LeetCode

LeetCode problems and how I solved them.

Structure

• Explore - useful technics shortcuts for learn
• Solutions - all solved and refactored problems
• Again - need resolve because of loosing day streak or not enough knowledge
• Archive - all solved problems that in progress refactoring
• Todos - something special for resolve and revise

Development

After adding some code samples run code.sh

make code

You can automate this action by calling pre-commit

# setup pre-commit and check integrity
git config --local core.hooksPath .githooks

Testing

# fast unit tests to be sure that no regression was 
make test/smoke
# same as test/smoke but with -race condition check
make test/unit
# same as test/smoke but with creation local coverage report in HTML for golang
make test/coverage

Completed explores

• The LeetCode Beginner's Guide
• Array and String. Introduction to Data Structure
• Top Interview Questions. Easy Collection

Completed problems

#	Problem	Solution
1	Two Sum	twosum_1.go
2	Add Two Numbers	addtwonumbers.go
3	Longest Substring Without Repeating Characters	lengthoflongestsubstring.go
4	Median of Two Sorted Arrays	findmediansortedarrays.go
7	Reverse Integer	reverse.go
9	Palindrome Number	ispalindrome_1.go
17	Letter Combinations of a Phone Number	lettercombinations.go
19	Remove Nth Node From End of List	removenthfromend.go
35	Search Insert Position	searchinsert.go
40	Combination Sum II	combinationsum2.go
49	Group Anagrams	groupanagrams.go
53	Maximum Subarray	maxsubarray.go
57	Insert Interval	insert.go
58	Length of Last Word	lengthoflastword.go
62	Unique Paths	uniquepaths.go
69	Sqrt(x)	mysqrt.go
70	Climbing Stairs	climbstairs.go
76	Minimum Window Substring	minwindow.go
79	Word Search	exist.go
94	Binary Tree Inorder Traversal	inordertraversal.go
100	Same Tree	issametree.go
110	Balanced Binary Tree	isbalanced.go
118	Pascal's Triangle	generate.go
119	Pascal's Triangle II	getrow.go
141	Linked List Cycle	hascycle.go
143	Reorder List	reorderlist.go
144	Binary Tree Preorder Traversal	preordertraversal.go
145	Binary Tree Postorder Traversal	postordertraversal.go
150	Evaluate Reverse Polish Notation	evalrpn.go
157	Read N Characters Given Read4	solution_1.go
159	Longest Substring with At Most Two Distinct Characters	lengthoflongestsubstringtwodistinct.go
160	Intersection of Two Linked Lists	getintersectionnode.go
163	Missing Ranges	findmissingranges.go
165	Compare Version Numbers	compareversion.go
168	Excel Sheet Column Title	converttotitle.go
169	Majority Element	majorityelement.go
170	Two Sum III - Data structure design	twosum_2.go
171	Excel Sheet Column Number	titletonumber.go
175	Combine Two Tables	175.sql
179	Largest Number	largestnumber.go
181	Employees Earning More Than Their Managers	181.sql
182	Duplicate Emails	182.sql
183	Customers Who Never Order	183.sql
191	Number of 1 Bits	hammingweight.go
193	Valid Phone Numbers	193.sh
195	Tenth Line	195.sh
196	Delete Duplicate Emails	196.sql
197	Rising Temperature	197.sql
198	House Robber	rob.go
201	Bitwise AND of Numbers Range	rangebitwiseand.go
202	Happy Number	ishappy.go
205	Isomorphic Strings	isisomorphic.go
206	Reverse Linked List	reverselist.go
209	Minimum Size Subarray Sum	minsubarraylen.go
215	Kth Largest Element in an Array	findkthlargest.go
216	Combination Sum III	combinationsum3.go
219	Contains Duplicate II	containsnearbyduplicate.go
222	Count Complete Tree Nodes	countnodes.go
226	Invert Binary Tree	inverttree.go
231	Power of Two	ispoweroftwo.go
232	Implement Queue using Stacks	myqueue.go
234	Palindrome Linked List	ispalindrome_2.go
237	Delete Node in a Linked List	deletenode.go
