Solving Reorder List using Multiple techniques.

Problem

L0→Ln→L1→Ln-1 reorder.

Pattern

This problem demonstrates the Multiple techniques pattern.

Approach

Find middle, reverse second half, merge.

Solution 

  // Solution for Reorder List
// Pattern: Multiple techniques
// O(n) time

Complexity

O(n) time

Best Practices

  • Identify the pattern before coding — pattern recognition saves time
  • Handle edge cases: empty input, single element, duplicates
  • Use descriptive variable names even in timed interviews
  • Test with the provided examples plus one custom case