Sign in Subscribe

Topic

string

A collection of 40 issues

Leetcode - Camelcase Matching Solution

A query word matches a given pattern if we can insert lowercase letters to the pattern word so that it equals the query. (We may insert each character at any position, and may insert 0 characters.) Given a list of queries, and a pattern, return an answer list of booleans,

Leetcode - Determine if String Halves Are Alike Solution

You are given a string s of even length. Split this string into two halves of equal lengths, and let a be the first half and b be the second half. Two strings are alike if they have the same number of vowels ('a', 'e', '

Leetcode - Count the Number of Consistent Strings Solution

You are given a string allowed consisting of distinct characters and an array of strings words. A string is consistent if all characters in the string appear in the string allowed. Return the number of consistent strings in the array words. Example 1: Input: allowed = "ab", words = ["

Leetcode - Check If Two String Arrays are Equivalent Solution

Given two string arrays word1 and word2, return true if the two arrays represent the same string, and false otherwise. A string is represented by an array if the array elements concatenated in order forms the string. Example 1: Input: word1 = ["ab", "c"], word2 = ["a&

Leetcode - Maximum Nesting Depth of the Parentheses Solution

A string is a valid parentheses string (denoted VPS) if it meets one of the following: * It is an empty string "", or a single character not equal to "(" or ")", * It can be written as AB (A concatenated with B), where A and B are

Leetcode - Make The String Great Solution

Given a string s of lower and upper case English letters. A good string is a string which doesn't have two adjacent characters s[i] and s[i + 1] where: * 0 <= i <= s.length - 2 * s[i] is a lower-case letter and s[i + 1]

Leetcode - Reformat Date Solution

Given a date string in the form Day Month Year, where: * Day is in the set {"1st", "2nd", "3rd", "4th", ..., "30th", "31st"}. * Month is in the set {"Jan", "Feb", "Mar", "Apr&

Leetcode - Making File Names Unique Solution

Given an array of strings names of size n. You will create n folders in your file system such that, at the ith minute, you will create a folder with the name names[i]. Since two files cannot have the same name, if you enter a folder name which is

Leetcode - Rearrange Words in a Sentence Solution

Given a sentence text (A sentence is a string of space-separated words) in the following format: * First letter is in upper case. * Each word in text are separated by a single space. Your task is to rearrange the words in text such that all words are rearranged in an increasing

Leetcode - Check If a String Can Break Another String Solution

Given two strings: s1 and s2 with the same size, check if some permutation of string s1 can break some permutation of string s2 or vice-versa. In other words s2 can break s1 or vice-versa. A string x can break string y (both of size n) if x[i] >