Explore how to sort a linked list by applying an optimal algorithm that runs in O(n log n) time and uses O(log n) space. This lesson guides you through understanding the problem constraints and implementing a solution to improve your coding interview skills.
Statement
Given the head of a linked list, return the list after sorting it in ascending order.
Constraints:
The number of nodes in the list is in the range [0,1000].
−103≤Node.value≤103
Examples
Understand the problem
Let’s take a moment to make sure you’ve correctly understood the problem. The quiz below helps you check if you’re solving the correct problem:
Sort List
1.
What is the output if the following linked list is given as input?
357 → 98 → 12 → 788 → 45 → 121
A.
12 → 45 → 98 → 788 → 121 → 357
B.
12 → 45 → 98 → 121 → 788 → 357
C.
12 → 45 → 98 → 121 → 357 → 788
D.
12 → 98 → 45 → 121 → 357 → 788
1 / 3
Try it yourself
Implement your solution in the following coding playground.
An optimal solution to this problem runs in O(n logn) time and takes O(lgn) space.
Explore how to sort a linked list by applying an optimal algorithm that runs in O(n log n) time and uses O(log n) space. This lesson guides you through understanding the problem constraints and implementing a solution to improve your coding interview skills.
Statement
Given the head of a linked list, return the list after sorting it in ascending order.
Constraints:
The number of nodes in the list is in the range [0,1000].
−103≤Node.value≤103
Examples
Understand the problem
Let’s take a moment to make sure you’ve correctly understood the problem. The quiz below helps you check if you’re solving the correct problem:
Sort List
1.
What is the output if the following linked list is given as input?
357 → 98 → 12 → 788 → 45 → 121
A.
12 → 45 → 98 → 788 → 121 → 357
B.
12 → 45 → 98 → 121 → 788 → 357
C.
12 → 45 → 98 → 121 → 357 → 788
D.
12 → 98 → 45 → 121 → 357 → 788
1 / 3
Try it yourself
Implement your solution in the following coding playground.
An optimal solution to this problem runs in O(n logn) time and takes O(lgn) space.