LEETCODEEasy

Remove Duplicates from Sorted List

풀이일 2026 · 08 · 13기록 0 ms · 58.3 MB원문 leetcode ↗

Linked List

문제

Given the head of a sorted linked list, delete all duplicates such that each element appears only once. Return the linked list sorted as well.

Example 1:

Input: head = [1,1,2]
Output: [1,2]

Example 2:

Input: head = [1,1,2,3,3]
Output: [1,2,3]

Constraints:

The number of nodes in the list is in the range [0, 300].
-100 <= Node.val <= 100
The list is guaranteed to be sorted in ascending order.

풀이 TypeScript

function deleteDuplicates(head: ListNode | null): ListNode | null {
    let curr = head;
    while (curr && curr.next) {
        if (curr.val === curr.next.val) {
            curr.next = curr.next.next;
        } else {
            curr = curr.next;
        }
    }
    return head;
}

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