LeetCode Implement strStr()を解いてみた

問題

https://leetcode.com/problems/implement-strstr/

解いた

# @param {String} haystack
# @param {String} needle
# @return {Integer}
def str_str(haystack, needle)
    return -1 unless haystack.include? needle 
    
    haystack.index(needle) 
end

結果