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Leetcode 1768. Merge Strings Alternately | Step by step solution for beginners
- Merge two given strings word1 and word2 by adding letters alternately.
- If one string is longer than the other, append the additional letters to the end of the merged string.
- Increment pointers for each string and add characters alternately to the final result.
- Complexity: O(max(N, M)), O(N)
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