Zoho coding interviews evaluate a candidate's problem-solving skills, logical thinking, and coding proficiency through a wide range of programming challenges. This sheet provides a collection of the most frequently asked Zoho coding interview questions, categorized by difficulty level.
- Covers Zoho coding questions organized into Easy, Medium, and Hard difficulty levels.
- Includes optimized solutions with detailed explanations to improve coding efficiency and interview preparation.
Easy Level
- Reverse a String without using built-in functions
- Check whether a String is a Palindrome
- Count Vowels, Consonants, Digits, and Special Characters
- Find the Second Largest Element in an Array
- Remove Duplicate Characters from a String
- Check whether Two Strings are Anagrams
- Print the Fibonacci Series
- Find the GCD and LCM of Two Numbers
- Check whether a Number is an Armstrong Number
- Find the Missing Number in an Array
- Rotate an Array by K Positions
- Merge Two Sorted Arrays
- Find Frequency of Each Character in a String
- Find the Largest Word in a Sentence
- Sort an Array without using
Arrays.sort() - Binary Search
- Move All Zeros to the End of an Array
- Reverse Words in a Sentence
- Print Pascal's Triangle
- Find the Sum of Digits of a Number
Medium Level
- Longest Substring Without Repeating Characters
- Spiral Traversal of a Matrix
- Rotate a Matrix by 90 Degrees
- Print Matrix in Zigzag Order
- Leaders in an Array
- Product of Array Except Self
- Kadane's Algorithm (Maximum Subarray Sum)
- Next Greater Element
- Merge Overlapping Intervals
- Kth Largest Element in an Array
- Group Anagrams
- Implement an LRU Cache
- Detect a Cycle in a Linked List
- Reverse a Linked List in Groups of K
- Level Order Traversal of a Binary Tree
- Lowest Common Ancestor of a Binary Tree
- Number of Islands
- Coin Change Problem
- Longest Increasing Subsequence
- Word Search in a Matrix
Hard Level
- Sudoku Solver
- N-Queens Problem
- Word Boggle
- Trapping Rain Water
- Median of Two Sorted Arrays
- Merge K Sorted Linked Lists
- Edit Distance
- Serialize and Deserialize a Binary Tree
- Sliding Window Maximum
- Alien Dictionary
- Maximum Path Sum in a Binary Tree
- Wildcard Pattern Matching
- Palindrome Partitioning II
- Egg Dropping Puzzle
- Burst Balloons
- Rat in a Maze
- Knight's Tour Problem
- Graph Coloring Problem