Roshan Sah

January Challenge 2021 Division 3

Chef and Division 3

April Challenge 2021 Division 3

Valid Pair, World Record, Strong Language

SPYBITS IIT BHU Division 3 (Rated)

A - Save Water Save Life

May Challenge 2021 Division 3 (Rated)

Xor Equality, Tic Tac Toe, Golf, Solubility

June Challenge 2021 Division 3 (Rated)

Bella ciao, Summer Heat

July Challenge 2021 Division 3 (Rated)

XxOoRr, Maximum Production, Relativity

August Challenge 2021 Division 3 (Rated)

Olympics Ranking

CodeChef Starters 9 Division 3 (Rated)

Black cells in a chessboard, Large Square, Bus full of passengers

AlgoManiac - Code For Future Division 3 (Rated)

The Old Saint And Three Questions

September Challenge 2021 Division 3 (Rated)

Shuffling Parities, Airline Restrictions, Travel Pass

CodeChef Starters 12 Division 3 (Rated)

Good Weather, Make it Divisible

CodeChef Starters 13 Division 3 (Rated)

Chef in Vaccination Queue, The Preparations, Magical Doors

CodeChef Starters 14 Division 3 (Rated)

Odd GCD, Diagonal movement, FIXFIX, RCB and Playoffs

November Challenge 2021 Division 3 (Rated)

Weird Palindrome Making, Equal Coins, Which Fuel is Cheaper

CodeChef Starters 22 Division 3 (Rated)

An Interesting Sequence, Even Subset Xor, Equal Card Game, Elections in Chefland

January Long 2022 - I, Division 3 (Rated)

Keplers Law, Prime in a binary string, Covid Spread

January Long 2022 - II, Division 3 (Rated)

Crying Colours, TCS Examination, Chef and Fixed Deposits

CodeChef Starters 24 Division 3 (Rated)

Anti Palindrome, Avoid Contact, Badminton Serves, Yet Another Constructive Problem, EVM Hacking

CodeChef Starters 28 Division 2 (Rated)

Permutation Xority, Count the Holidays

March Long One 2022, Division 2 (Unrated)

Akash and Function

CodeChef Starters 31 Division 2 (Rated)

Alternating String, Sign Moves, The Unchanging OR

CodeChef Starters 33 Division 3 (Rated)

Minimum Cars required, Non Adjacent Flips, Make Them Equal

Starters 41 Division 4 (Rated)

Equal Integers, Chef and Brain Speed, Chef and Chocolates, Path Parity, Determine the Winner

Starters 51 Division 4 (Rated)

Split N, Final Population, Different Medians, TV Discount, Dominant Element

Starters 53 Division 4 (Rated)

Car Trip, Greater Average, Odd Pairs, Make A and B equal, Weights

Starters 55 Division 3 (Rated)

Balls and Boxes, Permutation Clear, Mean and Median, Broken Phone

Starters 58 Division 3 (Rated)

Break the elements, Remove Bad elements

Starters 61 Division 3 (Rated)

Minimise LCS, Different Consecutive Characters , Odd Sum Pair

Starters 66 Division 3 (Rated)

Just Like Mob!, Binary Battles, Monopoly in Chefland

Starters 68 Division 3 (Rated)

Boring String, Expense List, Bull or Bear, Make AP, Make Money

Starters 69 Division 3 (Rated)

Akash and Dinner, Convert to permutation

December Long 2022 Division 3 (Rated)

Reach fast, Maximise XOR

Starters 87 Division 3 (Rated)

Return the Change, Existence, AB plus C

Starters 93 Division 3 (Rated)

Break Free, 7 Rings, Problem

Starters 98 Division 3 (Rated)

FIND A and B, Airport Management, Ball Distribution

Starters 99 Division 3 (Rated)

Card Swipe, Endless Appetizers, Exclusion-Inclusion

Problems Authored (14)

Problems Tested (7)

Editorials Contributed (0)

No Contribution