238	Product of Array Except Self	productexceptself.go
242	Valid Anagram	isanagram.go
243	Shortest Word Distance	shortestdistance.go
246	Strobogrammatic Number	isstrobogrammatic.go
249	Group Shifted Strings	groupstrings.go
252	Meeting Rooms	canattendmeetings.go
253	Meeting Rooms II	minmeetingrooms.go
256	Paint House	mincost_2.go
257	Binary Tree Paths	binarytreepaths.go
258	Add Digits	adddigits.go
263	Ugly Number	isugly.go
264	Ugly Number II	nthuglynumber.go
266	Palindrome Permutation	canpermutepalindrome.go
268	Missing Number	missingnumber.go
273	Integer to English Words	numbertowords.go
276	Paint Fence	numways_2.go
277	Find the Celebrity	solution_2.go
279	Perfect Squares	numsquares.go
283	Move Zeroes	movezeroes.go
288	Unique Word Abbreviation	validwordabbr.go
292	Nim Game	canwinnim.go
293	Flip Game	generatepossiblenextmoves.go
296	Best Meeting Point	mintotaldistance.go
300	Longest Increasing Subsequence	lengthoflis.go
303	Range Sum Query - Immutable	numarray.go
320	Generalized Abbreviation	generateabbreviations.go
340	Longest Substring with At Most K Distinct Characters	lengthoflongestsubstringkdistinct.go
342	Power of Four	ispoweroffour.go
344	Reverse String	reversestring.go
346	Moving Average from Data Stream	movingaverage.go
347	Top K Frequent Elements	topkfrequent.go
349	Intersection of Two Arrays	intersection.go
350	Intersection of Two Arrays II	intersect.go
351	Android Unlock Patterns	numberofpatterns.go
359	Logger Rate Limiter	logger.go
367	Valid Perfect Square	isperfectsquare.go
368	Largest Divisible Subset	largestdivisiblesubset.go
380	Insert Delete GetRandom O(1)	randomizedset.go
386	Lexicographical Numbers	lexicalorder.go
387	First Unique Character in a String	firstuniqchar.go
404	Sum of Left Leaves	sumofleftleaves.go
405	Convert a Number to Hexadecimal	tohex.go
408	Valid Word Abbreviation	validwordabbreviation.go
409	Longest Palindrome	longestpalindrome.go
414	Third Maximum Number	thirdmax.go
415	Add Strings	addstrings.go
422	Valid Word Square	validwordsquare.go
434	Number of Segments in a String	countsegments.go
435	Non-overlapping Intervals	eraseoverlapintervals.go
440	K-th Smallest in Lexicographical Order	findkthnumber.go
441	Arranging Coins	arrangecoins.go
448	Find All Numbers Disappeared in an Array	finddisappearednumbers.go
451	Sort Characters By Frequency	frequencysort_1.go
452	Minimum Number of Arrows to Burst Balloons	findminarrowshots.go
454	4Sum II	foursumcount.go
455	Assign Cookies	findcontentchildren.go
458	Poor Pigs	poorpigs.go
476	Number Complement	findcomplement.go
482	License Key Formatting	licensekeyformatting.go
485	Max Consecutive Ones	findmaxconsecutiveones_1.go
487	Max Consecutive Ones II	findmaxconsecutiveones_2.go
500	Keyboard Row	findwords.go
501	Find Mode in Binary Search Tree	findmode.go
504	Base 7	converttobase7.go
506	Relative Ranks	findrelativeranks.go
509	Fibonacci Number	fib.go
513	Find Bottom Left Tree Value	findbottomleftvalue.go
525	Contiguous Array	findmaxlength.go
539	Minimum Time Difference	findmindifference.go
541	Reverse String II	reversestr.go
543	Diameter of Binary Tree	diameterofbinarytree.go
557	Reverse Words in a String III	reversewords.go
564	Find the Closest Palindrome	nearestpalindromic.go
567	Permutation in String	checkinclusion.go
572	Subtree of Another Tree	issubtree.go
573	Squirrel Simulation	mindistance.go
576	Out of Boundary Paths	findpaths.go
584	Find Customer Referee	584.sql
590	N-ary Tree Postorder Traversal	postorder.go
592	Fraction Addition and Subtraction	fractionaddition.go
599	Minimum Index Sum of Two Lists	findrestaurant.go
606	Construct String from Binary Tree	tree2str.go
