Balakrishnan Varadarajan

June 2009 (Contest IV)

Product of divisors, The Lucky Draw, The battlefield, Primes in the GCD table, Pack the balls in a box!, Count the squares, Alien Clock

July 2009 (Contest V)

Lights Off, Quadratic Equations, The White Knight, Buggy algorithm, Johny the farmer, Lights Off, Revisited!, Sums in a cuboid

August 2009 (Contest VI)

Magic sequence, Bytelandian Robots, Curry Stained Napkin, Golf course, Crystals, Divide and conquer

September 2009 (Contest VIII)

Se7en, A Bowling Game, Smart Frog, A Coin Game, Alien language, Chemical reactions, Mosaic

October 2009 (Contest IX)

Congruent triangles, A puzzle game, Paragraph Formatting, Just a simple sum, Kayaks, Forces in the crystal

November 2009 (Contest X)

SudokuX, Help the DJ, Magic Strings, Help the judge, The LCS Problem Revisited, The Best Box

December 2009 (Contest XI)

Park tour, The N Queens Puzzle Revisited, Effective Sets, Palindromic Numbers, Maze of Digits, Plant Location

January 2010 (Contest XII)

Place the balloon, Circle of towers, Cell Phone Towers , Wildcard Matching, Lost Primes, Jawbreaker

February 2010 Contest

The Mine Field, Soccer League

March 2010 Contest

Treasure Hunting, Heroes of Magical Might, K-important Strings, The Best Tower, Tri-Hexagonal Puzzle, Traffic jam

April 2010 Contest

Lighting the shop, The Reversed World, Flood, Travelling Salesman Again !, Adding Fractions

May 2010 Contest

Lights Out, Nice Quadrangles, Rendezvous, Generalized Spanning Trees, Summing Slopes

June 2010 Contest

Graph Counting, Robot Game, Prime Pattern, Squirrel and chestnut

July Cook Off

The Black and White Knights, Ripple-Carry Adder

August 2010 Challenge

Genetics, Swarm of Polygons, Exit code, Obstacle Course, Stepping Numbers, Optimizing Production and Sales

August Cook Off

Fetching Cooking Tools, Arranging the Appetizers, Cleaning Up

September 2010 Challenge

Multiples of 3, Brush Fire, Cake Production Line, Communicating Servers, Bytelandian Shoppers, Trees Again

October 2010 Challenge

Logging Game, Count palindromes

November 2010 Challenge

Randomly Testing Circuits, Chefs Bad Day, Balanced Walks

The November CookOff

One Dimensional Game of Life, Dinner Party Socializing, Cutting Recipes

December 2010 Challenge

The Hungry Bear, Odd Binomial Coefficients, Byteknights and Byteknaves, A String Game

The December 2010 Cook-Off

Preparing Dishes, The Morning Commute, Pairing Chefs

January 2011 Challenge

Restaurant Expansion, Chess Pushing Game, Flu Shot Lineup, Splitting Giant Subs, Count Relations

The January 2011 Cook-Off

Holes in the text, Chef team, Whole submatrix, Time of collisions

February 2011 Contest

Bogosort, Glass Measurement, Rush Hour, Milestones, Counting Terms, Coloring Colorable Graphs

March 2011 Challenge

K-Unique Sequence, Buying Land

March Cook-off Challenge

Money Transformation, Snake Snaky

April Long Contest

Gravel, Number Game Revisited, Generalized Independent Sets, Central Point, Rectangles Counting

April Cook-Off Challenge

The Grand Cook Off, A Prime Conjecture, Internet Media Types

May Long Contest 2011

Pruning Trees, Tree Product, The Great Wall of Byteland, Sum Divides Product

May Cook-off 2011

Socializing Game around Pizza, Distribute idlis Equally

June Long Contest 2011

Maximal Score Path, Chef Teams, Attack of the Clones, Restock

June Cook-off

Correctness of Knight Move, Super-plane

August Long Contest 2011

Infinite Grid Game

August Cook-off 2011

Vote for the Noodle Soup, Open the Dragon Scroll, Rotate the String, Collect the Chocolate Chips

September Long Contest

Haunted Maze, Younger Brother, BIT Magazine, Counting Hexagons, Short

October Long Contest 2011

Dish Distribution, The Great Plain, The Baking Business, Repeated String, Lucky Palin, Sine Partition Function

