Abhishek Tiwari

Practice: 

Prime Generator, Transform the Expression, Factorial, Small factorials, Poker, Ambiguous Permutations, Enormous Input Test, Sums in a Triangle, Turbo Sort, Not a Triangle, GCD2, ATM, Paying up, The Way to a Friends House Is Never Too Long, Life, the Universe, and Everything, A Very Easy Problem!, Paying up, Johnny and the Beanstalk, The White Knight, Nuclear Reactors, Sum of pairs, Nikhils Dungeon, Prime Palindromes, The Lead Game, Permutation Cycles, Discrepancies in the Voters List, The Best Box, Yet Another Number Game, Gravel, Arranging the Appetizers, Cleaning Up, A Simple Equation, Decreasing String, Stepping Up, Birthday Candles, Cooling Pies, Cutting Recipes, Number Game Revisited, The Morning Commute, Pairing Chefs, Holes in the text, Chef team, Three Way Communications, Tree Product, Money Transformation, A Prime Conjecture, Internet Media Types, Popular Rice Recipe, Distribute idlis Equally, Correctness of Knight Move, Misinterpretation, Garden Squares, Open the Dragon Scroll, Last Digit Sum, Digit Rotation, Hotel Bytelandia, Subanagrams, Ciel and New Menu, Ciel and A-B Problem, Lucky Long, Word Couting, Home Delivery, Count of Maximum, Spoon in Matrix, Fit to Play, Daily Train, Double Strings, Jewels and Stones, Ciel Numbers II, Little Elephant and Strings, Lucky lucky number, Little Elephant and Candies, Top Batsmen, Remember the recipe, Kisses & Hugs, Little Elephant and Bombs, Fierce Battles, Little Elephant and Lemonade, My Fair Coins, Gift Rift, Arranging Cup-cakes, Event Organizer, Matchsticks, Range of Data, Delivery Boy, Racing Horses, Ciel and Receipt, Ciel and Tomya, Code Crazy Minions, Granama Recipes, Coin Flip, Recipe Reconstruction, Carvans, Buy1-Get1, Book Exercises, Tourist Translations, Magic Rankings, Little Elephant and Permutations, Buying Sweets, Little Elephant and Divisors, The Minimum Number Of Moves, Pizza Delivery, Packaging Cupcakes, Reversing directions, Climbing Stairs, Approximately, Minimum Distance, Many Chefs, Three Different Numbers, Snape and Ladder, The Ball And Cups, Palindrome, Fire Escape Routes, Lack of Logic, Row and Column Operations, Maximum Weight Difference, Name Reduction, Your Name is Mine, Andrew and the Meatballs, Dessert Wizard, Andrew and the Meatballs again, The Probability Of Winning, Lapindromes, Subtraction Game 1, Subtraction Game 2, Chef and Walking on the rectangle , Chopsticks, A Plus B Again!, Count K-Primes, Attic Crossing, Lyra and the Alethiometer, Tywins Tactics, Draughts, Splitting Candies, CAO Stage-3, Chef and The Right Triangles, Yet Another Cute Girl, Strange Matrix, Kamehameha, Polo the Penguin and the Numbers, Polo the Penguin and the XOR, Statues, Line Problem, Am I a Fibonacci Number, Lowest Sum, Trees and Subtrees, Rank of the Number, Chef Goes Through Segments, Mike and Task Packages, Mike and Matrices , Chef and the Cake I, GCD Sum, Chef and Way, Mike and Stamps, Alok-nath and His Sanskars, Chef and Ground, Chef and Subarray, Divide the Cake, Ups and Downs, Count Substrings, Divisible Subset, Queries on the String, Sherlock and the Grid, Subarray GCD, Copy-Paste, Sum Queries, Chef and Gift, Chef and easy problem, Distinct Characters Subsequence, Chef and A Large Permutation, The Army, Walk on the Axis, XOR with Subset, Chef and Strings, Sereja and Votes, One Dimensional Kingdoms, Suraj goes shopping, Tojo hates probabilities, Exponential, Robot and Paths, How to Minimize a String, Puppy and game, Chef and the XORed Number , Chef and Cycled Cycles, Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu, The Nights Watch, Art of Balance, Yet Again a Subarray Problem, Fencing, Guddu and his Mother, Even Edges, Dummy Palindromic Strings, Grid Tour, CV, Dilemma, Chef and DAG, Zombie and the Caves, Chef Feeds Cats, Chef and Football Match, Lasers Everywhere, Factor Tree, Sorting Vases, Chef and Bitwise Product, Tower Counting, Simple Operations, Inversions in Permutations, Dot Time, Xor Jar Muluk Tar, Triangle Query, Chef, Chefina and Their Friendship, Roads in Chefland, A Special Tree, Chef and Sorting, Tree Distances, A Short Counting Problem, Symmetric Swaps, Minimize the Maximum, K Increment Palindrome

