150+ questions. Master every core concept from Arrays to Dynamic Programming with full, explained answers.
Start with Arrays Search All DSA40+ Questions. Two Pointers, Sliding Window, Prefix Sums.
20+ Questions. Pointers, Reversal, Cycle Detection (Floyd's). (Placeholder)
25+ Questions. Traversals, Height, LCA, Kth Smallest. (Placeholder)
20+ Questions. BFS/DFS, Dijkstra, MST, Topological Sort. (Placeholder)
25+ Questions. Memoization, Tabulation, Knapsack, Longest Subsequence. (Placeholder)
15+ Questions. Binary Search, Merge/Quick Sort, Heap Sort. (Placeholder)
10+ Questions. Monotonic Stack, Queue using Stacks. (Placeholder)
15+ Questions. Permutations, Subsets, N-Queens. (Placeholder)
10+ Questions. Interval Scheduling, Coin Change (Greedy). (Placeholder)