September Cook-off

Last Digit Sum, Target Practice, Hotel Bytelandia

October Cook-off

Generalized Arithmetic Progression Free Sequence

November Long Contest 2011

Chefs new Pet, New Restaurant, The Postal Service

November Cook-Off

Moving Coins, Subanagrams

December 2011 Long Contest

Birthday Gift, Robot Movings, Ciel and Eggs

December Cook-Off

Ciel and New Menu, Ciel and A-B Problem

January 2012 Challenge

Misinterpretation 2, Ambidextrous Chefs, Houses and Restaurants, Gap Filler Game, Lucky Sum, Card Shuffle

January Cook-Off

Zeta-Nim Game

February 2012 Challenge

Box and Ball System, Lucky Count, Restore the Recipe, Can you do it better, Lucky Long, Find a Subsequence, Smart Chef vs Evil Chef, Word Couting, Count of Maximum

February 2012 Cook-off

Daily Train, Equation Solver

March Cook-Off 2012

Ciel Numbers I, Ciel Numbers II

April Challenge 2012

Lucky Array, Stacking Pancakes, Greatest Dumpling Fight

April Cook-Off 2012

Top Batsmen, Crease Painting, Resistance

May Challenge 2012

Digits Forest, Killing Gs, Little Elephant and Median, Jewels and Stones, Lucky lucky number, Selling Tickets, Divisible Pairs, Remember the recipe, Little Elephant and Boxes, A Home for Chef

May Cook-Off 2012

Little Elephant and Balance, Little Elephant and Swapping, Little Elephant and Strings

June Challenge 2012

Closest Points, Polynomial Partition Function, Little Elephant and Product, Little Elephant and Candies, Magic Hull, Expected Maximum Matching, Doom Bakes Cakes, Cool Numbers, Fly-overs, Arranging Cup-cakes

June Cook-Off 2012

Closing the Tweets, Connecting Soldiers, Golden Trees

July Challenge 2012

Favourite Numbers, Chef's Dream, My Fair Coins, The Gray-Similar Code, Little Elephant and Bubble Sort, Gift Rift, Restaurant Rating

August Challenge 2012

Little Elephant and Bombs, Lucky Driving, Game Count, Block Game, Range of Data, Delivery Boy, Machine Gun

July Cook-Off 2012

Ciel and Receipt, Ciel and Map, Ciel and Tomya

August Cook-Off 2012

Forced Output, Code Crazy Minions, Asmany Number Verification

September Challenge 2012

Simultaneous Nim, Lights, Kisses & Hugs, Chef World, Racing Horses, Queries About Numbers, Knight Moving, ChefTown Parade, Three is Crowd

October Challenge 2012

Team Formation, Little Elephant and Order, Fierce Battles, Event Organizer, Maximum Sub-rectangle in Matrix, Blade Master, The New Scheme, Need More Diamonds

September Cook-Off 2012

Prime Permutations, Recipe Reconstruction, Carvans, Coal Scam

October Cook-Off 2012

Buying Sweets, Equalization, Tennis Tournament

November Challenge 2012

Lucky Balance, A Wonderful Chocolate, Delicious Dishes, Candy Collecting Game, Coin Flip, Jam Board, Many Left, Sridhar Likes Travelling, Arithmetic Progressions

November Cook-Off 2012

Little Elephant and Magic, Little Elephant and Permutations, Little Elephant and Divisors

December Challenge 2012

Sereja and Data Structures , Granama Recipes, Arigeom Beats, Book Exercises, Magic Rankings, Different Trips, The Uncountable Ways, Pizza Delivery, WordNinjas

December Cook-Off 2012

Packaging Cupcakes, Reversing directions

January Challenge 2013

Little Elephant and Alcohol, A New Door, Dividing Products, Hotel Balifornia, The Minimum Number Of Moves, End Of The World, A Fence for Byteland, Cucumber Boy and Cucumber Girl, Chef of the Year, Three Different Numbers

January Cook-Off 2013

Minimum Distance, Many Chefs, Defacing Score

February 2013 Challenge

Little Elephant and Cards, Buy1-Get1, Room Corner, Magic Board, Triangular Queries, Climbing Stairs, Vacation, Word Play, Efficient Painting

