Toolliyo Practice

Problems explorer

Browse by topic · auto-judge · company sheets · roadmaps — not just a problem dump.

2100 problems in this topic

# Title Topics Acceptance Pts Difficulty
601 Cheapest Flights Within K Stops — 30 Medium Solve
602 Climbing Stairs — 20 Easy Solve
603 Coin Change — 30 Medium Solve
604 Contains Duplicate — 20 Easy Solve
605 Copy List with Random Pointer — 30 Medium Solve
606 Count Good Nodes in Binary Tree — 30 Medium Solve
607 Daily Temperatures — 30 Medium Solve
608 Design Add and Search Words Data Structure — 30 Medium Solve
609 Detect Squares — 30 Medium Solve
610 Diameter of Binary Tree — 20 Easy Solve
611 Generate Parentheses — 30 Medium Solve
612 Graph Valid Tree — 30 Medium Solve
613 Group Anagrams — 30 Medium Solve
614 House Robber II — 30 Medium Solve
615 Implement Trie (Prefix Tree) — 30 Medium Solve
616 Insert Interval — 30 Medium Solve
617 Jump Game — 30 Medium Solve
618 Jump Game II — 30 Medium Solve
619 Kth Largest Element in an Array — 30 Medium Solve
620 LRU Cache — 30 Medium Solve
621 LRU Cache — 30 Medium Solve
622 Letter Combinations of a Phone Number — 30 Medium Solve
623 Linked List Cycle — 20 Easy Solve
624 Longest Increasing Path in a Matrix — 40 Hard Solve
625 Longest Palindromic Substring — 30 Medium Solve
626 Longest Substring Without Repeating Characters — 30 Medium Solve
627 Longest Substring Without Repeating Characters — 30 Medium Solve
628 Maximum Product Subarray — 30 Medium Solve
629 Maximum Subarray — 30 Medium Solve
630 Median of Two Sorted Arrays — 40 Hard Solve
631 Meeting Rooms — 20 Easy Solve
632 Meeting Rooms II — 30 Medium Solve
633 Merge Intervals — 30 Medium Solve
634 Merge Intervals — 30 Medium Solve
635 Merge k Sorted Lists — 40 Hard Solve
636 Min Cost Climbing Stairs — 20 Easy Solve
637 Minimum Window Substring — 40 Hard Solve
638 Missing Number — 20 Easy Solve
639 N-Queens — 40 Hard Solve
640 Number of 1 Bits — 20 Easy Solve
641 Number of Connected Components in an Undirected Graph — 30 Medium Solve
642 Pacific Atlantic Water Flow — 30 Medium Solve
643 Partition Equal Subset Sum — 30 Medium Solve
644 Plus One — 20 Easy Solve
645 Product of Array Except Self — 30 Medium Solve
646 Reconstruct Itinerary — 40 Hard Solve
647 Reconstruct Itinerary — 40 Hard Solve
648 Reorder List — 30 Medium Solve
649 Reverse Bits — 20 Easy Solve
650 Rotting Oranges — 30 Medium Solve
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