Walkover Web Solutions interview questions

The interview process at Walkover Web Solutions was smooth and well structured. It started with a basic screening round followed by a technical interview. In the technical round, questions were mainly focused on HTML, CSS, JavaScript fundamentals, and some basic problem solving. The interviewer also asked about my previous projects and how I approached them. Overall, the interview was moderate in difficulty and the interviewer was friendly and supportive throughout the process.

Use sliding window with hashmap tracking frequencies; expand right pointer, shrink when distinct elements exceed K, update maximum subarray sum continuously during traversal. 1. Longest Increasing Subsequence (LIS) Use dynamic programming or binary search with a tails array; iterate through elements, update positions using lower_bound, achieving O(n log n) time complexity for efficient subsequence length calculation. 2. Detect Cycle in Directed Graph Use DFS with recursion stack or Kahn’s algorithm; track visited and path nodes, if revisited in recursion stack, cycle exists, otherwise graph remains acyclic during traversal.