Md. Najmuzzaman
- Najmuzzaman
Bangladesh- Professional
- No Active Plan. View Details
Activity Heat Map
Learning Paths (6)
JavaScript Problem solving
Learn HTML / CSS
Learn JavaScript
Learn C Programming
Learn Python Programming
C++ Problem Solving
Practice Paths (8)
Projects using HTML / CSS
2000 to 2500 difficulty problems
Level up from 1* to 2*
Jump from 2* to 3*
500 to 1000 difficulty problems
Dynamic programming
Practice C++
Practice Python
Contests (133)
July 2010
Maximal crosses
August Cook Off
Cleaning Up
February Cook - Off Challenge
Three Way Communications
April Long Contest
Number Game Revisited
April Cook-Off Challenge
A Prime Conjecture, Internet Media Types
May Cook-off 2011
Popular Rice Recipe
June Cook-off
Correctness of Knight Move
December Cook-Off
Ciel and A-B Problem
February 2012 Challenge
Lucky Long, Word Couting, Count of Maximum
February 2012 Cook-off
Daily Train
March 2012 Challenge
Home Delivery, Spoon in Matrix
April Challenge 2012
Fit to Play, Double Strings
April Cook-Off 2012
Top Batsmen
May Challenge 2012
Killing Gs, Jewels and Stones, Lucky lucky number, Remember the recipe
May Cook-Off 2012
Little Elephant and Strings
June Challenge 2012
Little Elephant and Candies, Doom Bakes Cakes, Arranging Cup-cakes
June Cook-Off 2012
Closing the Tweets
July Challenge 2012
My Fair Coins, Gift Rift, Restaurant Rating
August Challenge 2012
Little Elephant and Bombs, Delivery Boy
July Cook-Off 2012
Ciel and Receipt
September Challenge 2012
Kisses & Hugs, Racing Horses
October Challenge 2012
Fierce Battles, Event Organizer, Maximum Sub-rectangle in Matrix, The New Scheme
October Cook-Off 2012
Buying Sweets
November Challenge 2012
Coin Flip, Sridhar Likes Travelling
November Cook-Off 2012
Little Elephant and Permutations, Little Elephant and Divisors
December Challenge 2012
Granama Recipes, Book Exercises, Magic Rankings, Pizza Delivery
December Cook-Off 2012
Packaging Cupcakes, Reversing directions
January Challenge 2013
The Minimum Number Of Moves, End Of The World, Chef of the Year, Three Different Numbers
February 2013 Challenge
Little Elephant and Cards, Buy1-Get1, Climbing Stairs, Efficient Painting
February Cook-Off 2013
Row and Column Operations
March Challenge 2013
Random decreasing function, Tourist Translations, Approximately, Fire Escape Routes, Minesweeper
March Cook-off 2013
The Ball And Cups, Palindrome
April Challenge 2013
Barcelona Gameplay Tactics, Maximum Weight Difference, Levy Conjecture
April Cook-Off 2013
Andrew and the Meatballs
May Challenge 2013
Matchsticks, Witua and Math, Password Cracking Challenge, Name Reduction, Your Name is Mine
June Challenge 2013
Dessert Wizard, Predictopus, To challenge or not, Lapindromes
July Challenge 2013
Chef and Walking on the rectangle , Count K-Primes, Circle of death
July Cook-off 2013
Chopsticks
August Challenge 2013
Little Elephant and Lemonade, Hello Hello, Chef and Segments, Splitting Candies
September Challenge 2013
Cool Guys, Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2
October Challenge 2013
Helping Lira, Maxim and Dividers
November Challenge 2013
Superpowers of 2, Uncle Johny, Square Digit Squares, Missing some chairs
December Challenge 2013
Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries
December Cook-off 2013
Chef and Girlfriend
December Lunchtime 2013
Mike and Task Packages, Mike and Matrices
January Challenge 2014
Magic Trick, Sereja and Graph, Bon Appetit, Please like me, Chef and Feedback
January Cook-off 2014
Chef and the Cake I
February Cook-Off 2014
Chef and Remissness, Chef and Kingship
March Cook-Off 2014
Dividing Stamps
May Cook-Off 2014
Divide the Cake, Ups and Downs
July Cook-Off 2014
Copy-Paste, Sum Queries
February Challenge 2014
Draughts, Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Colored Array, Make It Zero 2
March Challenge 2014
Sereja and Sorting 2, Team Split, Binary Tournament, Walk, Maximum number, GCD condition, Little Chef and Numbers, Mike and Stamps
April Challenge 2014
Sereja and Permutation, Counting Matrices, Farmer Feb, Cards, bags and coins, Chef and Digits, Divide the Tangerine, Shortest Path in Binary Trees
May Challenge 2014
Little Elephant and Balloons, Compilers and Parsers, Chef-jumping, Chef and Strange Matrix, Stone
June Challenge 2014
Maxim and Progressions, Chef and Functions, Chef and Digit Jumps, DARTS501, Chef and Subarray, Guessing Game, Forgot Password
July Challenge 2014
Little Elephant and Painting, Garden Game, Chef and Frogs, Chef and Rectangle Genome, Count Substrings, Reach The Point, Dish Owner