617	Merge Two Binary Trees	mergetrees.go
621	Task Scheduler	leastinterval.go
624	Maximum Distance in Arrays	maxdistance.go
641	Design Circular Deque	mycirculardeque.go
643	Maximum Average Subarray I	findmaxaverage.go
645	Set Mismatch	finderrornums.go
647	Palindromic Substrings	countsubstrings.go
650	2 Keys Keyboard	minsteps_2.go
652	Find Duplicate Subtrees	findduplicatesubtrees.go
661	Image Smoother	imagesmoother.go
664	Strange Printer	strangeprinter.go
666	Path Sum IV	pathsum.go
674	Longest Continuous Increasing Subsequence	findlengthoflcis.go
680	Valid Palindrome II	validpalindrome.go
703	Kth Largest Element in a Stream	kthlargest.go
704	Binary Search	search.go
705	Design HashSet	myhashset.go
706	Design HashMap	myhashmap.go
709	To Lower Case	tolowercase.go
713	Subarray Product Less Than K	numsubarrayproductlessthank.go
719	Find K-th Smallest Pair Distance	smallestdistancepair.go
724	Find Pivot Index	pivotindex.go
725	Split Linked List in Parts	splitlisttoparts.go
729	My Calendar I	mycalendar.go
739	Daily Temperatures	dailytemperatures.go
746	Min Cost Climbing Stairs	mincostclimbingstairs.go
779	K-th Symbol in Grammar	kthgrammar.go
791	Custom Sort String	customsortstring.go
796	Rotate String	rotatestring.go
819	Most Common Word	mostcommonword.go
840	Magic Squares In Grid	nummagicsquaresinside.go
841	Keys and Rooms	canvisitallrooms.go
844	Backspace String Compare	backspacecompare.go
859	Buddy Strings	buddystrings.go
860	Lemonade Change	lemonadechange.go
867	Transpose Matrix	transpose.go
868	Binary Gap	binarygap.go
872	Leaf-Similar Trees	leafsimilar.go
874	Walking Robot Simulation	robotsim.go
876	Middle of the Linked List	middlenode.go
881	Boats to Save People	numrescueboats.go
884	Uncommon Words from Two Sentences	uncommonfromsentences.go
885	Spiral Matrix III	spiralmatrixiii.go
905	Sort Array By Parity	sortarraybyparity.go
907	Sum of Subarray Minimums	sumsubarraymins.go
912	Sort an Array	sortarray.go
917	Reverse Only Letters	reverseonlyletters.go
921	Minimum Add to Make Parentheses Valid	minaddtomakevalid.go
930	Binary Subarrays With Sum	numsubarrayswithsum.go
931	Minimum Falling Path Sum	minfallingpathsum.go
935	Knight Dialer	knightdialer.go
938	Range Sum of BST	rangesumbst.go
947	Most Stones Removed with Same Row or Column	removestones.go
948	Bag of Tokens	bagoftokensscore.go
953	Verifying an Alien Dictionary	isaliensorted.go
962	Maximum Width Ramp	maxwidthramp.go
977	Squares of a Sorted Array	sortedsquares.go
997	Find the Town Judge	findjudge.go
1002	Find Common Characters	commonchars.go
1004	Max Consecutive Ones III	longestones.go
1018	Binary Prefix Divisible By 5	prefixesdivby5.go
1026	Maximum Difference Between Node and Ancestor	maxancestordiff.go
1051	Height Checker	heightchecker.go
1057	Campus Bikes	assignbikes_1.go
1062	Longest Repeating Substring	longestrepeatingsubstring.go
1066	Campus Bikes II	assignbikes_2.go
1072	Flip Columns For Maximum Number of Equal Rows	maxequalrowsafterflips.go
1085	Sum of Digits in the Minimum Number	sumofdigits.go
1099	Two Sum Less Than K	twosumlessthank.go
1101	The Earliest Moment When Everyone Become Friends	earliestacq.go
1105	Filling Bookcase Shelves	minheightshelves.go
1108	Defanging an IP Address	defangipaddr.go
1110	Delete Nodes And Return Forest	delnodes.go
1119	Remove Vowels from a String	removevowels.go
1120	Maximum Average Subtree	maximumaveragesubtree.go
1122	Relative Sort Array	relativesortarray.go
1133	Largest Unique Number	largestuniquenumber.go
1134	Armstrong Number	isarmstrong.go
1137	N-th Tribonacci Number	tribonacci.go
1140	Stone Game II	stonegameii.go
1143	Longest Common Subsequence	longestcommonsubsequence.go
