Abu Rayhan Ahmad
- rayhan50001
Bangladesh- Other
- No Active Plan. View Details
Submissions Heat Map
Learning Paths (0)
Practice Paths (2)
Contests (38)
July Challenge 2017
Chef and Sign Sequences, Whats in the Name
July Cook-Off 2017
Chang and Bitwise OR
December Cook-Off 2017
Beautiful Array, Football Match
July Lunchtime 2017
Find the Maximum Value
August Challenge 2018 Division 2
Coordinate Compression , Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
Code Ensemble (Rated for Division 2)
Priya and AND, Help Martha
CodeChef Starters 6 Division 2 (Unrated)
Joker and Batman, Even tuples, Three Dices, Cricket Ranking
CodeChef Starters 7 Division 2 (Unrated)
Ceiling Sum, Maximum Array Xor, Chess Format, Food Chain
October Challenge 2021 Division 2 (Unrated)
Longest AND Subarray, Digit Removal, MEX-OR
Starters 84 Division 3 (Rated)
Max count of 1, Digit Operation, Elections in Chefland, Max Binary, Chef And Adjacent Sums, Melt Gold
Starters 85 Division 3 (Rated)
Crazy Bishops on Chessboard, Efficient PAN Linking, Inside The Stadium, Can Chef
Starters 87 Division 3 (Rated)
Return the Change, Existence, AB plus C
Starters 83 Division 3 (Rated)
Chef Eren, Construct String
Starters 89 Division 2 (Rated)
Plus 2 or Minus 1, Positive or Negative Subarrays
Starters 90 Division 2 (Rated)
Crushed Apples and a Balance Scale, Printing Binary Array, Anti Palindrome
Starters 91 Division 2 (Rated)
Odd GCD Permutation, Chef Odd, Blobby Volley Scores, Bus Seat Numbering, Parking Charges, Maximum Sum Permutation
Starters 92 Division 2 (Rated)
Distance Coloring, Dotify Playlist
Starters 93 Division 2 (Rated)
Break Free, Problem
Starters 94 Division 2 (Rated)
CodeChef Streak, Possible or Not, The Vowel Matrix
Starters 95 Division 2 (Rated)
Boxes, Donation Drive, Donation Rewards, Transfusion Chain, EVacuate to Moon
Starters 97 Division 2 (Rated)
Schrodinger Smiley, Triplets Min
Starters 98 Division 2 (Rated)
Airport Management, Ball Distribution
Starters 99 Division 2 (Rated)
Card Swipe, Exclusion-Inclusion
Starters 113 Division 2 (Rated)
Minimise Maximum Subarray Sum, Maximum Score , Sum Neq
Starters 114 Division 2 (Rated)
Rock-Paper-Scissors, Christmas Candy, Christmas Greetings
Starters 115 Division 2 (Rated)
Greedy LIS Algorithm, A PLUS B Remastered, Decorating Christmas Tree
Starters 116 Division 2 (Rated)
Chef Product, ORST , Access Control
Starters 118 Division 2 (Rated)
Subset GCD, Join States, Xorry 2, Xorry 1
Starters 119 Division 2 (Rated)
Cookie Day, Another Good String , K Odd Sum
Starters 121 Division 2 (Rated)
Frequal, Split And Maximize, Caesar Cipher Lite, Anti Adjacent Swaps
Starters 122 Division 2 (Rated)
Arya In Grid, Transformation Cost, Man of the Match
Starters 124 Division 2 (Rated)
Binary Parity, Table Strength
Starters 131 Division 2 (Rated)
Dice Deception, Encrypt Value
Starters 132 Division 2 (Rated)
ALIEN-OR, GAME 11
Starters 136 Division 2 ( Rated )
Sum of Modes, My First Geometry Problem
Starters 152 (Rated)
Maximize Hamming Distance, Anti-Palindrome Queries, Range Minimize