March Cook-off 2013

The Ball And Cups, Palindrome, Level Of Difference

April Cook-Off 2013

Andrew and the Birthday, Andrew and the Meatballs, Andrew and the Strings, Andrew and the Meatballs again

June Challenge 2013

Little Elephant and Mouses, Collecting Magical Berries, Just Some Permutations 3, Dessert Wizard, Two k-Convex Polygons, Predictopus, W String, Lapindromes

May Cook-off 2013

Subtraction Game 1, Subtraction Game 2

June Cook-Off 2013

Attic Crossing, Lyra and the Alethiometer

July Challenge 2013

Mountain Holidays

July Cook-off 2013

Chopsticks, Compressed String, A Plus B Again!

August Challenge 2013

Save The Princess, The Number Of Solutions, Chef and Segments, Sereja and Ballons

August Cook-Off 2013

Chef and The Right Triangles, Chef and The Divisibility Queries

September Challenge 2013

Little Elephant and Exams, Merciless Chef, Cool Guys, Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2, Two Roads

September Cook-Off 2013

Strange Matrix, Game, Code

October Cook-Off 2013

Polo the Penguin and the Numbers, Polo the Penguin and the Test, Polo the Penguin and the XOR

September Lunchtime 2013

Chef and Science

October Challenge 2013

Little Elephant and Bamboo, Sereja and Transformation

November Challenge 2013

Superpowers of 2, Yet Another Cute Girl

November Cook-off 2013

Am I a Fibonacci Number, Lowest Sum, Number of Paths, Rank of the Number

January Cook-off 2014

Chef and the Cake I, Subtraction Game, Interrogating Gangsters

April Cook-Off 2014

Snape and Ladder, BiCo Gaming Grid, Travelling Chef Problem, Distant Relatives

May Cook-Off 2014

Book Game with Chef, Divide the Cake, Ups and Downs

July Cook-Off 2014

Copy-Paste, Sum Queries, Friends

August Cook-Off 2014

Tree Game, Permutation Shuffle, Shooting

September Cook-Off 2014, ACM-ICPC Warm up

Sherlock and the Grid, Subarray GCD, Subarray LCM, World War 2

October Cook-Off 2014

Mahesh and his lost array

November Cook-Off 2014

Lost Graph, Most Distant Points, Brackets, Petersen Graph

December Cook-Off 2014

Matrix Again, Player, Good Joke!

February Challenge 2014

Draughts, Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Colored Array

May Challenge 2014

Little Elephant and Balloons, Chef and Strange Matrix

July Challenge 2014

Little Elephant and Painting, Garden Game, Chef and Frogs, Count Substrings, Reach The Point, Dish Owner, Lucky Game, Game of Numbers

August Challenge 2014

Mountain Holidays 2, Sereja and Shuffling, Little Elephant and T-Shirts, Chef and Reversing, Team Sigma and Fibonacci, The Leaking Robot, Earthquake, Cleaning Tables, Chef and Gift

September Challenge 2014

Sereja and Bubble Sort, Chef and Rainbow Array - 2, Chef and Swaps, Chef and Left-Right, Chef and sequence, Fun with Rotation, Flooring

December Challenge 2014

Chef and Bracket-Pairs, Sereja and GCD

February Lunchtime 2014

Sereja and ASum, Sereja and D, Sereja and Arrays

June Lunchtime 2014

Coprime Triples, The Smallest Pair

October Lunchtime 2014

Tanu and Head-bob, And Tuples, Physics Class, Cascading Style Sheets

January Cook-Off 2015

Tojo hates probabilities, Abhijeet and rectangles

January Lunchtime 2015

Piece of cake, Candidate walk, Just multiply

April Challenge 2015

Devus and their voting system

September Challenge 2015

Nikitosh and xor, Bank robbery

October Challenge 2015

Spheres, Rupsa and Equilateral Triangle

November Challenge 2015

Ingredients, Chef and collection of stamps

December Challenge 2015

Chef and cinema, Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Misha and Permutation, Chef and Filters, Chef and Girls

February Cook-Off 2015

Fit Squares in Triangle, Strategy for the World Cup

June Cook-Off 2015

Ankit, Srijan and a game of stone piles, Longest non regular parentheses sub-sequence, Strange operations

