Leet Code practice problems

index

Master list of Leet Code practice problems, sorted by topic and difficulty.

Arrays & Strings

• Two Sum (Easy) #1 Two Sum
• Remove Duplicates from Sorted Array (Easy) #26 Remove Duplicates from Sorted Array
• Move Zeroes (Easy) #283 Move Zeroes
• Valid Anagram (Easy) #242 valid-anagram-1755163786
• Longest Substring Without Repeating Characters (Medium) #3 longest-string-1755597919

Searching & Sorting

• Binary Search (Easy) #704
• Merge Intervals (Medium) #56
• Top K Frequent Elements (Medium) #347

Linked Lists

• Reverse Linked List (Easy) #206
• Merge Two Sorted Lists (Easy) #21
• Linked List Cycle (Easy) #141

Recursion & Backtracking

• Climbing Stairs (Easy) #70 climbing-staircase-1755623531
• Generate Parentheses (Medium) #22

Dynamic Programming (Intro Level)

• House Robber (Easy) #198 house-robber-1755796028
• Maximum Subarray (Easy) #53

Math & Miscellaneous

• Fizz Buzz (Easy) #412 fizz-buzz-1755616387
• Count Primes (Easy) #204 count-primes-1755105682
• Palindrome Number (Easy) #9 palindrome-number-1755100513