Topic: Recursion

alleasymediumhard

alltodoattemptedfailedsolved

39 problems

#	Title	Status	Difficulty	Topics	Accept
2	Add Two Numbers	—	Medium	Linked ListMathRecursion	46%
10	Regular Expression Matching	—	Hard	StringDynamic ProgrammingRecursion	29%
21	Merge Two Sorted Lists	—	Easy	Linked ListRecursion	67%
24	Swap Nodes in Pairs	—	Medium	Linked ListRecursion	67%
25	Reverse Nodes in k-Group	—	Hard	Linked ListRecursion	63%
44	Wildcard Matching	—	Hard	StringDynamic ProgrammingGreedy	30%
50	Pow(x, n)	—	Medium	MathRecursion	37%
60	Permutation Sequence	—	Hard	MathRecursion	50%
143	Reorder List	—	Medium	Linked ListTwo PointersStack	62%
203	Remove Linked List Elements	—	Easy	Linked ListRecursion	52%
206	Reverse Linked List	—	Easy	Linked ListRecursion	79%
224	Basic Calculator	—	Hard	MathStringStack	45%
231	Power of Two	—	Easy	MathBit ManipulationRecursion	48%
233	Number of Digit One	—	Hard	MathDynamic ProgrammingRecursion	36%
234	Palindrome Linked List	—	Easy	Linked ListTwo PointersStack	56%
241	Different Ways to Add Parenthesesread	—	Medium	MathStringDynamic Programming	72%
273	Integer to English Words	—	Hard	MathStringRecursion	34%
326	Power of Three	—	Easy	MathRecursion	48%
342	Power of Four	—	Easy	MathBit ManipulationRecursion	49%
390	Elimination Game	—	Medium	MathRecursion	45%
394	Decode String	—	Medium	StringStackRecursion	61%
486	Predict the Winner	—	Medium	ArrayMathDynamic Programming	56%
509	Fibonacci Number	—	Easy	MathDynamic ProgrammingRecursion	73%
736	Parse Lisp Expression	—	Hard	Hash TableStringStack	53%
761	Special Binary String	—	Hard	StringRecursion	63%
770	Basic Calculator IV	—	Hard	Hash TableMathString	49%
779	K-th Symbol in Grammar	—	Medium	MathBit ManipulationRecursion	47%
894	All Possible Full Binary Trees	—	Medium	Dynamic ProgrammingTreeRecursion	83%
1106	Parsing A Boolean Expression	—	Hard	StringStackRecursion	70%
1545	Find Kth Bit in Nth Binary String	—	Medium	StringRecursionSimulation	70%
1808	Maximize Number of Nice Divisors	—	Hard	MathRecursionNumber Theory	33%
1823	Find the Winner of the Circular Gameread	—	Medium	ArrayMathRecursion	82%
1922	Count Good Numbers	—	Medium	MathRecursion	56%
1969	Minimum Non-Zero Product of the Array Elements	—	Medium	MathGreedyRecursion	36%
2487	Remove Nodes From Linked List	—	Medium	Linked ListStackRecursion	74%
2550	Count Collisions of Monkeys on a Polygon	—	Medium	MathRecursion	29%
3304	Find the K-th Character in String Game I	—	Easy	MathBit ManipulationRecursion	73%
3307	Find the K-th Character in String Game II	—	Hard	MathBit ManipulationRecursion	27%
3483	Unique 3-Digit Even Numbers	—	Easy	ArrayHash TableRecursion	67%