CODING INTERVIEW PROBLEM - LETTER COMBINATIONS OF A PHONE NUMBER (LeetCode 17)
Link to problem: https://leetcode.com/problems/letter-...
Intuition: Using recursion to model arbitrarily nested loops, each loop will plant all of the possibilities for which letter could represent a digit. For each of the "possibilities" where a number has been placed, it will recursively call itself to effectively nest another loop and explore the nested possibilities for the next digit(s)
SOCIAL
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