Merge Two Sorted Lists
Merge two sorted lists into one sorted list. Output as space-separated values.
Example:
1,2,4 1,3,4
1 1 2 3 4 4
- The problem starts with two sorted lists:
[1, 2, 4]and[1, 3, 4]. - The lists are merged by comparing elements from each list and adding the smaller one to the result list, resulting in a single sorted list:
[1, 1, 2, 3, 4, 4]. - The merged list is then output as space-separated values, giving the final output:
1 1 2 3 4 4. - No further calculations are needed, as the problem only requires a simple merge and sort operation.
Constraints:
- 0 <= number of nodes <= 50
- -100 <= Node.val <= 100
Background Knowledge
The problem "Merge Two Sorted Lists" involves working with linked lists, a fundamental data structure in computer science. A linked list is a sequence of nodes, where each node contains a value and a reference (i.e., a "link") to the next node in the sequence. In this case, we're dealing with sorted linked lists, meaning that the values in each list are arranged in ascending order. To solve this problem, you should be familiar with basic linked list operations, such as traversing a list and inserting or deleting nodes.
Understanding pointers is also crucial, as they are used to reference and manipulate nodes in the linked list. In the context of linked lists, pointers are used to keep track of the current node and to move to the next node in the sequence. You should be comfortable with the concept of a head pointer, which points to the first node in the list, and a next pointer, which points to the next node in the sequence.
The problem requires merging two sorted lists into one sorted list, which involves comparing values from both lists and arranging them in the correct order. This process involves using conditional statements and loops to iterate through both lists and create a new sorted list. The output should be a space-separated list of values, which can be achieved using basic string manipulation techniques.
Continue the full explanation
You're reading the free preview. Unlock the complete walkthrough, the code editor, test runner and reference solution with Premium.
Editor locked
The code editor is locked for Pro problems. It is only available for free problems. Please upgrade to gain access to the code editor for all problems.