Two Pointers in Python with Tests

Two Pointers holds 132 problems (39 Easy, 85 Medium, 8 Hard). Generate any of them into the current directory with lcpy gen -n <number>.

#	Problem	Difficulty	Solution
5	Longest Palindromic Substring	Medium	solution.py
11	Container With Most Water	Medium	solution.py
15	3Sum	Medium	solution.py
16	3Sum Closest	Medium	solution.py
18	4Sum	Medium	solution.py
19	Remove Nth Node From End of List	Medium	solution.py
26	Remove Duplicates From Sorted Array	Easy	solution.py
27	Remove Element	Easy	solution.py
28	Find the Index of the First Occurrence in a String	Easy	solution.py
31	Next Permutation	Medium	solution.py
42	Trapping Rain Water	Hard	solution.py
61	Rotate List	Medium	solution.py
75	Sort Colors	Medium	solution.py
80	Remove Duplicates from Sorted Array II	Medium	solution.py
82	Remove Duplicates from Sorted List II	Medium	solution.py
86	Partition List	Medium	solution.py
88	Merge Sorted Array	Easy	solution.py
125	Valid Palindrome	Easy	solution.py
141	Linked List Cycle	Easy	solution.py
142	Linked List Cycle II	Medium	solution.py
143	Reorder List	Medium	solution.py
148	Sort List	Medium	solution.py
151	Reverse Words in a String	Medium	solution.py
160	Intersection of Two Linked Lists	Easy	solution.py
161	One Edit Distance	Medium	solution.py
165	Compare Version Numbers	Medium	solution.py
167	Two Sum II - Input Array Is Sorted	Medium	solution.py
170	Two Sum III - Data structure design	Easy	solution.py
186	Reverse Words in a String II	Medium	solution.py
189	Rotate Array	Medium	solution.py
202	Happy Number	Easy	solution.py
234	Palindrome Linked List	Easy	solution.py
244	Shortest Word Distance II	Medium	solution.py
246	Strobogrammatic Number	Easy	solution.py
251	Flatten 2D Vector	Medium	solution.py
253	Meeting Rooms II	Medium	solution.py
259	3Sum Smaller	Medium	solution.py
272	Closest Binary Search Tree Value II	Hard	solution.py
277	Find the Celebrity	Medium	solution.py
283	Move Zeroes	Easy	solution.py
287	Find the Duplicate Number	Medium	solution.py
295	Find Median from Data Stream	Hard	solution.py
321	Create Maximum Number	Hard	solution.py
344	Reverse String	Easy	solution.py
345	Reverse Vowels of a String	Easy	solution.py
349	Intersection of Two Arrays	Easy	solution.py
350	Intersection of Two Arrays II	Easy	solution.py
360	Sort Transformed Array	Medium	solution.py
392	Is Subsequence	Easy	solution.py
408	Valid Word Abbreviation	Easy	solution.py
443	String Compression	Medium	solution.py
455	Assign Cookies	Easy	solution.py
457	Circular Array Loop	Medium	solution.py
466	Count The Repetitions	Hard	solution.py
475	Heaters	Medium	solution.py
481	Magical String	Medium	solution.py
522	Longest Uncommon Subsequence II	Medium	solution.py
524	Longest Word in Dictionary through Deleting	Medium	solution.py
532	K-diff Pairs in an Array	Medium	solution.py
541	Reverse String II	Easy	solution.py
556	Next Greater Element III	Medium	solution.py
557	Reverse Words in a String III	Easy	solution.py
567	Permutation in String	Medium	solution.py
581	Shortest Unsorted Continuous Subarray	Medium	solution.py
611	Valid Triangle Number	Medium	solution.py
633	Sum of Square Numbers	Medium	solution.py
647	Palindromic Substrings	Medium	solution.py
653	Two Sum IV - Input is a BST	Easy	solution.py
658	Find K Closest Elements	Medium	solution.py
680	Valid Palindrome II	Easy	solution.py
