Recursion | LeetCode Problems

45 Recursion solutions to LeetCode solutions.

Recursion Problems View all solutions →

Add Two Numbers

#2 Medium

Regular Expression Matching

#10 Hard

Merge Two Sorted Lists

#21 Easy

Swap Nodes in Pairs

#24 Medium

Reverse Nodes in k-Group

#25 Hard

Wildcard Matching

#44 Hard

Pow(x, n)

#50 Medium

Permutation Sequence

#60 Hard

Reorder List

#143 Medium

Remove Linked List Elements

#203 Easy

Reverse Linked List

#206 Easy

Basic Calculator

#224 Hard

Power of Two

#231 Easy

Number of Digit One

#233 Hard

Palindrome Linked List

#234 Easy

Different Ways to Add Parentheses

#241 Medium

Strobogrammatic Number II

#247 Medium

Strobogrammatic Number III

#248 Hard

Verify Preorder Sequence in Binary Search Tree

#255 Medium

Integer to English Words

#273 Hard

Power of Three

#326 Easy

Power of Four

#342 Easy

Elimination Game

#390 Medium

Decode String

#394 Medium

Ternary Expression Parser

#439 Medium

Predict the Winner

#486 Medium

Fibonacci Number

#509 Easy

Output Contest Matches

#544 Medium

Parse Lisp Expression

#736 Hard

Special Binary String

#761 Hard

Basic Calculator IV

#770 Hard

Basic Calculator III

#772 Hard

Split BST

#776 Medium

K-th Symbol in Grammar

#779 Medium

All Possible Full Binary Trees

#894 Medium

Parsing A Boolean Expression

#1106 Hard

Print Immutable Linked List in Reverse

#1265 Medium

Find Kth Bit in Nth Binary String

#1545 Medium

Maximize Number of Nice Divisors

#1808 Hard

Find the Winner of the Circular Game

#1823 Medium

Count Good Numbers

#1922 Medium

Minimum Non-Zero Product of the Array Elements

#1969 Medium

Remove Nodes From Linked List

#2487 Medium

Find the K-th Character in String Game I

#3304 Easy

Find the K-th Character in String Game II

#3307 Hard