package
0.0.0-20241221191246-b80a13d7bbe0
Repository: https://github.com/yvv4git/go-algorithms.git
Documentation: pkg.go.dev

# README

438. Find All Anagrams in a String

Level - medium

Task

Given two strings s and p, return an array of all the start indices of p's anagrams in s. You may return the answer in any order.

An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once.

Объяснение

Задача предлагает найти все анаграммы (слова, состоящие из одних и тех же букв) в данной строке.

Для решения этой задачи, можно использовать словарь (или хеш-таблицу) для отслеживания количества вхождений каждого символа в строке p (которая является искомой анаграммой) и словарь для отслеживания количества вхождений символов в текущем окне строки s.

Example 1:

Input: s = "cbaebabacd", p = "abc"
Output: [0,6]
Explanation:
The substring with start index = 0 is "cba", which is an anagram of "abc".
The substring with start index = 6 is "bac", which is an anagram of "abc".

Example 2:

Input: s = "abab", p = "ab"
Output: [0,1,2]
Explanation:
The substring with start index = 0 is "ab", which is an anagram of "ab".
The substring with start index = 1 is "ba", which is an anagram of "ab".
The substring with start index = 2 is "ab", which is an anagram of "ab".

Constraints:

  • 1 <= s.length, p.length <= 3 * 10^4
  • s and p consist of lowercase English letters.