find-the-index-of-the-first-occurrence-in-a-string_28.py

# Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.

# Example 1:

# Input: haystack = "sadbutsad", needle = "sad"
# Output: 0
# Explanation: "sad" occurs at index 0 and 6.
# The first occurrence is at index 0, so we return 0.
# Example 2:

# Input: haystack = "leetcode", needle = "leeto"
# Output: -1
# Explanation: "leeto" did not occur in "leetcode", so we return -1.

# ---------------------------------------Runtime 34 ms Beats 80.73% Memory 16.2 MB Beats 39.21%---------------------------------------


class Solution:
    def strStr(self, haystack: str, needle: str) -> int:
        return haystack.find(needle)