🧠 Before you code — what pattern fits?
You are given two strings word1 and word2. Merge the strings by adding letters in alternating order, starting with word1. If a string is longer than the other, append the additional letters onto the end of the merged string.
Return the merged string.
merge("abc","pqr") → "apbqcr"
merge("ab","pqrs") → "apbqrs"
🎬 Video explanation · NeetCodeIO
Your solution runs against 3 unit tests, including edge and large-value cases.
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Test console · 3 unit tests
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