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Given a list of n strings. Each string has length k. Return true if there’re 2 strings that only differ by 1 character, otherwise false. You can assume that all strings contain only lowercase English letters [a-z].

Example 1:

Input: [“abc”, “xyz”, “abd”]
Output: true
Explanation: “abc” and “abd” only differ by 1 character.

Example 2:

Input: [“abc”, “def”, “xyz”]
Output: false

Example 3:

Input: [“abcd”, “bbbb”, “abxd”, “cccc”]
Output: true

想问下楼主的时间线?是new grad吗?