August Cook-Off 2015

Chef and the XORed Number , Chef and the Wildcard Matching

October Cook-Off 2015

Palindrome Pairs, Word Stem, Almost Sorted Permutation

December Lunchtime 2015

Ancient Berland Roads, Distinct Codes

January Long Challenge 2016

Sereja and Salesman, Rupsa and the Game, Churu and Balls, Chef and Time Machine

April Challenge 2016

Help Watson Escape, Fibonacci Queries, Chef and Ballons, Devu and good strings, Chef And Magical Path, Chef And Coloring

May Challenge 2016

Sereja and GCD 2, Chef and Big Soccer

July Challenge 2016

Chef and Segments, Chef and special numbers

September Challenge 2016

Chef and Friends

December Challenge 2016

Train Partner, Kth Max Subarray, Chef and Finding Direction, Kirito in labyrinth, Edit Distance Revisited, Roses for Alexey, Our Base is Under Attack, Bear and Three Colours

February Cook-Off 2016

Puppy and Board, Puppy and Sum

August Cook-Off 2016

Tweedle-Dee and Tweedle-Dum

February Challenge 2017

Chef and Yoda, Eugene and big number, Interval Game, Chef and Triangles, Chef and his Best Friend, Chef and His Apartment Dues

May Challenge 2017

Blocked websites

June Challenge 2017

Chef and Prime Queries, A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets

May Cook-Off 2017

La Liga, Balanced Array

June Cook-Off 2017

Ada and crayons, Knight Covering, SnackUp

October Cook-Off 2017

Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries

December Cook-Off 2017

Minimum SubArray, Beautiful Array, Football Match

January Challenge 2018

Killing Monsters, K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers

September Mega Cook-Off 2018 Division 1

OneTwo, Make a Permutation

March Lunchtime 2018 Division 1 (Unrated)

Partitions, Three Integers

December Challenge 2018 Division 1

Max and Electrical Panel, Chef and Interactive XOR

March Challenge 2019 Division 1

Chef and Soccer, Cheating on Queue, Yet Again a Subarray Problem, Matchable Permutations

March Cook-Off 2019 Division 1

XOR N-bonacci Sequence, Markers and Caps

May Cook-Off 2019 Division 1

Misha and Nice Sets, Bitsetbaba and Power Grid, Expected Xor, Searching for a Biclique

December Challenge 2019 Division 1

Sticky Notes

March Challenge 2020 Division 1

Lasers Everywhere

March Cook-Off 2020 Division 1

Mysterious Sequence, Maximize Letter Beauty, Random Chocolates

August Cook-Off 2020 Division 1

Polygon Relationship, Beautiful Subsequence

June Lunchtime 2020 Division 1

Maximum AND

January Challenge 2021 Division 2

Chef and Ants, Expected Number of SCCs, Watching CPL, Fair Elections

December Cook-Off 2020 Division 1

Self-Destructing Strings

January Cook-Off 2021 Division 2

Mex Subsequence, Prime Tuples, Maximise Islands

December Lunchtime 2020 Division 1 (Unrated)

Three Letters, One Zero Swaps

January Lunchtime 2021 Division 1 (Unrated)

Dreams of Divisibility, Even Sum

September Cook-Off 2020 Division 1

Maximise Subsequence Value

May Challenge 2021 Division 1 (Unrated)

Xor Equality

August Cook-Off 2021 Division 1

Odd Array, Different String, Interactive Equivalency, Clear the Array

November Cook-Off 2021 Division 1

Non-Decreasing Subsequence of size K, Product Pain

February Cook-Off 2022 Division 1

Xor Becoming Uncanny, Perfect Permutation, Mango Market

April Cook-Off 2022 Division 1

Chef Goes Shopping

February Cook-Off 2023 Division 2 (Rated)

Take Not Less, Alice Potter And Dumbledore Army, Pasha and Good Ones, Permutation and Modulus, Minimum Beauty

Starters 132 Division 1 (Rated till 6 Stars)

ALIEN-OR, Optimal Flip, Random Array, Prime Query

Starters 134 Division 1 (Rated till 6-Stars)

Count Good RBS, Origin, Prison Escape, 3out1in

Starters 135 Division 1 (Rated till 5-Stars)

Graph Cost, Change A to B

Starters 138 Division 1 (Rated till 6-Stars)

