leetcode-array-to-linked-list

convert an array to a linked list

tags: learning programming leetcode

content

• when converting
• array: nums = [1, 2, 3, 2]
• we need to treat each element of the array as a index, value pair
  • where index is the value of the ListNode, and value is the next ListNode it points to

    leetcode-array-to-linked-list 2026-01-16 15.56.20.excalidraw

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    [1, 2, 3, 2, 2]

    there’re three 2s in the array, therefore, there’re three nodes pointing to the node with value 2

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reference

• neetcode