Tag: string

All the problems with the tag "string".

• Leetcode 2781 - Length of the Longest Valid Substring

  • amazon
  •  string
  •  dynamic-programming

  Given a string and an array of forbidden substrings, find the length of the longest valid substring of the string.

• LeetCode 125 - Valid Palindrome

  • facebook
  • yandex
  • adobe
  •  two-pointers
  •  string

  Determine if a given string is a palindrome, considering only alphanumeric characters and ignoring cases.

• Leetcode 271 - Encode and Decode Strings

  • facebook
  • amazon
  • google
  •  string
  •  design
  •  premium

  Design an algorithm to encode a list of strings into a single string and decode it back to the list, working with any set of characters.

• LeetCode 2405 - Optimal Partition of String

  • amazon
  • microsoft
  •  string
  •  greedy

  Given a string, partition it into substrings such that each substring contains unique characters. Find the minimum number of such substrings.

• Leetcode 49 - Group Anagrams

  • amazon
  • yandex
  • microsoft
  •  hash-table
  •  string
  •  sorting

  Given an array of strings, group anagrams together. An anagram is a word formed by rearranging the letters of a different word, using all original letters exactly once.

• Leetcode 567 - Permutation in String

  • adobe
  • amazon
  •  string
  •  hash-table
  •  two-pointers

  Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.