A power B mod C , TRIPLE PRIMES, K Subarray Products, Prefix Suffix Inequality, Breezy Mode Problem, Distinct Substring

Starters 139 Division 1 (Rated till 5-Stars)

Sum of N, Destroying Bridges Part 2

Starters 140 Division 1 (Rated till 5-Stars)

Split Permutation, Trick Or Treat, Break The String, Tree Removal

Starters 142 Division 1 (Rated till 5-Stars)

The Cards Machine, Array Removal, Number Hunt

Starters 143 Division 1 (Rated till 5-Stars)

Non-Divisor Array, Max Min and Length, Spread of Ratism

Starters 144 Division 1 (Rated)

Find P, Minimise Inversions, Largest K

Starters 145 Division 1 (Rated till 6-Stars)

Make Bob Win , Square String

Starters 146 Division 1 (Rated till 5 stars)

Bouncing Ball, Permutation Construction

Starters 148 Division 1 (Rated till 6 stars)

Beautiful Flip

Starters 149 (Rated till 5 stars)

Maximise Sum, Chef Loves Beautiful Strings (Hard Version), Chef Loves Beautiful Strings (Easy Version)

Starters 150 (Rated till 6 stars)

Equal Pairs (Hard), Min Ops (Hard), Replacing Game

Starters 151 (rated till 5 stars)

Ball Game, Sequence Search, RGB Grid (Easy), RGB Grid (Medium)

Starters 152 (Rated till 6 stars)

Completion (Hard), Maximize Hamming Distance, Completion (Easy), Anti-Palindrome Queries

Starters 154 (Rated till 6 stars)

Count Winning Subarrays, GCD and XOR, Triangle Count (Easy)

Starters 155 (Rated till 5 stars)

GCD to 1 (Hard), Replace With First, Prefix Suffix Min Max

Starters 157 (Rated till 5 stars)

Small, Smaller, Smallest, MEXtreme Divisibility, Normal is Good, Unmedian

Starters 159 (Rated till 5 stars)

Glass Bridge (Easy)

Starters 160 (Rated till 5 stars)

Palindrome Love, Buying Order (Easy), Buying Order (Hard)

Starters 161 (Rated)

Red-Blue Sort, One To Three, Quick Exit

Starters 162 (Rated till 5 stars)

Empty the String, MEX of XOR, Permutation Mod K

Starters 163 (Rated till 5 stars)

Tree Sum is Fun !, Nice Array, Permutation Pair, Sort Them, Lexio Swap

Starters 164 (Rated till 5 stars)

Fill the Blanks, Halloween Array, Connecting Wells

Starters 165 (Rated till 6 stars)

A to B, Stable Array, Reverse and Alternate (Count)

Starters 166 (Rated till 6 stars)

All Equal, Distinct Power, Divisors Array (Hard Version), Divisors Array (Easy Version), Costly Permutations, Chefland Library

Starters 167 (Rated till 5 stars)

Alternate Universe, Temperature Balance, Lottery Tickets, Sum Over Subarrays, Grid Construction (Even), Grid Construction (Odd)

Starters 168 (Rated till 6 stars)

No Two Alike, Binary Removals, Xoperations, Equate XOR

Starters 171 (Rated till 5 star)

Advitiya Security Vault, White Wall, Volcanic Eruption

Starters 172 (Rated till 5 stars)

Transform String, AndOr, Tactical Removal

Starters 174 (Rated upto 2700)

GCD Add Size, Meximal Sum, Mystic Slimes

Starters 175 (Rated till 5 stars)

Alternate It!, Multiplexer

Starters 176 (Rated till 4 star)

Same And, Friendly Binary Strings, Mex-P Tree (Hard), Costly Summit, Mex-P Tree (Easy)

Starters 177 (Rated till 5 star)

Blocks on a Tree

Starters 178 (Rated till 6 star)

Smoothly Increasing , Big Difference

Starters 179 (Rated till 5 star)

Product Path, Station Allocation

Starters 180 (Rated till 6 star)

Shall we play a game, Huh, Easy, Counting Problem

Starters 181 (Rated for all)

The Best Matrix, Tree Colouring (Hard), Flip Prefix

Starters 182 (Rated till 5 star)

