Leetcode Problem 557. Reverse Words in a String III

557. Reverse Words in a String III

Leetcode Solutions

Two Pointer Approach for In-Place Word Reversal

  1. Initialize lastSpaceIndex to -1 to track the end of the last word.
  2. Iterate over the string with an index i.
  3. When a space or the end of the string is encountered, set start to lastSpaceIndex + 1 and end to i - 1.
  4. Use two pointers to reverse the characters between start and end.
  5. Update lastSpaceIndex to the current index i.
  6. Repeat steps 3-5 until the end of the string is reached.
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Split and Reverse Approach

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