Find All Anagrams in a String
Given a string original
and a string check
, find the starting index of all substrings
of original
that is an anagram of check
. The output must be sorted in ascending order.
Parameters
original
: A stringcheck
: A string
Result
- A list of integers representing the starting indices of all anagrams of
check
.
Examples
Example 1
Input: original = "cbaebabacd"
, check = "abc"
Output: [0, 6]
Explanation: The substring from 0
to 2
, "cba"
, is an anagram of "abc"
, and so is
the substring from 6
to 8
, "bac"
.
Example 2
Input: original = "abab"
, check = "ab"
Output: [0, 1, 2]
Explanation: All substrings with length 2
from "abab"
are anagrams of "ab"
.
Constraints
1 <= len(original), len(check) <= 10^5
- Each string consists of only lowercase characters in the standard English alphabet.