Problem · String
Find the Substring
Learn this problemProblem statement
Given s and x, determine the zero-based index of the first occurrence of x in s.
s consists of lowercase letters in the range ascii[a-z].
x consists of lowercase letters and may also contain a single wildcard character, *, that represents any one character.
Function
firstOccurrence(s: String, x: String) → int
Complete the function firstOccurrence in the editor below. The function must return an integer denoting the zero-based index of the first occurrence of string x in s. If x is not in s, return -1 instead.
firstOccurrence has the following parameter(s):
- string
s: a string of lowercase letters - string
x: a string of lowercase letters which may contain 1 instance of the wildcard character*
: 𓏲🐋 ๋࣭ Credit to Rachel ࣪ ˖✩࿐࿔ 🌊
Examples
Example 1
s = "xabcdey"x = "ab*de"return = 1
Constraints
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