Mohsen Mahroos
- codingknight
Egypt- Professional
- Cairo University
- No Active Plan. View Details
Activity Heat Map
Learning Paths (0)
Practice Paths (4)
Contests (69)
April Challenge 2018 Division 2
Weight of Numbers, Highway Crossing, Count Good Prefixes, Average of Pairs, Workers
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
January Challenge 2019 Division 2
Yet Another Problem About Sequences, Lucky Number Game, Distinct Pairs, Fancy Quotes
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit
March Lunchtime 2019 Division 2
Corrupted Seven-Segment Display, Testing Robot, Pogo Stick Competition
June Challenge 2019 Division 2
Road Signs, Chef and Proxy, Lent Money, Guddu on a Date, Chef and Ingredients, Sum and GCD, (Challenge) SnackDown 99
August Challenge 2019 Division 1
Guddu and his Mother, Dilemma, Maximize an Expression
August Lunchtime 2019 Division 1
Destroy Cells
September Challenge 2019 Division 1
Chef Designed a Network, (Challenge) Sebi and CPU Design
October Challenge 2019 Division 1
Even Edges, Bacterial Reproduction, Chef and Maximum Star Value, Array Modification
November Challenge 2019 Division 1
Physical Exercise, From Zero to Infinity
December Challenge 2019 Division 1
Chefina and Ranges, Binary XOR, (Challenge) Cubical Virus
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Chefland Army, (Challenge) Building Anthills
February Challenge 2020 Division 1
Chef and Railway Stations, Expected Change, No Change Required, (Challenge) Raisins, Long Contest and Cook Off Overlaps
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
Biteration #2 (Rated for Division 2)
A - Books, B - Candy Love, C - Chef and Maths
International Coding Marathon (Rated for all)
Lavanya Loves DFA, Mr Pr in a Dilemma
UWCOI 2020 (Rated for all)
Button Pairs, Find maximum in an Array
June Challenge 2020 Division 1
The Tom and Jerry Game!, Covid Sampling (Challenge)
July Challenge 2020 Division 1
Missing a Point
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements
September Challenge 2020 Division 1
Chefina and Swap, Chef and Trump Cards, Find XOR, Ada Matrix
October Challenge 2020 Division 1
Positive AND, Replace for X, Adding Squares
January Challenge 2021 Division 2
Expected Number of SCCs, Watching CPL, Fair Elections
December Challenge 2020 Division 1
Positive Prefixes, Even Pair Sum
Byterace IIT Patna Division 2 (Rated)
The Begining Era Of Cyberverse, Cybalphabit
February Challenge 2021 Division 2
Frog Sort, Team Name, Chef and Meetings, Prime Game, Multiple Games, Maximise Function, Highest Divisor
March Challenge 2021 Division 2
Interesting XOR!, Dense Graph, Chef and Groups, College Life 4, Consecutive Adding, Paparazzi Gennady, Space Arrays, Wireless Electricity (Challenge), Maximum Topological Sort, No Time to Wait
April Challenge 2021 Division 2
Binary String MEX, Tree Permutations, Worthy Matrix, Chef and Dice, Valid Pair, World Record, Strong Language, Boolean Game
May Challenge 2021 Division 2 (Rated)
Valid Paths, Tree House, An Interesting Sequence, Xor Equality, Tic Tac Toe, Modular Equation
June Challenge 2021 Division 2 (Unrated)
Minimum Dual Area, Shortest Route, Bitwise Tuples, Bella ciao, Summer Heat, Minimum Subtree Cover
July Challenge 2021 Division 2 (Unrated)
