String Interview Questions Archives

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Difficulty	Question Title	Company Name	Category
Medium	Scramble String	Amazon Fanatics Samsung	string
Easy	Valid Anagrams	Amazon Goldman Sachs Google Microsoft Nagarro	string
Medium	Group Anagrams	Amazon Facebook Google Microsoft	string
Hard	Integer to English words	Amazon Facebook Microsoft Oracle	string
Hard	Smallest Good Base		string
	Minimum insertions to form a palindrome with permutations allowed		string
	Longest Substring Without Repeating Characters		string
	Form minimum number from given sequence		string
Medium	Delete consecutive same words in a sequence	Factset	string
Hard	Text Justification	Amazon Coursera Google Indeed LinkedIn Microsoft Pinterest Snapchat	string
Easy	Reverse individual words	Amazon	string
	Arrange given numbers to form the biggest number		string
Easy	Reverse Integer	MakeMyTrip MAQ	string
Easy	Reverse words in a string	Accolite Adobe Amazon Cisco Goldman Sachs MakeMyTrip MAQ Microsoft Morgan Stanley Paytm PayU SAP Labs Wipro Zoho	string
Easy	Reverse a String	MAQ o9 solutions TCS	string
Easy	Convert String To Int	MAQ	string
Hard	Shortest Palindrome	Amazon Delhivery Factset	string
	Reverse Bits		string
	Edit Distance		string
Hard	Substring With Concatenation Of All Words	Amazon DE Shaw	string
Medium	Top K Frequent Words	Accolite Fourkites	string
Medium	Expression Contains Redundant Bracket or Not	Amazon Paytm	string
Medium	Zigzag Conversion	PayPal	string
Easy	Valid Palindrome	MAQ Nokia o9 solutions	string
	Valid Parenthesis String		string
	Next Permutation		string
	Repeated Substring Pattern		string
	Letter Case Permutation		string
	Longest Common Prefix using Sorting		string
	Word Pattern		string
	Regular Expression Matching		string
	Reorganize String		string
	String Compression		string
	Valid Parentheses		string
	Longest Common Prefix using Trie		string
	Valid Number		string
	Find the Closest Palindrome number		string
	Count and Say		string
	Find unique character in a string		string
	Integer to Roman		string
	Rabin Karp Algorithm		string
	Isomorphic Strings		string
	String comparison containing wildcards		string
	Check whether strings are k distance apart or not		string
	Program to toggle all characters in a string		string
	Check length of a string is equal to the number appended at its last		string
	Generate all binary strings without consecutive 1’s		string
	Check if all rows of a matrix are circular rotations of each other		string
	Sort a string according to another string		string
	Check if string can become empty by recursively deleting given sub-string		string
	Smallest palindrome after replacement		string
	Check if string follows order of characters by a pattern or not		string
	split-four-distinct-strings		string
	Even sub-string count		string
	Reverse string without temporary variable		string
	Recursive Palindrome check		string
	Minimum number of characters to be removed to make a binary string alternate		string
	Print all palindromic partitions of a string		string
	Count of character pairs at same distance as in english alphabets		string
	Minimum characters to be added at front to make string palindrome		string
	Convert a string that is repetition of a substring of length k		string
	Nth character in Concatenated Decimal string		string
	Kth Non-repeating character		string
	Compare two version numbers		string
	Remove minimum characters so that two strings become anagrams		string
	Generate all binary strings from given pattern		string
	Print all possible ways to break a string in bracket form		string
	Caesar Cipher		string
	Longest common subsequence withpermutations		string
	Perfect reversible string		string
	Longest palindrome can be formed by removing or rearranging characters		string
	Longest common prefix (word by word)		string
	Longest common prefix (Character by character)		string
	Permutations (STL)		string
	Calculate sum of all numbers present in a string		string
	Longest Common Prefix (Using Divide and Conquer)		string
	Lower Case To Upper Case		string
	Longest Common Prefix (Using Biary Search)		string
	Print shortest path to print a string on screen		string
	Remove Extra Spaces from a string		string
	Change gender of a given string		string
	Count number of substrings with k distinct characaters		string
	Removing spaces from a string using stringstream		string
	PANGRAM CHECK		string
	Repeated subsequence of length 2 or more		string
	Palindrome permutations of a string		string
	Split a string		string
	1`s and 2`s complement of binary number		string
	Longest Common Extension		string
	Convert string1 to string2 in one edit		string
	Find First non-repeating character in a string		string
	Remove recurring digits in a given number		string
	Recursively print all the sentences that can be formed from list of word lists		string
	Online algorithm for checking palindrome in a stream		string
	Check if two given strings are isomorphic to each other		string
	Length of longest valid substring		string
	Program to add two binary digits		string
	Recursive Implementation of atoi()		string
	Reverse a string without affecting special characters		string
	Recursive function to do substring search		string
	Print Longest common subsequence		string
	Rotate string to get lexicographically minimum string		string
	Number of sub-strings which recursively add up to 9		string
	Palindrome string (number)		string
	Print all possible words from phone digits		string
	Shortest Superstring Problem		string
	Transform one string to another using minimum number of given operations		string
	Print string of odd length in ‘X’ format		string
	Minimum insertions to form a shortest palindrome		string
	print all palindromic partitions		string
	Check rearranged string can form a palindrome		string
	Palindromes in a given range		string
	String(represents an integer) to value		string
	Count the number of words		string
	Print all anagrams together in a sequence of words		string
	Lexicographic rank of string		string
	Remove spaces from a string		string
	Find, second, frequent, character		string
	Find the second most frequent character		string
	Check if a given string is a rotation of a palindrome		string
	Sort an array of strings		string
	Recursively remove all adjacent duplicates		string
	Remove ‘b’ and ‘ac’ from a given string		string
	wildcard character matching		string
	Longest Palindromic Substring		string
	Given string is interleaving of two other strings or not		string
	Print all permutations with repetition		string
	Run length encoding		string
	List items containing all characters of a given word		string
	Write a program to print all permutations of a given string		string
	Check whether two strings are anagram of each other		string
	Print all interleavings of given two strings		string
	Print all duplicates in the input string		string
	A Program to check if strings are rotations of each other or not		string
	Given a string find its first non-repeating character		string
	Reverse words in a given string		string
	Find the smallest window in a string containing all characters of another string		string
	Divide a string in N equal parts		string
	Print Reverse of a string (Recursion)		string
	Remove characters from first string which are in second		string
	Sorting the array of strings		string
	Remove duplicates from a string		string
	Concatenation of two strings		string
	Reverse a String		string
	Most repeating character in a string		string

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