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Odd Even Linked List #98

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Tracked by #101
fkdl0048 opened this issue Oct 15, 2024 · 0 comments
Closed
Tracked by #101

Odd Even Linked List #98

fkdl0048 opened this issue Oct 15, 2024 · 0 comments
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fkdl0048 commented Oct 15, 2024

/**
 * Definition for singly-linked list.
 * struct ListNode {
 *     int val;
 *     ListNode *next;
 *     ListNode() : val(0), next(nullptr) {}
 *     ListNode(int x) : val(x), next(nullptr) {}
 *     ListNode(int x, ListNode *next) : val(x), next(next) {}
 * };
 */
class Solution {
public:
    ListNode* oddEvenList(ListNode* head) {
        if (head == nullptr || head->next == nullptr) {
            return head;
        }

        ListNode* odd = head;
        ListNode* even = head->next;
        ListNode* evenHead = even;

        while(even != nullptr && even->next != nullptr) {
            odd->next = even->next;
            odd = odd->next;
            even->next = odd->next;
            even = even->next;
        }

        odd->next = evenHead;

        return head;
    }
};
  • 단일 연결 리스트에서 짝수와 홀수로 분리하여 연결리스트 정렬하는 문제
  • 단순 포인터 개념을 제대로 이해해야 함
@fkdl0048 fkdl0048 mentioned this issue Oct 15, 2024
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@fkdl0048 fkdl0048 self-assigned this Oct 15, 2024
@fkdl0048 fkdl0048 added this to Todo Oct 15, 2024
@github-project-automation github-project-automation bot moved this to Todo in Todo Oct 15, 2024
@fkdl0048 fkdl0048 added this to the LeetCode milestone Oct 15, 2024
@fkdl0048 fkdl0048 moved this from Todo to In Progress in Todo Oct 15, 2024
@github-project-automation github-project-automation bot moved this from In Progress to Done in Todo Oct 15, 2024
@fkdl0048 fkdl0048 reopened this Oct 15, 2024
@github-project-automation github-project-automation bot moved this from Done to Todo in Todo Oct 15, 2024
@github-project-automation github-project-automation bot moved this from Todo to Done in Todo Oct 15, 2024
@fkdl0048 fkdl0048 reopened this Oct 15, 2024
@github-project-automation github-project-automation bot moved this from Done to Todo in Todo Oct 15, 2024
@github-project-automation github-project-automation bot moved this from Todo to Done in Todo Oct 15, 2024
@fkdl0048 fkdl0048 reopened this Oct 15, 2024
@github-project-automation github-project-automation bot moved this from Done to Todo in Todo Oct 15, 2024
@github-project-automation github-project-automation bot moved this from Todo to Done in Todo Oct 15, 2024
@fkdl0048 fkdl0048 mentioned this issue Oct 15, 2024
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