Check If String Is a Prefix of Array
Given a string s and an array of strings words, determine whether s is a prefix string of words.
A string s is a prefix string of words if s can be made by concatenating the first k strings in words for some positive k no larger than words.length.
Return true if s is a prefix string of words, or false otherwise.
Example 1
Input
s = "iloveleetcode", words = ["i","love","leetcode","apples"]Output
trues can be made by concatenating "i", "love", and "leetcode" together.
Example 2
Input
s = "iloveleetcode", words = ["apples","i","love","leetcode"]Output
falseIt is impossible to make s using a prefix of arr.
Constraints
- 1 <= words.length <= 100
- 1 <= words[i].length <= 20
- 1 <= s.length <= 1000
- words[i] and s consist of only lowercase English letters.