1155	Number of Dice Rolls With Target Sum	numrollstotarget.go
1160	Find Words That Can Be Formed by Characters	countcharacters.go
1165	Single-Row Keyboard	calculatetime.go
1167	Minimum Cost to Connect Sticks	connectsticks.go
1171	Remove Zero Sum Consecutive Nodes from Linked List	removezerosumsublists.go
1189	Maximum Number of Balloons	maxnumberofballoons.go
1190	Reverse Substrings Between Each Pair of Parentheses	reverseparentheses.go
1200	Minimum Absolute Difference	minimumabsdifference.go
1207	Unique Number of Occurrences	uniqueoccurrences.go
1208	Get Equal Substrings Within Budget	equalsubstring.go
1213	Intersection of Three Sorted Arrays	arraysintersection.go
1216	Valid Palindrome III	isvalidpalindrome.go
1219	Path with Maximum Gold	getmaximumgold.go
1221	Split a String in Balanced Strings	balancedstringsplit.go
1230	Toss Strange Coins	probabilityofheads.go
1239	Maximum Length of a Concatenated String with Unique Characters	maxlength.go
1243	Array Transformation	transformarray.go
1266	Minimum Time Visiting All Points	mintimetovisitallpoints.go
1269	Number of Ways to Stay in the Same Place After Some Steps	numways_1.go
1272	Remove Interval	removeinterval.go
1287	Element Appearing More Than 25% In Sorted Array	findspecialinteger.go
1291	Sequential Digits	sequentialdigits.go
1295	Find Numbers with Even Number of Digits	findnumbers.go
1310	XOR Queries of a Subarray	xorqueries.go
1325	Delete Leaves With a Given Value	removeleafnodes.go
1331	Rank Transform of an Array	arrayranktransform.go
1337	The K Weakest Rows in a Matrix	kweakestrows.go
1346	Check If N and Its Double Exist	checkifexist.go
1347	Minimum Number of Steps to Make Two Strings Anagram	minsteps_1.go
1356	Sort Integers by The Number of 1 Bits	sortbybits.go
1360	Number of Days Between Two Dates	daysbetweendates.go
1361	Validate Binary Tree Nodes	validatebinarytreenodes.go
1367	Linked List in Binary Tree	issubpath.go
1371	Find the Longest Substring Containing Vowels in Even Counts	findthelongestsubstring.go
1380	Lucky Numbers in a Matrix	luckynumbers.go
1381	Design a Stack With Increment Operation	customstack.go
1395	Count Number of Teams	numteams.go
1405	Longest Happy String	longestdiversestring.go
1413	Minimum Value to Get Positive Step by Step Sum	minstartvalue.go
1422	Maximum Score After Splitting a String	maxscore.go
1424	Diagonal Traverse II	finddiagonalorder.go
1426	Counting Elements	countelements.go
1428	Leftmost Column with at Least a One	leftmostcolumnwithone.go
1429	First Unique Number	firstunique.go
1436	Destination City	destcity.go
1441	Build an Array With Stack Operations	buildarray_1.go
1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	isprefixofword.go
1456	Maximum Number of Vowels in a Substring of Given Length	maxvowels.go
1457	Pseudo-Palindromic Paths in a Binary Tree	pseudopalindromicpaths.go
1460	Make Two Arrays Equal by Reversing Subarrays	canbeequal.go
1463	Cherry Pickup II	cherrypickup.go
1464	Maximum Product of Two Elements in an Array	maxproduct.go
1470	Shuffle the Array	shuffle.go
1475	Final Prices With a Special Discount in a Shop	finalprices.go
1480	Running Sum of 1d Array	runningsum.go
1481	Least Number of Unique Integers after K Removals	findleastnumofuniqueints.go
1496	Path Crossing	ispathcrossing.go
1497	Check If Array Pairs Are Divisible by k	canarrange.go
1503	Last Moment Before All Ants Fall Out of a Plank	getlastmoment.go
1507	Reformat Date	reformatdate.go
1508	Range Sum of Sorted Subarray Sums	rangesum.go
1509	Minimum Difference Between Largest and Smallest Value in Three Moves	mindifference.go
