Coding Interview Problems

Problems

Discover problems by topic, company, difficulty, and learning priority.

Problem	Platform	Difficulty	Topics	Companies	Acceptance
421. Maximum XOR of Two Numbers in an Array	Leetcode	Medium	ArraysBit ManipulationTries	GoogleMetaAmazon	0%
3479. Fruits Into Baskets III	Leetcode	Medium	ArraysGreedyOrdered Structures	Amazon	0%
3514. Number of Unique XOR Triplets II	Leetcode	Medium	ArraysBit ManipulationHash Maps		100%
3501. Maximize Active Section with Trade II	Leetcode	Medium	ArraysDynamic ProgrammingGreedy	Google	0%
3499. Maximize Active Section with Trade I	Leetcode	Medium	ArraysGreedyDynamic Programming		100%
1260. Shift 2D Grid	Leetcode	Medium	ArraysMatrices		0%
669. Trim a Binary Search Tree	Leetcode	Medium	TreesRecursionBinary Search	GoogleMeta	0%
3312. Sorted GCD Pair Queries	Leetcode	Medium	ArraysNumber TheorySorting	Google	67%
841. Keys and Rooms	Leetcode	Medium	GraphsSetsStacks	Google	0%
1052. Grumpy Bookstore Owner	Leetcode	Medium	ArraysSliding WindowGreedy	Amazon	0%
Concatenate Non-Zero Digits and Multiply by Sum I	Leetcode	Medium	ArraysMathSimulation		0%
Sum of GCD of Formed Pairs	Leetcode	Medium	ArraysNumber TheoryMath	Google	0%
3336. Find the Number of Subsequences With Equal GCD	Leetcode	Medium	ArraysMathNumber Theory	Google	100%
GCD of Odd and Even Sums	Leetcode	Medium	ArraysMathNumber Theory		0%
3988. Create Grid With Exactly K Paths I	Leetcode	Medium	MatricesCombinatoricsDynamic Programming		0%
1291. Sequential Digits	Leetcode	Medium	ArraysMathStrings		0%
Minimum Total Cost to Process All Elements	Leetcode	Medium	ArraysGreedyHash Maps		0%
Path Existence Queries in a Graph II	Leetcode	Medium	GraphsGraph ConnectivityUnion Find	Google	0%
1019. Next Greater Node In Linked List	Leetcode	Medium	Linked ListsStacksArrays	AmazonGoogle	0%
3532. Path Existence Queries in a Graph I	Leetcode	Medium	GraphsGraph ConnectivityUnion Find	GoogleMetaAmazon	0%

Showing 61-80 of 1091 problems

PreviousNext

Loading Preptin

Problems