DSA Interview Questions
Two Sum
What is Two Sum, and how do you solve it in O(n) time? — spoken sample answer for Indian interviews.
View sample →Binary Search
Explain Binary Search and when you should not use it — spoken sample answer for Indian interviews.
View sample →Sliding Window
What is the Sliding Window pattern? Give a problem where you would use it — spoken sample answer for Indian interviews.
View sample →BFS and DFS
How do BFS and DFS differ, and when do you use each? — spoken sample answer for Indian interviews.
View sample →Topological Sort
What is a topological sort, and where is it used? — spoken sample answer for Indian interviews.
View sample →Cycle Detection
How do you detect a cycle in a linked list? — spoken sample answer for Indian interviews.
View sample →Kth Largest
What is a heap, and how do you find the Kth largest element? — spoken sample answer for Indian interviews.
View sample →Knapsack and Climbing Stairs
Explain Dynamic Programming with an example (climbing stairs or 0/1 knapsack) — spoken sample answer for Indian interviews.
View sample →Validate BST
How do you validate a Binary Search Tree? — spoken sample answer for Indian interviews.
View sample →Lowest Common Ancestor
How would you find the lowest common ancestor (LCA) in a binary tree? — spoken sample answer for Indian interviews.
View sample →Complexity Comparison
What is the time and space complexity of common sorting algorithms? — spoken sample answer for Indian interviews.
View sample →Duplicates and Second Highest
How do you find duplicates in an array, and how do you find the second-highest number? — spoken sample answer for Indian interviews.
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