1514	Path with Maximum Probability	maxprobability.go
1518	Water Bottles	numwaterbottles.go
1530	Number of Good Leaf Nodes Pairs	countpairs_2.go
1535	Find the Winner of an Array Game	getwinner.go
1539	Kth Missing Positive Number	findkthpositive.go
1550	Three Consecutive Odds	threeconsecutiveodds.go
1561	Maximum Number of Coins You Can Get	maxcoins.go
1574	Shortest Subarray to be Removed to Make Array Sorted	findlengthofshortestsubarray.go
1576	Replace All ?'s to Avoid Consecutive Repeating Characters	modifystring.go
1578	Minimum Time to Make Rope Colorful	mincost_1.go
1581	Customer Who Visited but Did Not Make Any Transactions	1581.sql
1582	Special Positions in a Binary Matrix	numspecial.go
1598	Crawler Log Folder	minoperations_3.go
1603	Design Parking System	parkingsystem.go
1605	Find Valid Matrix Given Row and Column Sums	restorematrix.go
1609	Even Odd Tree	isevenoddtree.go
1614	Maximum Nesting Depth of the Parentheses	maxdepth.go
1624	Largest Substring Between Two Equal Characters	maxlengthbetweenequalcharacters.go
1630	Arithmetic Subarrays	checkarithmeticsubarrays.go
1633	Percentage of Users Attended a Contest	1633.sql
1634	Add Two Polynomials Represented as Linked Lists	add_poly.py
1636	Sort Array by Increasing Frequency	frequencysort_2.go
1637	Widest Vertical Area Between Two Points Containing No Points	maxwidthofverticalarea.go
1642	Furthest Building You Can Reach	furthestbuilding.go
1646	Get Maximum in Generated Array	getmaximumgenerated.go
1652	Defuse the Bomb	decrypt.go
1653	Minimum Deletions to Make String Balanced	minimumdeletions.go
1657	Determine if Two Strings Are Close	closestrings.go
1662	Check If Two String Arrays are Equivalent	arraystringsareequal.go
1684	Count the Number of Consistent Strings	countconsistentstrings.go
1685	Sum of Absolute Differences in a Sorted Array	getsumabsolutedifferences.go
1688	Count of Matches in Tournament	numberofmatches.go
1669	Merge In Between Linked Lists	mergeinbetween.go
1700	Number of Students Unable to Eat Lunch	countstudents.go
1701	Average Waiting Time	averagewaitingtime.go
1704	Determine if String Halves Are Alike	halvesarealike.go
1716	Calculate Money in Leetcode Bank	totalmoney.go
1717	Maximum Score From Removing Substrings	maximumgain.go
1720	Decode XORed Array	decode.go
1732	Find the Highest Altitude	largestaltitude.go
1740	Find Distance in a Binary Tree	finddistance.go
1743	Restore the Array From Adjacent Pairs	restorearray.go
1750	Minimum Length of String After Deleting Similar Ends	minimumlength.go
1752	Check if Array Is Sorted and Rotated	check.go
1757	Recyclable and Low Fat Products	1757.sql
1758	Minimum Changes To Make Alternating Binary String	minoperations_1.go
1759	Count Number of Homogenous Substrings	counthomogenous.go
1760	Minimum Limit of Balls in a Bag	minimumsize.go
1784	Check if Binary String Has at Most One Segment of Ones	checkonessegment.go
1791	Find Center of Star Graph	findcenter.go
1813	Sentence Similarity III	aresentencessimilar.go
1814	Count Nice Pairs in an Array	countnicepairs.go
1822	Sign of the Product of an Array	arraysign.go
1823	Find the Winner of the Circular Game	findthewinner.go
1827	Minimum Operations to Make the Array Increasing	minoperations.go
1829	Maximum XOR for Each Query	getmaximumxor.go
1832	Check if the Sentence Is Pangram	checkifpangram.go
1836	Remove Duplicates From an Unsorted Linked List	deleteduplicatesunsorted.go
1838	Frequency of the Most Frequent Element	maxfrequency.go
1844	Replace All Digits with Characters	replacedigits.go
1845	Seat Reservation Manager	seatmanager.go
1846	Maximum Element After Decreasing and Rearranging	maximumelementafterdecrementingandrearranging.go
