#1309
Decrypt String from Alphabet to Integer Mapping
newbie · 170 · lc easy +15 · verified · 80.6% accepted · 1,608 likes · top 92%
Description
Decode the string s (composed of digit characters and '#') into lowercase letters using this scheme:
- A single digit '1'–'9' maps to letters 'a'–'i'.
- A two-digit number followed by '#' (e.g., '10#'–'26#') maps to letters 'j'–'z'.
Return the decoded string. The input always has a unique valid decoding.
Example 1:
Input: s = "10#11#12"
Output: "jkab"
Explanation: "j" -> "10#" , "k" -> "11#" , "a" -> "1" , "b" -> "2".
Example 2:
Input: s = "1326#"
Output: "acz"
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