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[hu6r1s] Week 10 Solutions #1918
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for v in d[course]: | ||
if not dfs(v): | ||
return False | ||
visited.remove(course) | ||
finished.add(course) | ||
return True | ||
|
||
for course in list(d): | ||
if not dfs(course): | ||
return False | ||
return True |
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사소한 간소화입니다 ㅎㅎ
for v in d[course]: | |
if not dfs(v): | |
return False | |
visited.remove(course) | |
finished.add(course) | |
return True | |
for course in list(d): | |
if not dfs(course): | |
return False | |
return True | |
if not all(map(dfs, d.get(course) or tuple())): | |
return False | |
visited.remove(course) | |
finished.add(course) | |
return True | |
return all(map(dfs, d)) |
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DB 풀 스캔과 인덱스 접근의 차이가 느껴지는 문제 같군요.
def mergeTwoLists(li1, li2): | ||
dummy = node = ListNode(-1) | ||
while li1 and li2: | ||
if li1.val < li2.val: | ||
node.next = li1 | ||
li1 = li1.next | ||
else: | ||
node.next = li2 | ||
li2 = li2.next | ||
node = node.next | ||
node.next = li1 if li1 else li2 | ||
return dummy.next | ||
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||
if len(lists) == 0: | ||
return None |
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Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
사소한 간소화입니다 ㅎㅎ
def mergeTwoLists(li1, li2): | |
dummy = node = ListNode(-1) | |
while li1 and li2: | |
if li1.val < li2.val: | |
node.next = li1 | |
li1 = li1.next | |
else: | |
node.next = li2 | |
li2 = li2.next | |
node = node.next | |
node.next = li1 if li1 else li2 | |
return dummy.next | |
if len(lists) == 0: | |
return None | |
def mergeTwoLists(li1, li2): | |
if not li1: | |
return li2 | |
dummy = node = ListNode(-1) | |
while li1 and li2: | |
if li1.val < li2.val: | |
li1, li2 = li2, li1 | |
node.next = li2 | |
li2 = li2.next | |
node = node.next | |
node.next = li1 | |
return dummy.next | |
if not lists: | |
return None |
답안 제출 문제
작성자 체크 리스트
In Review
로 설정해주세요.검토자 체크 리스트
Important
본인 답안 제출 뿐만 아니라 다른 분 PR 하나 이상을 반드시 검토를 해주셔야 합니다!