XxOoRr, Chef vs Bharat, Optimal Denomination, Maximum Production, Relativity, K Path Query
July Lunchtime 2021 Division 2
Beautiful Pairs, Array Rotation Returns
August Challenge 2021 Division 2 (Unrated)
Special Triplets, Array Filling, Geometry 1, Chef and Bulb Invention, Problem Difficulties, Olympics Ranking
AlgoManiac - Code For Future Division 2 (Unrated)
Say No To Drugs, The Rumbling, The Old Saint And Three Questions, Meet In The Median
September Challenge 2021 Division 2 (Unrated)
XOR Equal, Shuffling Parities, Minimize Digit Sum, Treasure Hunt, 2-D Point Meeting, Airline Restrictions, Travel Pass, Covaxin vs Covishield, Minimum Digit Sum 2
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
October Challenge 2021 Division 2 (Unrated)
Longest AND Subarray, Digit Removal, MEX-OR, Hidden Points
SnackDown 2021 - Online Round 1A
Round Robin Ranks , Dance Moves, Min Max LCM
SnackDown 2021 - Online Round 1B
Queens Placement , Largest Laddu, Help Nishant
November Challenge 2021 Division 2 (Unrated)
Flip or Compress, Functional Array, Wildcard Replacement, Xor Equation, Weird Palindrome Making, Hill Sequence, Equal Coins, Which Fuel is Cheaper, Maximise the bridges, Convex Hulk
Code: Nium Challenge
Alphabet Difference, Divide Students Into Classes
C.O.D.E.R.S Division 2 (Rated)
The One On The Last Night, The One with Ross Wedding
FizzBuzz Division 2 (Rated)
Magical Planks, Can_Reach
December Challenge 2021 Division 2 (Unrated)
Valleys and Hills, Rock Paper Scissors, Pyramid Traversal, List of Lists, Squares Counting
CodeChef Starters 21 Division 2 (Rated)
Akash and Grid, ChefWM, And Or Union
CodeChef Starters 22 Division 2 (Rated)
Even Subset Xor
Code Drive Division 2 (Rated)
Sum this up, Again XOR problem, Maximum Factors Problem, Count Number of Peaks
January Long 2022 - I, Division 2 (Unrated)
Keplers Law, Prime in a binary string, Retrieve back the Array, Covid Spread, Chef and Riffles
January Long 2022 - II, Division 2 (Unrated)
TCS Examination, Chef and Fixed Deposits
CodeChef Starters 24 Division 2 (Rated)
Anti Palindrome, Avoid Contact, Divisors and Reciprocals, Yet Another Constructive Problem
February Long 2022 - I, Division 2 (Unrated)
Digit Multiplication By K, Binary Base Basics, Bitwise Blend, Remove Adjacent, N Queens Puzzle Solved !
February Cook-Off 2022 Division 2
Prefix Permutation
February Long 2022 - II, Division 2 (Unrated)
Avoid Fixed Points, Xor Palindrome
CodeChef Starters 27 Division 2 (Rated)
Distinct Binary Strings, The product mystery
February Lunchtime 2022 Division 2
Four Equidistant Points on a Grid, Parallel Processing
March Long One 2022, Division 2 (Unrated)
Akash and Function, Subarray XOR, Substring of a Substring, Count the Ones, Exact Marks, MEX on Trees
CodeChef Starters 29 Division 2 (Rated)
String protocol, Plusle and Minun on Array, Increase 2 consecutive characters, Decomposition Reaction
March Long Two 2022, Division 2 (Unrated)
Minimum Longest Substring, Missing Numbers, Same Parity Swaps in Binary Strings, Kostomuksha and AESC MSU
March Cook-Off 2022 Division 2
Fixed Weight, Janmansh at Fruit Market, Alternating Divisibility
CodeChef Starters 31 Division 2 (Rated)
Alternating String, Sign Moves, The Unchanging OR
April Cook-Off 2022 Division 2
Sticks and Rectangles
CodeChef Starters 33 Division 2 (Rated)
Distinct Dilemma, Non Adjacent Flips, Make Them Equal