1854	Maximum Population Year	maximumpopulation.go
1877	Minimize Maximum Pair Sum in Array	minpairsum.go
1885	Count Pairs in Two Arrays	countpairs_1.go
1887	Reduction Operations to Make the Array Elements Equal	reductionoperations.go
1894	Find the Student that Will Replace the Chalk	chalkreplacer.go
1897	Redistribute Characters to Make All Strings Equal	makeequal.go
1903	Largest Odd Number in String	largestoddnumber.go
1905	Count Sub Islands	countsubislands.go
1913	Maximum Product Difference Between Two Pairs	maxproductdifference.go
1920	Build Array from Permutation	buildarray_2.go
1921	Eliminate Maximum Number of Monsters	eliminatemaximum.go
1929	Concatenation of Array	getconcatenation.go
1930	Unique Length-3 Palindromic Subsequences	countpalindromicsubsequence.go
1945	Sum of Digits of String After Convert	getlucky.go
1961	Check If String Is a Prefix of Array	isprefixstring.go
1963	Minimum Number of Swaps to Make the String Balanced	minswaps_2.go
1973	Count Nodes Equal to Sum of Descendants	equaltodescendants.go
1975	Maximum Matrix Sum	maxmatrixsum.go
1980	Find Unique Binary String	finddifferentbinarystring.go
1991	Find the Middle Index in Array	findmiddleindex.go
2000	Reverse Prefix of Word	reverseprefix.go
2011	Final Value of Variable After Performing Operations	finalvalueafteroperations.go
2022	Convert 1D Array Into 2D Array	construct2darray.go
2028	Find Missing Observations	missingrolls.go
2032	Two Out of Three	twooutofthree.go
2053	Kth Distinct String in an Array	kthdistinct.go
2058	Find the Minimum and Maximum Number of Nodes Between Critical Points	nodesbetweencriticalpoints.go
2082	The Number of Rich Customers	2082.sql
2090	K Radius Subarray Averages	getaverages.go
2094	Finding 3-Digit Even Numbers	findevennumbers.go
2096	Step-By-Step Directions From a Binary Tree Node to Another	getdirections.go
2107	Number of Unique Flavors After Sharing K Candies	sharecandies.go
2108	Find First Palindromic String in the Array	firstpalindrome.go
2109	Adding Spaces to a String	addspaces.go
2125	Number of Laser Beams in a Bank	numberofbeams.go
2134	Minimum Swaps to Group All 1's Together II	minswaps_1.go
2149	Rearrange Array Elements by Sign	rearrangearray.go
2181	Merge Nodes in Between Zeros	mergenodes.go
2182	Construct String With Repeat Limit	repeatlimitedstring.go
2191	Sort the Jumbled Numbers	sortjumbled.go
2196	Create Binary Tree From Descriptions	createbinarytree.go
2220	Minimum Bit Flips to Convert Number	minbitflips.go
2225	Find Players With Zero or One Losses	findwinners.go
2244	Minimum Rounds to Complete All Tasks	minimumrounds.go
2257	Count Unguarded Cells in the Grid	countunguarded.go
2259	Remove Digit From Number to Maximize Result	removedigit.go
2264	Largest 3-Same-Digit Number in String	largestgoodinteger.go
2265	Count Nodes Equal to Average of Subtree	averageofsubtree.go
2275	Largest Combination With Bitwise AND Greater Than Zero	largestcombination.go
2326	Spiral Matrix IV	spiralmatrix.go
2331	Evaluate Boolean Binary Tree	evaluatetree.go
2337	Move Pieces to Obtain a String	canchange.go
2341	Maximum Number of Pairs in Array	numberofpairs.go
2353	Design a Food Rating System	foodratings.go
2357	Make Array Zero by Subtracting Equal Amounts	minimumoperations_1.go
2385	Amount of Time for Binary Tree to Be Infected	amountoftime.go
2391	Minimum Amount of Time to Collect Garbage	garbagecollection.go
2418	Sort the People	sortpeople.go
2419	Longest Subarray With Maximum Bitwise AND	longestsubarray.go
2433	Find The Original Array of Prefix Xor	findarray.go
2441	Largest Positive Integer That Exists With Its Negative	findmaxk.go
