Problems

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

Title	Solution	Practice	Difficulty	Companies	Topics
3644. Maximum K to Sort a Permutation	Solution	Solve	Medium	Amazon	Array Bit Manipulation
3610. Minimum Number of Primes to Sum to Target	Solution	Solve	Medium	Amazon	Array Dynamic Programming+2
3628. Maximum Number of Subsequences After One Inserting	Solution	Solve	Medium	De Shaw	Dynamic Programming Greedy+2
3669. Balanced K-Factor Decomposition	Solution	Solve	Medium	Amazon+1	Backtracking Math+1
3755. Find Maximum Balanced XOR Subarray Length	Solution	Solve	Medium	-	Array Bit Manipulation+2
3648. Minimum Sensors to Cover Grid	Solution	Solve	Medium	Amazon+3	Math
3639. Minimum Time to Activate String	Solution	Solve	Medium	Amazon	Array Binary Search
3624. Number of Integers With Popcount-Depth Equal to K II	Solution	Solve	Hard	-	Array Binary Indexed Tree+2
3614. Process String with Special Operations II	Solution	Solve	Hard	Google	Simulation String
3665. Twisted Mirror Path Count	Solution	Solve	Medium	Google+1	Array Dynamic Programming+1
3621. Number of Integers With Popcount-Depth Equal to K I	Solution	Solve	Hard	-	Bit Manipulation Combinatorics+2
3618. Split Array by Prime Indices	Solution	Solve	Medium	-	Array Math+1
3595. Once Twice	Solution	Solve	Medium	-	Array Bit Manipulation
3606. Coupon Code Validator	Solution	Solve	Easy	Google	Array Hash Table+2
3629. Minimum Jumps to Reach End via Prime Teleportation	Solution	Solve	Medium	Uber	Array Breadth-First Search+3
3612. Process String with Special Operations I	Solution	Solve	Medium	Amazon	Simulation String
3615. Longest Palindromic Path in Graph	Solution	Solve	Hard	-	Bit Manipulation Bitmask+3
3632. Subarrays with XOR at Least K	Solution	Solve	Hard	-	Array Bit Manipulation+2
3690. Split and Merge Array Transformation	Solution	Solve	Medium	Meta	Array Breadth-First Search+1
3603. Minimum Cost Path with Alternating Directions II	Solution	Solve	Medium	-	Array Dynamic Programming+1
3596. Minimum Cost Path with Alternating Directions I	Solution	Solve	Medium	-	Brainteaser Math
3581. Count Odd Letters from Number	Solution	Solve	Easy	-	Counting Hash Table+2
3609. Minimum Moves to Reach Target in Grid	Solution	Solve	Hard	Bloomberg	Math
3605. Minimum Stability Factor of Array	Solution	Solve	Hard	Amazon	Array Binary Search+4
3620. Network Recovery Pathways	Solution	Solve	Hard	-	Array Binary Search+5
3622. Check Divisibility by Digit Sum and Product	Solution	Solve	Easy	-	Math
3604. Minimum Time to Reach Destination in Directed Graph	Solution	Solve	Medium	-	Graph Heap (Priority Queue)+1
3670. Maximum Product of Two Integers With No Common Bits	Solution	Solve	Medium	-	Array Bit Manipulation+1
3591. Check if Any Element Has Prime Frequency	Solution	Solve	Easy	-	Array Counting+3
3599. Partition Array to Minimize XOR	Solution	Solve	Medium	Google	Array Bit Manipulation+2
3602. Hexadecimal and Hexatrigesimal Conversion	Solution	Solve	Easy	Zopsmart	Math String
3571. Find the Shortest Superstring II	Solution	Solve	Easy	-	String
3593. Minimum Increments to Equalize Leaf Paths	Solution	Solve	Medium	Google+1	Array Depth-First Search+2
3608. Minimum Time for K Connected Components	Solution	Solve	Medium	Amazon+1	Binary Search Graph+2
3589. Count Prime-Gap Balanced Subarrays	Solution	Solve	Medium	Google	Array Math+4
3590. Kth Smallest Path XOR Sum	Solution	Solve	Hard	-	Array Depth-First Search+2
3597. Partition String	Solution	Solve	Medium	Google	Hash Table Simulation+2
3587. Minimum Adjacent Swaps to Alternate Parity	Solution	Solve	Medium	-	Array Greedy
3592. Inverse Coin Change	Solution	Solve	Medium	Google	Array Dynamic Programming
3600. Maximize Spanning Tree Stability with Upgrades	Solution	Solve	Hard	-	Binary Search Graph+3
3585. Find Weighted Median Node in Tree	Solution	Solve	Hard	Google	Array Binary Search+4
3565. Sequential Grid Path Cover	Solution	Solve	Medium	-	Array Matrix+1
3625. Count Number of Trapezoids II	Solution	Solve	Hard	Google+1	Array Geometry+2
3594. Minimum Time to Transport All Individuals	Solution	Solve	Hard	-	Array Bit Manipulation+4
3572. Maximize Y‑Sum by Picking a Triplet of Distinct X‑Values	Solution	Solve	Medium	Amazon	Array Greedy+3
3582. Generate Tag for Video Caption	Solution	Solve	Easy	Bloomberg	Simulation String
3573. Best Time to Buy and Sell Stock V	Solution	Solve	Medium	Amazon+2	Array Dynamic Programming
3555. Smallest Subarray to Sort in Every Sliding Window	Solution	Solve	Medium	-	Array Greedy+4
3651. Minimum Cost Path with Teleportations	Solution	Solve	Hard	Amazon+3	Array Dynamic Programming+1
3574. Maximize Subarray GCD Score	Solution	Solve	Hard	Google	Array Enumeration+2