Problems

3,848+ problems · 928 Easy · 2014 Medium · 906 Hard

Active:Premium· 755 results

Title	Solution	Practice	Difficulty	Companies	Topics
2604. Minimum Time to Eat All Grains	Solution	Solve	Hard	Confluent	Array Binary Search+2
2613. Beautiful Pairs	Solution	Solve	Hard	-	Array Divide and Conquer+4
2628. JSON Deep Equal	Solution	Solve	Medium	-
2632. Curry	Solution	Solve	Medium	-
2633. Convert Object to JSON String	Solution	Solve	Medium	Google
2636. Promise Pool	Solution	Solve	Medium	Uber
2638. Count the Number of K-Free Subsets	Solution	Solve	Medium	Amazon	Array Combinatorics+3
2647. Color the Triangle Red	Solution	Solve	Hard	-	Array Math
2655. Find Maximal Uncovered Ranges	Solution	Solve	Medium	Meta	Array Sorting
2664. The Knight’s Tour	Solution	Solve	Medium	Microsoft	Array Backtracking+1
2668. Find Latest Salaries	Solution	Solve	Easy	-	Database
2669. Count Artist Occurrences On Spotify Ranking List	Solution	Solve	Easy	-	Database
2674. Split a Circular Linked List	Solution	Solve	Medium	-	Linked List Two Pointers
2675. Array of Objects to Matrix	Solution	Solve	Hard	-
2676. Throttle	Solution	Solve	Medium	-
2686. Immediate Food Delivery III	Solution	Solve	Medium	-	Database
2687. Bikes Last Time Used	Solution	Solve	Easy	-	Database
2688. Find Active Users	Solution	Solve	Medium	-	Database
2689. Extract Kth Character From The Rope Tree	Solution	Solve	Easy	Google	Binary Tree Depth-First Search+1
2690. Infinite Method Object	Solution	Solve	Easy	-
2691. Immutability Helper	Solution	Solve	Hard	-
2692. Make Object Immutable	Solution	Solve	Medium	-
2700. Differences Between Two Objects	Solution	Solve	Medium	Couchbase+1
2701. Consecutive Transactions with Increasing Amounts	Solution	Solve	Hard	Amazon	Database
2702. Minimum Operations to Make Numbers Non-positive	Solution	Solve	Hard	Citadel+1	Array Binary Search
2714. Find Shortest Path with K Hops	Solution	Solve	Hard	Goldman Sachs	Graph Heap (Priority Queue)+1
2720. Popularity Percentage	Solution	Solve	Hard	-	Database
2728. Count Houses in a Circular Street	Solution	Solve	Easy	Google	Array Interactive
2737. Find the Closest Marked Node	Solution	Solve	Medium	-	Array Graph+2
2738. Count Occurrences in Text	Solution	Solve	Medium	-	Database
2743. Count Substrings Without Repeating Character	Solution	Solve	Medium	Oracle+1	Hash Table Sliding Window+1
2752. Customers with Maximum Number of Transactions on Consecutive Days	Solution	Solve	Hard	-	Database
2753. Count Houses in a Circular Street II	Solution	Solve	Hard	-
2754. Bind Function to Context	Solution	Solve	Medium	-
2755. Deep Merge of Two Objects	Solution	Solve	Medium	Valve
2756. Query Batching	Solution	Solve	Hard	-
2757. Generate Circular Array Values	Solution	Solve	Medium	-
2758. Next Day	Solution	Solve	Easy	-
2759. Convert JSON String to Object	Solution	Solve	Hard	MongoDB+1
2764. Is Array a Preorder of Some ‌Binary Tree	Solution	Solve	Medium	-	Binary Tree Depth-First Search+2
2773. Height of Special Binary Tree	Solution	Solve	Medium	-	Binary Tree Breadth-First Search+2
2774. Array Upper Bound	Solution	Solve	Easy	-
2775. Undefined to Null	Solution	Solve	Medium	-
2776. Convert Callback Based Function to Promise Based Function	Solution	Solve	Medium	-
2777. Date Range Generator	Solution	Solve	Medium	-
2782. Number of Unique Categories	Solution	Solve	Medium	Amazon	Counting Interactive+1
2783. Flight Occupancy and Waitlist Analysis	Solution	Solve	Medium	-	Database
2792. Count Nodes That Are Great Enough	Solution	Solve	Hard	-	Binary Tree Depth-First Search+2
2793. Status of Flight Tickets	Solution	Solve	Hard	-
2794. Create Object from Two Arrays	Solution	Solve	Easy	-