Top 50 String Coding Problems for Interviews Last Updated : 21 Mar, 2024 Improve Improve Like Article Like Save Share Report Here is the collection of the Top 50 list of frequently asked interview questions on Strings. Problems in this Article are divided into three Levels so that readers can practice according to the difficulty level step by step. Level 1 Problems Solve Reverse words in a given string Solve Longest Common Prefix Solve Roman Number to Integer Solve Integer to Roman Solve Closest Strings Solve Divisible by 7 Solve Encrypt the String – II Solve Equal point in a string of brackets Solve Isomorphic Strings Solve Check if two strings are k-anagrams or not Solve Panagram Checking Solve Minimum Deletions Solve Number of Distinct Subsequences Solve Check if string is rotated by two places Solve Level 2 Problems Solve Implement Atoi Solve Validate an IP address Solve License Key Formatting Solve Find the largest word in dictionary Solve Equal 0,1, and 2 Solve Find and replace in String  Add Binary Strings Solve Sum of two large numbers Solve Multiply two strings Solve Look and say Pattern Solve Minimum times A has to be repeated to make B a Substring Solve Excel Sheet – I Solve Form a Palindrome Solve Find the N-th character Solve Next higher palindromic number using the same set of digits Solve Length of longest prefix suffix Solve Longest K unique characters substring Solve Smallest window in string containing all characters Solve Longest Palindromic Subsequence Solve Longest substring without repeating characters Solve Substrings of length k with k-1 distinct elements Solve Count number of substrings Solve Interleaved Strings Solve Print Anagrams together Solve Rank the permutation Solve A Special Keyboard Solve Level 3 Problems Solve Restrictive Candy Crush Solve Edit Distance Solve Search Pattern (KMP-Algorithm) Solve Search Pattern (Rabin-Karp Algorithm) Solve Search Pattern (Z-algorithm) Solve Shortest Common Supersequence Solve Number of words with K maximum distinct vowels Solve Longest substring to form a Palindrome Solve Longest Valid Parenthesis Solve Distinct Palindromic Substrings Solve Related Articles: Top 50 Array Coding Problems for Interviews Top 50 Tree Coding Problems for Interviews Top 50 Graph Coding Problems for Interviews Top 50 Dynamic Programming Coding Problems for Interviews Top 50 Sorting Coding Problems for Interviews Top 50 Searching Coding Problems for Interviews Top 50 Binary Search Tree Coding Problems for Interviews Some other important Tutorials: DSA Tutorial System Design Tutorial Software Development Roadmap Roadmap to become a Product Manager Learn SAP Learn SEO Recommended Track your progress and attempt this list on GfG Practice. Solve Problems Like Article Suggest improvement Previous Decode a string recursively encoded as count followed by substring Share your thoughts in the comments Add Your Comment Please Login to comment...