Panel-ready DSA interview set questions for freshers and experienced developers. Practice at Coding Cadre in Faridabad, or Online from Delhi NCR.
BFS uses a queue and explores level by level — good for shortest path in unweighted graphs.
Open the full page for Why, Steps, Example and Key takeaway.
Quicksort is often faster in practice with good pivot choice and better cache behavior, average O(n log n).
Open the full page for Why, Steps, Example and Key takeaway.
Overlapping subproblems plus optimal substructure.
Open the full page for Why, Steps, Example and Key takeaway.
DP solves a problem by saving answers to overlapping subproblems so we never recompute them.
Open the full page for Why, Steps, Example and Key takeaway.
It needs non-negative weights.
Open the full page for Why, Steps, Example and Key takeaway.
Hash map to nodes plus doubly linked list for recency.
Open the full page for Why, Steps, Example and Key takeaway.
Restate the problem, confirm examples, outline complexity, then code in small pieces.
Open the full page for Why, Steps, Example and Key takeaway.
DFS colors or recursion stack tracking.
Open the full page for Why, Steps, Example and Key takeaway.