.txt AC 294 ms 16476 KB
subtask_1_06.txt AC 291 ms 16988 KB
subtask_1_07.txt AC 324 ms 21724 KB
subtask_1_08.txt AC 336 ms 21596 KB
subtask_1_09.txt AC 485 ms 33100 KB
subtask_1_10.txt AC 125 ms 4852 KB
subtask_1_11.txt AC 153 ms 5492 KB
subtask_1_12.txt AC 20 ms 3316 KB
subtask_1_13.txt AC 21 ms 3316 KB