Raj Shah

Practice: 

Transform the Expression, Factorial, Small factorials, Ambiguous Permutations, Enormous Input Test, Sums in a Triangle, Turbo Sort, ATM, Life, the Universe, and Everything, The Lead Game, Cutting Recipes, Holes in the text, Three Way Communications, Ciel and A-B Problem, Little Elephant and Candies, Racing Horses, Ciel and Receipt, The Minimum Number Of Moves, Packaging Cupcakes, Snape and Ladder, Lapindromes, Number Mirror, Compilers and parsers, Chef and Remissness, Count Substrings, The Smallest Pair, Tanu and Head-bob, Chef and Notebooks, Good Joke!, Fit Squares in Triangle, Piece of cake, Lucky Four, Version Control System, Devu and Grapes, Add Two Numbers, Find Remainder, First and Last Digit, Smallest Numbers of Notes, Sum of Digits, Reverse The Number, Helping Chef, Total Expenses, Id and Ship, Gross Salary, Valid Triangles, Grade The Steel, GCD and LCM, Second Largest, Small Factorial, Primality Test, Finding Square Roots, The Block Game, Farmer And His Plot, Chef and Dolls, Chef and his Sequence, Devu and friendship testing, Rupsa and the Game, Cops and the Thief Devu, Chef and Two Strings, Greedy puppy, Forgotten Language, Chef and the Wildcard Matching, Minimum Maximum, Sum of palindromic numbers, Chef And Operators, Mahasena, Mutated Minions, Chef and Subarrays, Chef and Fruits, Malvika is peculiar about color of balloons, Puppy and Sum, Movie Weekend, Cats and Dogs, Coins And Triangle, Kitchen Timetable, One more weird game, Chef and Proportion, Task for Alexey, Watson and Digit Sums, Sebi and the highway, Nothing in Common, Bear and Ladder, Infinite OR Game, Statistics Construction, Subsequence Equality, Chef and Cook-Off Contests, Buggy Calculator, Coder Life Matters, K-Concatenation

October Challenge 2016: 

Chef and Three Dogs, Chef and Keyboard

December Challenge 2016: 

Train Partner

February Challenge 2017: 

Chef and His Apartment Dues

March Challenge 2017: 

Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix

Past INOI Problems: 

Calvins Game

April Challenge 2017: 

Dish Of Life, Bear and Row 01, Similar Dishes

May Challenge 2017: 

Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers

June Challenge 2017: 

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

July Challenge 2017: 

Chef and Sign Sequences, Tree Expectancy, Whats in the Name, Calculator , IPC Trainers

August Long Challenge 2017: 

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

September Challenge 2017: 

Sereja and Commands, Chef and Pick Digit, Minimum Good Permutation, Fill The Matrix, Little Chef and Sums

October Challenge 2017: 

Counter Test For CHEFSUM, A Balanced Contest, Chef and Cycled Cycles, Chef and a great voluntary Program, Max Mex

December Challenge 2017: 

Total Diamonds, Chef And his Cake, Penalty Shoot-out, Chef and Hamming Distance of arrays

April Cook-Off 2017: 

Bear and Candies 123, Bear and AB

June Cook-Off 2017: 

Ada and crayons

April Lunchtime 2017: 

Bear and Segment 01

May Lunchtime 2017: 

Prefix Inversions

July Challenge 2018 Division 1: 

Reach Equilibrium, No Minimum No Maximum

November Challenge 2018 Division 1: 

Magician versus Chef 2, Chef, Primes and Trees (Challenge), Appy Loves One, Good Median

February Challenge 2019 Division 1: 

Deputy Chef, Art of Balance, (Challenge) Chef with Orchestra in the Kitchen, Xor Decomposition, Chef and Secret Ingredients, Guess It Right, Manhattan Rectangle

April Challenge 2020 Division 1: 

Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Factor Tree, Leaked Answers (Challenge)

May Challenge 2020 Division 1: 

Triple Sort, Chef and Bitwise Product

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