Hasan

December Challenge 2012

Magic Rankings, Granama Recipes

February 2013 Challenge

Little Elephant and Cards

April Challenge 2013

Little Elephant and Music, Barcelona Gameplay Tactics, Fault Tolerance, Maximum Weight Difference, Levy Conjecture

July Challenge 2014

Garden Game, Chef and Frogs, Chef and Rectangle Genome, Count Substrings, Reach The Point

November Challenge 2014

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

August Challenge 2015

Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia

July Challenge 2016

Chefland and Electricity, Chef and Tetris, Chef and Robots Competition, Andrash and Stipendium, Chef and special numbers

September Challenge 2016

Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, Chef and calculation

February Lunchtime 2017

Bear and House Queries, Bear and Milky Cookies, Bear and Bribing Tree, Bear and Oveflow Points

July Lunchtime 2017

Find the Maximum Value, Divide the Set, Good Pairs

March Lunchtime 2022 Division 1

Mathology, Winter, Adjacency Love, Separate Them All

Starters 115 Division 1 (Rated)

Subtraction Sequence I, Subtraction Sequence II, Greedy LIS Algorithm, Binary Grid Forces, Make All Zero

Problems Authored (117)

Problems Tested (73)

Editorials Contributed (14)