Leetcode Problem 2074. Reverse Nodes in Even Length Groups

2074. Reverse Nodes in Even Length Groups

Leetcode Solutions

Iterative Group Reversal

  1. Initialize a dummy node pointing to the head of the list.
  2. Initialize variables to keep track of the current node, previous node, and the next group's head.
  3. Use a loop to iterate through the list, with an inner loop to process each group.
  4. Determine the length of the current group and whether it should be reversed.
  5. If the group length is even, reverse the group nodes.
  6. Update the pointers to connect the reversed group with the rest of the list.
  7. Continue to the next group and repeat the process.
  8. Return the new head of the modified list.
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Convert to Array and Reverse

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