Important String Problems : Strings are everywhere in programming — from user input to text processing and coding interviews. Understanding common string problems will sharpen your problem-solving skills and prepare you for real-world coding challenges. Below are some fundamental string problems explained simply:
Important String Problems :
- Reverse a String
- Check whether a String is Palindrome or not
- Find Duplicate characters in a string
- Why strings are immutable in Java?
- Write a Code to check whether one string is a rotation of another
- Write a Program to check whether a string is a valid shuffle of two strings or not
- Count and Say problem
- Write a program to find the longest Palindrome in a string (Longest palindromic Substring)
- Find Longest Recurring Subsequence in String
- Print all Subsequences of a string
- Print all the permutations of the given string
- Split the Binary string into two substrings with equal 0’s and 1’s
- Word Wrap Problem [VERY IMP]
- EDIT Distance [Very Imp]
- Find next greater number with same set of digits [Very Very IMP]
- Balanced Parenthesis problem [Imp]
- Word break Problem [Very Imp]
- Rabin Karp Algorithm
- KMP Algorithm
- Convert a Sentence into its equivalent mobile numeric keypad sequence
- Minimum number of bracket reversals needed to make an expression balanced
- Count All Palindromic Subsequences in a given String
- Count of number of given string in 2D character array
- Search a Word in a 2D Grid of characters
- Boyer Moore Algorithm for Pattern Searching
- Converting Roman Numerals to Decimal
- Longest Common Prefix
- Number of flips to make binary string alternate
- Find the first repeated word in string
- Minimum number of swaps for bracket balancing
- Find the longest common subsequence between two strings
- Program to generate all possible valid IP addresses from given string
- Write a program to find the smallest window that contains all characters of string itself
- Rearrange characters in a string such that no two adjacent are same
- Minimum characters to be added at front to make string palindrome
- Given a sequence of words, print all anagrams together
- Find the smallest window in a string containing all characters of another string
- Recursively remove all adjacent duplicates
- String matching where one string contains wildcard characters
- Function to find Number of customers who could not get a computer
- Transform One String to Another using Minimum Number of Given Operations
- Check if two given strings are isomorphic to each other
- Recursively print all sentences that can be formed from list of word lists