Leetcode daily # 18.05.2023

[1768. Merge Strings Alternately]

18.05.2023

1768. Merge Strings Alternately easy

fun mergeAlternately(word1: String, word2: String): String =
(word1.asSequence().zip(word2.asSequence()) { a, b -> "$a$b" } +
word1.drop(word2.length) + word2.drop(word1.length))
.joinToString("")

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Intuition

Do what is asked.
Handle the tail.

Approach

• we can use sequence zip operator

• for the tail, consider drop

Complexity

• Time complexity:
  O(n)

• Space complexity:
  O(n)