696	Count Binary Substrings	Easy	solution.py
719	Find K-th Smallest Pair Distance	Hard	solution.py
723	Candy Crush	Medium	solution.py
763	Partition Labels	Medium	solution.py
777	Swap Adjacent in LR String	Medium	solution.py
786	K-th Smallest Prime Fraction	Medium	solution.py
795	Number of Subarrays with Bounded Maximum	Medium	solution.py
809	Expressive Words	Medium	solution.py
821	Shortest Distance to a Character	Easy	solution.py
825	Friends Of Appropriate Ages	Medium	solution.py
826	Most Profit Assigning Work	Medium	solution.py
832	Flipping an Image	Easy	solution.py
838	Push Dominoes	Medium	solution.py
844	Backspace String Compare	Easy	solution.py
845	Longest Mountain in Array	Medium	solution.py
870	Advantage Shuffle	Medium	solution.py
876	Middle of the Linked List	Easy	solution.py
881	Boats to Save People	Medium	solution.py
905	Sort Array By Parity	Easy	solution.py
917	Reverse Only Letters	Easy	solution.py
922	Sort Array By Parity II	Easy	solution.py
923	3Sum With Multiplicity	Medium	solution.py
925	Long Pressed Name	Easy	solution.py
942	DI String Match	Easy	solution.py
948	Bag of Tokens	Medium	solution.py
962	Maximum Width Ramp	Medium	solution.py
969	Pancake Sorting	Medium	solution.py
977	Squares of a Sorted Array	Easy	solution.py
986	Interval List Intersections	Medium	solution.py
1048	Longest String Chain	Medium	solution.py
1099	Two Sum Less Than K	Easy	solution.py
1214	Two Sum BSTs	Medium	solution.py
1229	Meeting Scheduler	Medium	solution.py
1265	Print Immutable Linked List in Reverse	Medium	solution.py
1498	Number of Subsequences That Satisfy the Given Sum Condition	Medium	solution.py
1508	Range Sum of Sorted Subarray Sums	Medium	solution.py
1570	Dot Product of Two Sparse Vectors	Medium	solution.py
1574	Shortest Subarray to be Removed to Make Array Sorted	Medium	solution.py
1650	Lowest Common Ancestor of a Binary Tree III	Medium	solution.py
1721	Swapping Nodes in a Linked List	Medium	solution.py
1750	Minimum Length of String After Deleting Similar Ends	Medium	solution.py
1768	Merge Strings Alternately	Easy	solution.py
1793	Maximum Score of a Good Subarray	Hard	solution.py
1813	Sentence Similarity III	Medium	solution.py
1861	Rotating the Box	Medium	solution.py
1868	Product of Two Run-Length Encoded Arrays	Medium	solution.py
1898	Maximum Number of Removable Characters	Medium	solution.py
1963	Minimum Number of Swaps to Make the String Balanced	Medium	solution.py
2108	Find First Palindromic String in the Array	Easy	solution.py
2109	Adding Spaces to a String	Medium	solution.py
2130	Maximum Twin Sum of a Linked List	Medium	solution.py
2149	Rearrange Array Elements by Sign	Medium	solution.py
2161	Partition Array According to Given Pivot	Medium	solution.py
2300	Successful Pairs of Spells and Potions	Medium	solution.py
2406	Divide Intervals Into Minimum Number of Groups	Medium	solution.py
2460	Apply Operations to an Array	Easy	solution.py
2486	Append Characters to String to Make Subsequence	Medium	solution.py
2491	Divide Players Into Teams of Equal Skill	Medium	solution.py
2503	Maximum Number of Points From Grid Queries	Hard	solution.py
2563	Count the Number of Fair Pairs	Medium	solution.py
2570	Merge Two 2D Arrays by Summing Values	Easy	solution.py
2938	Separate Black and White Balls	Medium	solution.py

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Two Pointers in Python with Tests