Minimize the Sum, Palindromic Score

Starters 183 (Rated till 6 star)

Complete MST, S to T

Starters 184 (Rated till 5 star)

Second MEX, Adjacent OR, Front or Back, Double or Append

Starters 185 (Rated till 5 star)

GCD Summation, Asymmetric Cookies, Array Deletion Game, Range Maximum Deconstruction (Easy)

Starters 187 (Rated till 6 star)

Anti-Subarray Sum, OR What, Distinct Representations

Starters 188 (Rated till 6 star)

K Boxes, Inversion Queries, Yet Another Monsters Problem

Starters 189 (Rated till 5 star)

Number Walks, Blocks in a String, Create Binary String, Avoid Primes, Sortable Subarrays (Easy)

Starters 190 (Rated till 5 star)

Subsequence Sort, Min-Max Deletion

Starters 191 (Rated till 6 star)

Add 1 or 2, Coloured Array, Grid Path (Easy), Grid Path (Hard), Permuted Greater than 2

Starters 192 (Rated till 6 star)

Equate XY, No 3 Please!

Starters 193 (Rated for all)

Mex Tree (Min), Add Permutation

Starters 194 (Rated for all)

Terminal States, Munchys Modulo, Good Arrays (Cyclic), Good Arrays (Not Cyclic)

Starters 195 (Rated till 5 star)

String Deletions, Game (Easy)

Starters 196 (Rated till 5 star)

Unsorted Sorting, Beauty in Everything, Append Average, Swap Sum

Starters 197 (Rated till 6 star)

Counting (Infinite), Expected Cost, Good Ranking (Pair), Split

Starters 198 (Rated till 5 star)

Restricted Removals, Minimize Maximum Mex

Starters 199 (Rated till 5 star)

Perfect Ranges, Fence Colouring, Grid MEX

Starters 200 (Rated for all)

Permutation Counting (Easy), Lexicographic Matching, Minimum Set, Restrict Palindromes

Starters 202 (Rated for 5 star)

If Only I Could Read, Min-Max Deque (Easy)

Monday Munch - DSA Challenge

Diameter of the tree, Search an element in an array, ZigZag Traversal, Merge two sorted arrays, Check Palindrome, Maximum Sum of K Elements

Starters 203 (Rated till 5 star)

MEX on Ranges, Set To Median, Maximum MST

Starters 206 (Rated till 5 star)

Cyclic Shift Minimization, Product Equal Sum, Min Steps, Gladiator Fighting

Starters 207 (Rated till 5 star)

Adjacent Sums, Make Subarray, Maximum Smaller

Starters 208 (Rated till 6 star)

GCND, Cycle and Add

Starters 209 (Rated till 5 star)

Binary Love, Tactical Conversion, High Score (Easy Version)

Starters 210 (Rated till 5-star)

Delete Sorted Subsequence, Min Modular Subarray, Make All, First Element Counting

Starters 211 (Rated till 6 - star)

Subarray Maximums, No Doubling, Tournament Rigging (Minimum)

Monday Munch - DSA Challenge 09

AND Plus OR, Get all ancestors, Print Pattern, Search Word, Largest Subarray with Sum 0, Is the number divisible by 5

Starters 212 (Rated till 6 star)

Interesting Binary (Easy Version), Distinct Fun, Counting MEX Is Fun, Binary Flip

Starters 213 (Rated till 5 star)

Mean Difference (Easy), Chef and String, Separation, Maximum Product Walk

Starters 214 (Unrated)

Crazy Permutations, Lexicographically Minimum Tree Traversal, Scam, Delete For Fun

Monday Munch - DSA Challenge 12

Intersecting arrays, Color Sorting Challenge, Covering, Make 2 digits, Chef and String, Hail XOR

Starters 215 (Rated till 6 star)

Intersecting Intervals (Easy), Product Sum Arrays (Easy), Product Sum Arrays (Hard), Differing Values

Monday Munch - DSA Challenge 13

Count of Maximum, Cost of Groceries, Recover the BST, All Possible Subsets, Generate All Possible Pairs of Balanced Parenthese, Less than 10

Monday Munch - DSA Challenge 14

Reverse the Segment, Chef and Nested Parentheses, Delete All Occurrences of a Key in a Doubly Linked, Complete the resolution, DNA Storage, Largest Y

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