Starters 35 Division 2 (Rated)
Jump to Sibling, Dark Light, Chef Find XOR Beautiful, Concurrent Lines, Admins and Shopping
April Long Two 2022 Division 2 (Unrated)
Geometric Mean Inequality, Akash and Equal Mean, Pseudo Sorted Array
May Long One 2022 Division 2 (Unrated)
Mystical Numbers, Pushpa , The Magical Stone, Alternating Diameter, Four Arrays, The Attack of Queen
May Long Two 2022 Division 2 (Unrated)
Subsequence-Numbers Divisible by 7, Xor Palindrome, Subarrays with length, Make them Zero
Starters 40 Division 2 (Unrated)
Infinity Staircase, Good Pairs
June Long One 2022 Division 2 (Unrated)
Reduce to zero, Divisible by i , Possible GCD, Alternate Additions, Equal Strings
June Long Two 2022 Division 2 (Unrated)
Count the ACs, AP Grid, Reversal Sorting, Strong Elements
July Long One 2022 Division 2 (Unrated)
Journey of the Knight, Game of Piles Version 1, Slow Solution
July Long Two 2022 Division 2 (Unrated)
Maximize Difference, Concat Sort, To Divide or Not To Divide, Sum of Product 1, Sum of Product 2
August Long 2022 Division 2 (Unrated)
Angled Flip, XOR with smallest element, Hello Equation, Two Trains
Starters 54 Division 2 (Unrated)
Equal Distinct
September Long 2022 Division 2 (Unrated)
Speed Limit Test, Bob at the Bank, Chef and Wire Frames, Distinct Numbers, Pokemon Battles, Interesting Subarray, Good Pairs
October Long 2022 Division 2 (Unrated)
Chef And Array Construction, Twos and Zeros, Binary Substituition, Single Operation Part 1, Single Operation Part 2
November Long 2022 Division 2 (Unrated)
MaxEdges, Minimize swaps, Split and Maximize, Spliting Balls, Alice and the Array
December Long 2022 Division 2 (Unrated)
Divisible by A_i, Gcd of Subarrays, Maximise XOR
January Long 2023 Division 2 (Unrated)
Asymmetric Swaps, Symmetric Swaps, Minimize the Maximum, Array Halves
Starters 76 Division 2 (Rated)
Make Array Odd, Zero String, Construct Array, Not Divisible
February Cook-Off 2023 Division 2 (Rated)
Permutation and Modulus
Starters 86 Division 2 (Rated)
String Game , Maximise Score
Starters 88 Division 2 (Rated)
Maximum And Or, Chef and Asteroids, Unstable Subarray
Starters 94 Division 2 (Rated)
CodeChef Streak, The Vowel Matrix
Starters 108 Division 2 (Rated)
Clan Expansion
September Short 2023 Division 2 (Unrated)
GCD Discount, Ultimate Fencing, Lucky Seven, Slow Start, Mixing Extraordinaire
Starters 111 Division 2 (Rated)
Prefixing, Beautiful Strings, Reach Codetown
Starters 112 Division 2 (Rated)
Cursed Indices, 3 Logicians Walk into a Bar, Max Nutrition
Starters 114 Division 2 (Rated)
Rock-Paper-Scissors, Christmas Candy
Starters 116 Division 2 (Rated)
ORST , Access Control
Starters 131 Division 2 (Rated)
Dice Deception
Starters 137 Division 3 (Rated)
Spell Splice, Large Differences
Starters 139 Division 3 (Rated)
Sum of N, Maximum Distance Permutations, Distribute Cookies
Starters 140 Division 2 (Rated)
Make Permutation, Split Permutation, Trick Or Treat, Break The String
Starters 146 Division 3 (Rated till 5 stars)
Knockout tournament, No Winner
Starters 157 (Rated)
Small, Smaller, Smallest, Not-too-far Replacement, Non-matching Name, Normal is Good (Easy)
Starters 158 (Rated)
XOR Smaller, Multiply 2 to Minimize, Even vs Odd Divisors
Starters 161 (Rated)
Selling Donuts, One To Three, Two Cards