Mostafa Mahmoud
- 5★mostafa_9a7c2
- Egypt
- Other
- No Active Plan. View Details
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Ratings System Update
(2022-06-15 23:00:02)Ratings System Update
(2022-12-20 00:00:00)Learning Paths (0):
None
Practice Paths (0):
None
Contests (105):
March Challenge 2015:
Count Substrings, Chef and Notebooks, Chef and Problems, Sereja and Random Array, Devu and his Class, Sign Wave, Matrix
April Challenge 2015:
Count Sequences, Chef and Interview, Broken Telephone, Inversion sorting, Chef and Piano Scales
May Challenge 2015:
Devu and his three Hands, Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe, Chef and Cake
June Challenge 2015:
Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Anticommutative implication, Chef and String
July Challenge 2015:
Addition and Multiplication, Sereja and Game 2, Bread, MasterChef, Na2a and lucky stone, Chef and Cube, Rohith and Circles
August Challenge 2015:
Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia
September Challenge 2015:
Chain of Doughnuts, Nikitosh and xor, Count Steps in Matrix, Bank robbery, Lighthouses, Cracking the Code
October Challenge 2015:
Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Cyclic shifts in permutation, Rupsa and Equilateral Triangle
November Challenge 2015:
Ingredients, Receipt Recovery, Chef and collection of stamps, Eugene and function, Simple Sum, Chef and cakes
December Challenge 2015:
Chef and cinema, Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters, Chef and Girls
January Long Challenge 2016:
Sereja and Salesman, Chef and Inflation, Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume
February Challenge 2016:
Sereja and Two Lines, Chef and Strange Operations, Devu and a light discussion, Rectangles of Love, Chef-Detective, Matrix Maximum Sum
March Challenge 2016:
Sereja and Two Strings 2, Palindromic substrings, maximize the sum, Chef And Special Dishes
April Challenge 2016:
Amazing Experiment, Help Watson Escape, Fibonacci Queries, Chef and Ballons, Devu and good strings, Chef And Magical Path, Chef And Coloring
May Challenge 2016:
Sereja and GCD 2, Chef and math, Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu
June Challenge 2016:
Chef And The Hiring Event, Chef and Rectangle Array, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Chef and cities, Devu and an Array
July Challenge 2016:
Andrash and Stipendium, Chef and Segments, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity
August Challenge 2016:
Chef and His Garden, Chef and Circle Run, Chef and Chocolate, Chef and Round Run, Funny gnomes
September Challenge 2016:
Chef and Friends, Dividing Machine, Chef and Matrix Division, Chef and digits of a number, Faded Palindromes, JosephLand, Chef and calculation
October Challenge 2016:
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs, Chef and Two String
November Challenge 2016:
Count Permutations, Friends Meeting, Urban Development, Gift and Chef, Chef and squares, Task for Alexey
February Challenge 2017:
Chef and Yoda, Eugene and big number, Interval Game, Chef and Triangles, Chef and his Best Friend, Chef and His Apartment Dues, Most Frequent Element, Gerrymander
March Challenge 2017:
Cooking Schedule, Completing favorite game, Xenny and Alternating Tasks, Pishty and birthday, Bear and Extra Number, Bandwidth of a matrix
April Challenge 2017:
Chef and Divisor Tree, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes
May Challenge 2017:
Chef and Sub Array , Gotham PD, Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences
June Challenge 2017:
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
July Challenge 2017:
Chef and Sign Sequences, Pishty and tree, Tree Expectancy, Whats in the Name, Calculator , IPC Trainers
August Long Challenge 2017:
Chef and Rainbow Array, Chef And Fibonacci Array, Chef and Mover, Hill Jumping, Palindromic Game, Greedy Candidates, Strings and Graphs
September Challenge 2017:
Sereja and Commands, Chef and Pick Digit, Minimum Good Permutation, Weasel does Xor on Tree, Fill The Matrix, Little Chef and Sums
October Challenge 2017:
Chef and Magic Arrays, Chef and a great voluntary Program, Chef and Cycled Cycles, Max Mex, Counter Test For CHEFSUM, A Balanced Contest
November Challenge 2017:
Chef Hates Palindromes, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
December Challenge 2017:
Chef and Universe, Total Diamonds, Chef And his Cake, Chef, Leonardo And Queries, Chef And Easy Xor Queries, Penalty Shoot-out, Red and blue points, Chef and Hamming Distance of arrays
July Cook-Off 2017:
Chang and Bitwise OR, Chang and the Perfect Function, Chang and Perfect Quadruples
February Challenge 2018:
Broken Clock, Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
February Challenge 2019 Division 1:
Manhattan Rectangle, Guess It Right, Chef and Secret Ingredients, Xor Decomposition, Yet Another Tree Problem, (Challenge) Chef with Orchestra in the Kitchen, Art of Balance, Maximize the Tax
March Challenge 2020 Division 1:
Chef and DAG, Break, Winning Ways 2, Lasers Everywhere, Lasers Everywhere Alternative
April Challenge 2020 Division 1:
Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Factor Tree
May Cook-Off 2020 Division 1:
Chef, Chefina and Their Friendship, Chefina on a Trip, Roads in Chefland
June Challenge 2020 Division 1:
The Tom and Jerry Game!, Operations on a Tuple, The Delicious Cake, Convenient Airports
May Challenge 2021 Division 2 (Rated):
Valid Paths, Tree House, An Interesting Sequence, King Killing, Xor Equality, Tic Tac Toe, Modular Equation
SnackDown 2021 - Online Qualifiers:
Prefix as a Substring 2, Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference
SnackDown 2021 - Online Round 1A:
Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
Code Drive Division 2 (Rated):
Sum this up, Again XOR problem, Maximum Factors Problem, Count Number of Peaks
CodeChef Starters 33 Division 2 (Rated):
Stable Mex, Distinct Dilemma, Broken Life, Non Adjacent Flips, Make Them Equal
CodeChef Starters 34 Division 2 (Rated):
Binary Mismatch, Average Array, Binary String Xor, Good Permutation
Starters 43 Division 2 (Rated):
Array Sorting, Make them Equal, The Optimal Pairs, Permutation AND, Distinct Palindrome
Practice Problems (47):
Practice:
Exponential Game, Reign 2, Tree Game, Lucky Four, Heavy-light Decompositions, The Warehouse, Filling the maze, Devu, his friends and birthday gifts, Saving a gift of love, Chef Anup, Equality, Version Control System, Chef And Hungry Birds, Path containing K Nodes, Longest non regular parentheses sub-sequence, Adding Special Sum, Make Palindrome, Word Stem, Almost Sorted Permutation, Chef and Destruction, Sereja and Tree 2, Chef and Queries, Arrays Sum, Asya & Coloring, Chef Land, Lock-Free Stack, Chairs, Rainbow Graph, Safe Robot, Nasty Queries, Hasan and boring classes, Chang and Perfect Quadruples, Game on Stick, Smart Strategy, Maximize It, Roll the Bar, Families of Chefland, Tree difference, Tree Distances, Median Rearrangement, Chef Up, Partition It, Find the Special Node, Count of Array, RGB Construction, Max BIT Sum, Admins and Shopping