Mohammed Ehab

Practice: 

Fire Escape Routes, Chef and The Right Triangles, Kamehameha, Sherlock and Inversions, Chef and Reversing, Coprime Triples, Chef and Red Black Tree, Chef and Bitwise OR Operation, Chef And The Hiring Event, Receipt Recovery, Capital Movement, Jump mission, Magical Strings, Chef And Binary Operation, Chef and Coins Game, Cats and Dogs, Devu and an Array, Short in Average, Visiting Friends, Tourists in Mancunia, Pishty and birthday, Chef and Prime Queries, Ancestors in Two Trees, Robots in a DAG, Skiing, Pishty and Triangles, Biased Judgement, Match the Streams, Heap Pirates, Strange Transform, A-B Game, Good Grid, Cheapest Travel Plan, Shifting Spoons, Ashishgup and Interviews, Dreams of Divisibility, Binary Subsequence, Even Differences

September Challenge 2016: 

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

October Challenge 2016: 

Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs

November Challenge 2016: 

Count Permutations, Friends Meeting, Urban Development, Gift and Chef, Chef and squares, Sereja and Ways in the Cube, Task for Alexey

March Challenge 2017: 

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

Past INOI Problems: 

Department Strengths

September Challenge 2017: 

Fill The Matrix, Little Chef and Sums, Weasel does Xor on Tree, Minimum Good Permutation, Chef and Pick Digit, Sereja and Functions (Challenge), Sereja and Commands

January Challenge 2018: 

Killing Monsters, K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers

July Lunchtime 2018 Division 1: 

Prime divisors, GCD Sum, Forced Particles

September Lunchtime 2018 Division 1: 

Opposite Cites, Chef Restaurant , Match the Streams

November Lunchtime 2018 Division 1: 

Useful Number, Maximize It, Beats and Pieces

October Lunchtime 2018 Division 1: 

Weird Question, Niceness of the Arrays, Coloring the Grid

December Lunchtime 2018 Division 1: 

Choosing from Buckets, Drawing Lines, Maximize the NOSS, Find Best Path, Age Calculator

January Lunchtime 2019 Division 1: 

Mouse Meets Cheese, Rooks, Distances, Wanderer

April Lunchtime 2019 Division 1: 

Dream Problem, Firdavs and Planet F, Minimum Sum, Chef Rami and Inventions

June Lunchtime 2019 Division 1: 

Igzi and Burly Array, Ivan Pesic and His World Tour, Gii and His Club, The Grux Permutation , Fuzzy Conversions

July Lunchtime 2019 Division 1 (Unrated): 

Delete a Subarray, Professor on a Trip, Two-lane Road

January Lunchtime 2020 Division 1: 

Minimum and Maximum, Under the Tunnels

March Lunchtime 2020 Division 1 (Unrated): 

Maximize LCM, Strip in a Tree!, Nested Rotation

Problems Authored (10)

Problems Tested (0)

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Editorials Contributed (9)