Sheets/Blind75

47 problems

Blind75

Follow the Blind75 sheet end-to-end — a proven, ordered set of problems.

42Total problems

0Solved

0%Completion

13/29/5Easy/Med/Hard

Generate Brackets· Recursion

Recursion · Backtracking · Strings

Medium

25m

Power Set· Recursion

Recursion · Backtracking · Bit Manipulation

Medium

20m

Two Sum· Hashing

Arrays · Hashing

Easy

15m

Longest Consecutive Sequence· Hashing

Arrays · Hashing

Medium

25m

Finding the Single Element in an Array· Arrays

Arrays · Bit Manipulation

Easy

15m

Largest Subarray Sum· Arrays

Arrays · Dynamic Programming · Divide and Conquer

Medium

20m

Arrange Colors in Order· Arrays

Arrays · Two Pointers · Sorting

Medium

20m

Majority Element· Arrays

Arrays · Hashing · Greedy

Easy

15m

Maximize Share Profit· Arrays

Arrays · Greedy · Dynamic Programming

Easy

15m

Three Sum· Arrays

Arrays · Two Pointers · Sorting

Medium

25m

Merge Intervals· Arrays

Arrays · Sorting · Greedy

Medium

25m

Search Element in Rotated Sorted Array· Binary Search

Binary Search · Arrays

Medium

25m

Find Minimum in Rotated Sorted Array· Binary Search

Binary Search · Arrays

Medium

20m

Single Element· Bit Manipulation

Bit Manipulation · Arrays

Easy

15m

Insert Interval· Greedy Algorithms

Arrays · Greedy · Sorting

Medium

25m

Jump Game· Greedy Algorithms

Arrays · Greedy · Dynamic Programming

Medium

25m

LRU Cache· Greedy Algorithms

Linked List · Hashing · Greedy

Medium

35m

Longest Substring Without Repeating Characters· Sliding Window & Two Pointers

Strings · Sliding Window · Hashing

Medium

25m

Minimum Window Substring· Sliding Window & Two Pointers

Strings · Sliding Window · Hashing

Hard

45m

Balanced Parenthesis· Stacks & Queues

Stack · Strings

Easy

15m

Implement Min Stack· Stacks & Queues

Stack · Design

Medium

25m

Trapping Rainwater· Stacks & Queues

Arrays · Stack · Two Pointers

Hard

40m

Reverse a Linked List· Linked List

Linked List · Recursion

Easy

15m

Cycle Detection· Linked List

Linked List · Two Pointers

Easy

15m

Intersection of Two Linked Lists· Linked List

Linked List · Two Pointers · Hashing

Easy

20m

Level Order Traversal· Binary Trees

Trees · BFS · Queue

Medium

20m

Balanced Binary Tree· Binary Trees

Trees · Recursion · DFS

Easy

20m

Diameter of Binary Tree· Binary Trees

Trees · Recursion · DFS

Easy

20m

Maximum Path Sum of a Binary Tree· Binary Trees

Trees · Recursion · DFS

Hard

35m

Lowest Common Ancestor of a Binary Tree· Binary Trees

Trees · DFS · Recursion

Medium

25m

Validate a Binary Search Tree· Binary Search Tree

Binary Search Tree · Recursion · DFS

Medium

20m

Kth Largest Element· Heaps

Heap · Sorting · Arrays

Medium

20m

Merge K Sorted Linked Lists· Heaps

Heap · Linked List · Sorting

Hard

35m

Top K Frequent Elements· Heaps

Heap · Hashing · Sorting

Medium

25m

Number Of Islands· Graphs

Graph · BFS · DFS

Medium

25m

Climbing Stairs· Dynamic Programming

Dynamic Programming · Recursion

Easy

15m

House Robber I· Dynamic Programming

Dynamic Programming · Arrays

Medium

20m

Unique Paths I· Dynamic Programming

Dynamic Programming · Arrays

Medium

20m

Partition Equal Subset Sum· Dynamic Programming

Dynamic Programming · Arrays

Medium

25m

Longest Common Subsequence· Dynamic Programming

Dynamic Programming · Strings

Medium

25m

Edit Distance· Dynamic Programming

Dynamic Programming · Strings

Hard

35m

Building a Growing Sequence of Heights· Dynamic Programming

Dynamic Programming · Arrays · Binary Search

Medium

25m