September Challenge 2013: 

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

September Cook-Off 2013: 

Code

October Cook-Off 2013: 

Polo the Penguin and the Test

LogiCode 2013: 

Buildings, Piles

October Challenge 2013: 

Little Elephant and Bamboo, Helping Lira, Maxim and Dividers, Sereja and Transformation, Yet Another Nice Girl, Edit Distance on Grid

UVCE NCode- October 2013: 

Runner, Jumpimg Gopal, Perfect Hill, City Shortcuts, Bot Moves

./ Execute 2013: 

Special Digit

November Challenge 2013: 

Superpowers of 2, Sereja and Vectors, Uncle Johny, Square Digit Squares, Missing some chairs

UVCE N-Code November 2013: 

UVCE Hostel, The Parking Lot

December Challenge 2013: 

Art in Digital Age, Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries

December Cook-off 2013: 

Chef and Girlfriend

January Challenge 2014: 

Magic Trick, Sereja and Graph, Meteor, Bon Appetit, Please like me, Chef and Feedback

February Cook-Off 2014: 

Chef and Remissness, Chef and Kingship

March Cook-Off 2014: 

Dividing Stamps

February Challenge 2014: 

Make It Zero, Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Colored Array, Make It Zero 2

March Challenge 2014: 

Team Split, Binary Tournament, Walk, Little Chef and Numbers

April Challenge 2014: 

Sereja and Permutation, Counting Matrices, Farmer Feb, Chef and Digits, Divide the Tangerine, Shortest Path in Binary Trees

May Challenge 2014: 

Compilers and parsers, Chef-jumping, Chef and Strange Matrix, Stone

December Challenge 2014: 

Chef and Apple Trees

May Lunchtime 2014: 

Approximately II

January Challenge 2015: 

Chef and Stones, Gcd Queries

January Lunchtime 2015: 

Piece of cake

February Challenge 2015: 

Chef and Chain, Chef and Strange Formula, Let us play with rank list, Jigsaw Puzzle Solving, Chef and Equality

August Challenge 2015: 

Gravity Guy, Cooking Machine, Aditi and Magic Trick

Kurukshetra 2015: 

Thiruttu pasanga 2

Code.IT(101): 

Median, Connecting Islands, Complementary Couples

Rise of AlgoManiacs: 

Chhota Bheem and the Game of Anagrams

June Challenge 2016: 

Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array

July Challenge 2016: 

Andrash and Stipendium, Chef and Tetris, Chefland and Electricity

September Challenge 2016: 

Chef and digits of a number, Faded Palindromes

August Long Challenge 2017: 

Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates

February Challenge 2019 Division 2: 

Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef

March Challenge 2019 Division 2: 

Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit

April Challenge 2019 Division 2: 

Friend or Girlfriend, Maximum Remaining

August Challenge 2019 Division 2: 

Football, Distribute Apples

October Challenge 2019 Division 2: 

Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices

March Challenge 2020 Division 2: 

XOR Engine, Ada Bishop 2, Pintu and Fruits

April Challenge 2020 Division 2: 

Strange Number, Squared Subsequences, Ready Bitwise, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue

May Challenge 2020 Division 2: 

Triple Sort, Coronavirus Spread, (Challenge) Nanobots, Isolation Centers

April Cook-Off 2020 Division 2: 

Matrix Decomposition, Lift Requests

April Lunchtime 2020 Division 1: 

Positive Mex

Upgrad IIT Madras ML and Cloud All India Selection Contest: 

The Best Man, Anagrams, Mean of a dataset, Average, Missing value in the series, Algebra, Fractions, Probability 1

March Cook-Off 2021 Division 2: 

Matrix XOR, Guess the Number

April Cook-Off 2021 Division 2: 

OR of ANDs, Chocolate Monger

April Lunchtime 2021 Division 2: 

Chef in Heaven , Bench Press, Array Rotation

January Long 2023 Division 2 (Unrated): 

Asymmetric Swaps, Array Halves

Starters 77 Division 2 (Rated): 

Concat Palindrome, Three Numbers

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