2469	Convert the Temperature	converttemperature.go
2482	Difference Between Ones and Zeros in Row and Column	onesminuszeros.go
2485	Find the Pivot Integer	pivotinteger.go
2487	Remove Nodes From Linked List	removenodes.go
2490	Circular Sentence	iscircularsentence.go
2491	Divide Players Into Teams of Equal Skill	divideplayers.go
2516	Take K of Each Character From Left and Right	takecharacters.go
2540	Minimum Common Value	getcommon.go
2549	Count Distinct Numbers on Board	distinctintegers.go
2554	Maximum Number of Integers to Choose From a Range I	maxcount.go
2558	Take Gifts From the Richest Pile	pickgifts.go
2563	Count the Number of Fair Pairs	countfairpairs.go
2582	Pass the Pillow	passthepillow.go
2595	Number of Even and Odd Bits	evenoddbit.go
2610	Convert an Array Into a 2D Array With Conditions	findmatrix.go
2620	Counter	createCounter.js
2667	Create Hello World Function	createHelloWorld.js
2678	Number of Senior Citizens	countseniors.go
2696	Minimum String Length After Removing Substrings	minlength.go
2703	Return Length of Arguments Passed	argumentsLength.js
2704	To Be Or Not To Be	expect.js
2706	Buy Two Chocolates	buychoco.go
2744	Find Maximum Number of String Pairs	maximumnumberofstringpairs.go
2769	Find the Maximum Achievable Number	themaximumachievablex.go
2779	Maximum Beauty of an Array After Applying Operation	maximumbeauty.go
2785	Sort Vowels in a String	sortvowels.go
2788	Split Strings by Separator	splitwordsbyseparator.go
2796	Repeat String	replicate.js
2807	Insert Greatest Common Divisors in Linked List	insertgreatestcommondivisors.go
2816	Double a Number Represented as a Linked List	doubleit.go
2825	Make String a Subsequence Using Cyclic Increments	canmakesubsequence.go
2849	Determine if a Cell Is Reachable at a Given Time	isreachableattime.go
2864	Maximum Odd Binary Number	maximumoddbinarynumber.go
2870	Minimum Number of Operations to Make Array Empty	minoperations_2.go
2877	Create a DataFrame from List	create_dataframe.py
2879	Display the First Three Rows	select_first_rows.py
2884	Modify Columns	modify_salary_column.py
2894	Divisible and Non-divisible Sums Difference	differenceofsums.go
2914	Minimum Number of Changes to Make Binary String Beautiful	minchanges.go
2938	Separate Black and White Balls	minimumsteps.go
2942	Find Words Containing Character	findwordscontaining.go
2958	Length of Longest Subarray With at Most K Frequency	maxsubarraylength.go
2966	Divide Array Into Arrays With Max Difference	dividearray.go
2971	Find Polygon With the Largest Perimeter	largestperimeter.go
2981	Find Longest Special Substring That Occurs Thrice I	maximumlength.go
3005	Count Elements With Maximum Frequency	maxfrequencyelements.go
3011	Find if Array Can Be Sorted	cansortarray.go
3016	Minimum Number of Pushes to Type Word II	minimumpushes.go
3032	Count Numbers With Unique Digits II	numbercount.go
3062	Winner of the Linked List Game	gameresult.go
3063	Linked List Frequency	frequenciesofelements.go
3075	Maximize Happiness of Selected Children	maximumhappinesssum.go
3110	Score of a String	scoreofstring.go
3133	Minimum Array End	minend.go
3146	Permutation Difference between Two Strings	findpermutationdifference.go
3173	Bitwise OR of Adjacent Elements	orarray.go
3189	Minimum Moves to Get a Peaceful Board	minmoves.go
3190	Find Minimum Operations to Make All Elements Divisible by Three	minimumoperations_2.go
3217	Delete Nodes From Linked List Present in Array	modifiedlist.go
3263	Convert Doubly Linked List to Array I	toarray.go
3264	Final Array State After K Multiplication Operations I	getfinalstate.go
3289	The Two Sneaky Numbers of Digitville	getsneakynumbers.go