9 lines
423 B
Markdown
9 lines
423 B
Markdown
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# 17. Letter Combinations of a Phone Number
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[Leetcode](https://leetcode.com/problems/letter-combinations-of-a-phone-number/description/)
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Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent.
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Return the answer in any order.
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A mapping of digits to letters (just like on the telephone buttons) is given below. Note that 1 does not map to any letters.
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