Uday

Practice: 

Row and Column Operations, Shift The String, Brackets, Chef and Polygons, Set Difference , Tickets, Devu and decorating birthday cake, Stacks, Oracle Devu and Longest Common Subsequence, Chef and Sub Array , Chef And Special Dishes, Pairwise union of sets, Minion Chef and Bananas, Chefina and Swap, XOR Equal

February 2013 Challenge: 

Buy1-Get1

February Cook-Off 2013: 

Lack of Logic

April Challenge 2014: 

Shortest Path in Binary Trees, Farmer Feb

October Challenge 2014: 

Magical Girl and Colored Liquid Potions, Chef and Ground

November Challenge 2014: 

Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome

December Challenge 2014: 

Chef and Apple Trees

January Challenge 2015: 

Chef and Stones, Sereja and Votes, Gcd Queries

January Cook-Off 2015: 

Suraj goes shopping

January Lunchtime 2015: 

Piece of cake

February Challenge 2015: 

Chef and Chain, Let us play with rank list, Chef and Equality

March Challenge 2015: 

Chef and Notebooks

April Challenge 2015: 

Chef and Interview, Broken Telephone, Chef and Piano Scales

May Challenge 2015: 

Chef and new recipe

June Challenge 2015: 

Chef and Memory Limit

July Challenge 2015: 

Chef and Cube, Na2a and lucky stone, Bread

August Challenge 2015: 

Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick

September Challenge 2015: 

Chain of Doughnuts, Count Steps in Matrix

October Challenge 2015: 

Count Subarrays, Who dares to be a millionaire

December Challenge 2015: 

Chef and the stones, Plane Division

February Cook-Off 2015: 

Fit Squares in Triangle

May Cook-Off 2015: 

Devu and friendship testing

July Cook-Off 2015: 

Cops and the Thief Devu

September Mega Cook-Off 2015: 

Forgotten Language

May Lunchtime 2015: 

Devu and Grapes

Code Brunch: 

Rising population

March Challenge 2016: 

Palindromic substrings, maximize the sum

April Challenge 2016: 

Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring

March Cook-Off 2016: 

Digital clock, Alternating subarray prefix

February Challenge 2017: 

Chef and His Apartment Dues

March Challenge 2017: 

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

January Lunchtime 2017: 

Nothing in Common

April Challenge 2017: 

Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes

May Challenge 2017: 

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

June Challenge 2017: 

A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets

July Challenge 2017: 

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

December Challenge 2017: 

Chef And his Cake, Penalty Shoot-out

April Lunchtime 2017: 

Bear and Segment 01

January Challenge 2018: 

K-Concatenation, Maximum Score, Rectangle, (Challenge) Chef and Palindromes

March Challenge 2018 DIV 2: 

A Big Sale, Mix the Colors, Chef and Glove

October Challenge 2019 Division 2: 

Phone Prices

January Challenge 2020 Division 2: 

Chef and Dynamo, Breaking Bricks

February Challenge 2020 Division 2: 

School of Geometry, Hard Cash

September Challenge 2020 Division 2: 

A Problem on Sticks, Ada Matrix

October Challenge 2020 Division 2: 

Positive AND, Covid Run, Chef and Easy Queries

November Challenge 2020 Division 2: 

Ada and Dishes

May Challenge 2021 Division 3 (Rated): 

Xor Equality, Golf, Solubility

September Challenge 2021 Division 3 (Rated): 

Shuffling Parities, Airline Restrictions, Travel Pass

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