merge two sorted list in a decent solution but get low scores
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merge two sorted list in a decent solution but get low scores
$begingroup$
I tried to solve a merge two sorted list problem in leetcodes
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.
Example:
Input: 1->2->4, 1->3->4
Output: 1->1->2->3->4->4
class Solution:
def mergeTwoLists(self, l1: ListNode, l2: ListNode) -> ListNode:
"""
Plan:
Compare l1 and l2 and merge the remainders
"""
l3_head = ListNode(0)
l3_cur = l3_head
while l1 and l2: #assert both exist
if l2.val < l1.val:
l3_cur.next = l2 #build l3's node
l2 = l2.next #this is i++
else:
l3_cur.next = l1
l1 = l1.next
l3_cur = l3_cur.next #find the next to build
if l1:
l3_cur.next = l1
if l2:
l3_cur.next = l2
return l3_head.next
I assumed this is a decent solution but got
>
Runtime: 56 ms, faster than 23.98% of Python3 online submissions for Merge Two Sorted Lists.
Memory Usage: 13.1 MB, less than 5.06% of Python3 online submissions for Merge Two Sorted Lists.
Next challenges:
How could improve my solution?
python
asked 1 min ago
AliceAlice
1764
New contributor
Alice is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I tried to solve a merge two sorted list problem in leetcodes
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.
Example:
Input: 1->2->4, 1->3->4
Output: 1->1->2->3->4->4
class Solution:
def mergeTwoLists(self, l1: ListNode, l2: ListNode) -> ListNode:
"""
Plan:
Compare l1 and l2 and merge the remainders
"""
l3_head = ListNode(0)
l3_cur = l3_head
while l1 and l2: #assert both exist
if l2.val < l1.val:
l3_cur.next = l2 #build l3's node
l2 = l2.next #this is i++
else:
l3_cur.next = l1
l1 = l1.next
l3_cur = l3_cur.next #find the next to build
if l1:
l3_cur.next = l1
if l2:
l3_cur.next = l2
return l3_head.next
I assumed this is a decent solution but got
>
Runtime: 56 ms, faster than 23.98% of Python3 online submissions for Merge Two Sorted Lists.
Memory Usage: 13.1 MB, less than 5.06% of Python3 online submissions for Merge Two Sorted Lists.
Next challenges:
How could improve my solution?
python
asked 1 min ago
AliceAlice
1764
New contributor
Alice is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I tried to solve a merge two sorted list problem in leetcodes
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.
Example:
Input: 1->2->4, 1->3->4
Output: 1->1->2->3->4->4
class Solution:
def mergeTwoLists(self, l1: ListNode, l2: ListNode) -> ListNode:
"""
Plan:
Compare l1 and l2 and merge the remainders
"""
l3_head = ListNode(0)
l3_cur = l3_head
while l1 and l2: #assert both exist
if l2.val < l1.val:
l3_cur.next = l2 #build l3's node
l2 = l2.next #this is i++
else:
l3_cur.next = l1
l1 = l1.next
l3_cur = l3_cur.next #find the next to build
if l1:
l3_cur.next = l1
if l2:
l3_cur.next = l2
return l3_head.next
I assumed this is a decent solution but got
>
Runtime: 56 ms, faster than 23.98% of Python3 online submissions for Merge Two Sorted Lists.
Memory Usage: 13.1 MB, less than 5.06% of Python3 online submissions for Merge Two Sorted Lists.
Next challenges:
How could improve my solution?
python
asked 1 min ago
AliceAlice
1764
New contributor
Alice is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I tried to solve a merge two sorted list problem in leetcodes
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists.
Example:
Input: 1->2->4, 1->3->4
Output: 1->1->2->3->4->4
class Solution:
def mergeTwoLists(self, l1: ListNode, l2: ListNode) -> ListNode:
"""
Plan:
Compare l1 and l2 and merge the remainders
"""
l3_head = ListNode(0)
l3_cur = l3_head
while l1 and l2: #assert both exist
if l2.val < l1.val:
l3_cur.next = l2 #build l3's node
l2 = l2.next #this is i++
else:
l3_cur.next = l1
l1 = l1.next
l3_cur = l3_cur.next #find the next to build
if l1:
l3_cur.next = l1
if l2:
l3_cur.next = l2
return l3_head.next
I assumed this is a decent solution but got
>
Runtime: 56 ms, faster than 23.98% of Python3 online submissions for Merge Two Sorted Lists.
Memory Usage: 13.1 MB, less than 5.06% of Python3 online submissions for Merge Two Sorted Lists.
Next challenges:
How could improve my solution?
python
python
asked 1 min ago
AliceAlice
1764
New contributor
Alice is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 min ago
AliceAlice
1764
New contributor
Alice is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 min ago
AliceAlice
1764
New contributor
Alice is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 min ago
AliceAlice
1764
asked 1 min ago
AliceAlice
1764
1764
New contributor
Alice is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Alice is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Alice is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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