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674 B
674 B
Which Are In?
Given two arrays of strings a1 and a2 return a sorted array r in lexicographical order of the strings of a1 which are substrings of strings of a2.
Example 1:
a1 = ["arp", "live", "strong"]
a2 = ["lively", "alive", "harp", "sharp", "armstrong"]
returns ["arp", "live", "strong"]
Example 2:
a1 = ["tarp", "mice", "bull"]
a2 = ["lively", "alive", "harp", "sharp", "armstrong"]
returns []
Notes:
Arrays are written in "general" notation. See "Your Test Cases" for examples in your language. In Shell bash a1 and a2 are strings. The return is a string where words are separated by commas. Beware: r must be without duplicates.