August Challenge 2014
Mountain Holidays 2, Little Elephant and T-Shirts, Chef and Reversing, The Leaking Robot, Cleaning Tables, Chef and Gift
September Challenge 2014
Factorisation, Chef and Rainbow Array - 2, Chef and Left-Right, Chef and sequence, Fun with Rotation, Flooring
October Challenge 2014
Remy paints the fence, Chef and Ground, Chef and Painting, Chef and Square, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus
November Challenge 2014
Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome
December Challenge 2014
Alok-nath and His Sanskars, XOR with Subset, Chef and Apple Trees
February Lunchtime 2014
Sereja and ASum
January Challenge 2015
Queries on the String, Sereja and Number Division 2, Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Chef and Equality
May Challenge 2015
Chef and Prime Divisors, Set Difference , Chef and new recipe
June Challenge 2015
Steady tables, Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire, Rupsa and Equilateral Triangle
November Challenge 2015
Eugene and function, Simple Sum, Chef and cakes
December Challenge 2015
Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence
September Mega Cook-Off 2015
Forgotten Language, Super Numbers, Stacks
January Long Challenge 2016
Rupsa and the Game, Churu and Balls
September Challenge 2016
Chef and digits of a number
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
November Challenge 2016
Count Permutations, Chef and squares, Task for Alexey
May Challenge 2017
Chef and Sub Array , Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences
May Challenge 2018 Division 2
S-T Mincut, Mighty Friend, Change the Signs, Minimum Deletions, Xor Again, Fake Binary Search, Dibs on Fibs
September Challenge 2018 Division 1
Table Game, Bad Shuffle
May Challenge 2020 Division 1
Triple Sort
July Challenge 2020 Division 1
Chefina and Swaps, Missing a Point, Doctor Chef
August Challenge 2020 Division 1
Insanely Hard School Exams, Smallest KMP, Chef and Wedding Arrangements
September Challenge 2020 Division 1
Chefina and Swap, Find XOR, Ada Matrix
Starters 109 Division 2 (Rated)
Minimum XOR, Best of N Sets
Starters 111 Division 2 (Rated)
Reach Codetown
Starters 113 Division 2 (Rated)
Maximum Score
Starters 114 Division 2 (Rated)
Rock-Paper-Scissors, Christmas Candy
Starters 115 Division 2 (Rated)
Greedy LIS Algorithm, A PLUS B Remastered, Decorating Christmas Tree
Starters 116 Division 2 (Rated)
ORST , Access Control
Starters 121 Division 3 (Rated)
Caesar Cipher Lite
Starters 123 Division 3 (Rated)
Room Allocation, Maximise Adjacent Sum, Minimum And Maximum I, Minimum And Maximum II
Starters 125 Division 3 (Rated)
50-50 Rule, Fake Certificate
Starters 140 Division 3 (Rated)
Make Permutation, Trick Or Treat, Yoga Class
Starters 143 Division 3 (Rated)
Maximum Coins
Starters 144 Division 3 (Rated)
Budget Allotment, Savings Account
Starters 145 Division 3 (Rated)
Gun Master, Make My Array Equal
Starters 146 Division 3 (Rated till 5 stars)
Permutation Construction, Knockout tournament, No Winner
Starters 148 Division 3 (Rated)
Let Me Eat Cake!, FightBots
Starters 149 (Rated)
Magical World, Easy Subarray Sum, Maximise Sum
Starters 151 (rated)
Convert string, International Gym Day
Starters 152 (Rated)
Maximize Hamming Distance, Winning World Finals, Range Minimize
Starters 153 (Rated)
Make Arithmetic Progression, Butterfly, Another Game, Colorful Tree (Easy Version)
Starters 154 (Rated)
GCD and XOR, Add 1 or 2 Game, Calorie Limit
Starters 155 (Rated)
Chef and Parole, GCD to 1 (Easy), GCD to 1 (Hard), Rectangled
Starters 156 (Rated)
Partition Score, Long Queue, Even Numbers Hate
Starters 158 (Rated)
Largest Subsequence, XOR Smaller, Buying Game, Multiply 2 to Minimize, Even vs Odd Divisors
Starters 159 (Rated)
Super Hero, Random Nim, Elections
Starters 160 (Rated)
Buying Order (Easy), Equate S and T
Starters 161 (Rated)
Temporary Temperature, Red-Blue Sort, One To Three, Two Cards
Starters 165 (Rated)
Reverse and Alternate, Stable Array, Bulk Discount
Starters 166 (Rated)
Distinct Power, Divisors Array (Easy Version), Costly Permutations, Chefland Library
Starters 167 (Rated)
Temperature Balance, Lottery Tickets, Delete Not Equal, Grid Construction (Even), Grid Construction (Odd)
Starters 168 (Rated)
No Two Alike, Binary Removals, Make Odd
Starters 169 (Rated)
Constant Subsequence, Hamming equivalent, Make K Most Frequent
Starters 170 (Rated)
Crazy Jumping Frogs, qUiRkY qUesTs (Easy), Monster Monster
Starters 171 (Rated)
Swish Game, Advitiya Security Vault, Strange Nim Game, White Wall, Volcanic Eruption