Shahed Shahriar

• Username: 6★z0rr0
• Country:  Bangladesh
• Student/Professional:Student
• Institution:University of Dhaka
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2025 (Jul-Dec)2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 24

Current Ratings Graph Old Ratings Graph

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November Lunchtime 2018 Division 1(2018-11-24 22:30:00)

Global Rank:   42

Cheated in:   

Ratings System Update

(2018-11-24 22:30:00)

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2408 (+167)RatingProvisional
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November Lunchtime 2018 Division 1(2022-12-20 00:00:00)

Global Rank:   42

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

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Practice Paths (0)

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Contests (24)

February Challenge 2015

Chef and Chain, Time to Study Graphs with Chef, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Xor Matrix, Chef and Equality

March Challenge 2015

Count Substrings, Chef and Notebooks, Devu and his Class, Sign Wave, Matrix

April Challenge 2015

Inversion sorting

July Challenge 2015

Addition and Multiplication, Bread, MasterChef, Na2a and lucky stone, Chef and Cube

August Challenge 2015

Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia

February Challenge 2016

Sereja and Two Lines, Devu and a light discussion, Rectangles of Love, Chef-Detective, Matrix Maximum Sum

April Challenge 2016

Amazing Experiment, Help Watson Escape, Fibonacci Queries, Chef and Ballons, Devu and good strings, Chef And Magical Path, Chef And Coloring

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

December Challenge 2016

Our Base is Under Attack, Bear and Three Colours

April Challenge 2017

Chef and Digits, (CH) Serejs and Billiards, Bear and Random Grid, Chef and Divisor Tree, Stable market, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes

June Challenge 2017

Chef and Prime Queries, A Good Set, Cloning, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets

August Long Challenge 2017

Chef and Rainbow Array, Chef And Fibonacci Array, Chef and Mover, Hill Jumping, Palindromic Game, Greedy Candidates, Strings and Graphs

December Challenge 2017

Chef and Universe, Total Diamonds, Santa Delivering Problem, Chef And his Cake, Chef And Easy Xor Queries, Penalty Shoot-out, Red and blue points, Chef and Hamming Distance of arrays

November Cook-Off 2017

Hasan and boring classes, Skiing, Online Chess, Random Pair

December Cook-Off 2017

Minimum SubArray, Beautiful Array, Football Match

November Lunchtime 2017

Smart Strategy, L-R queries

January Challenge 2018

(Challenge) Chef and Palindromes, Killing Monsters, A humongous Query, Killjee and k-th letter , K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers

January Cook-Off 2018

Multiple of 3, Make array great again, Survive in ChocoLand

February Challenge 2018

Broken Clock, Chef And Land Labeling, Chef And His Characters, Chef And The Patents, Chef and odd queries, Points Inside A Polygon, Car-pal Tunnel, (Challenge) Biased Committee, Permutation and Palindrome

March Challenge 2018 DIV 1

Pishty and Triangles, Chef and Easy Problem, Chef and Gcd Queries, Mix the Colors, Minions and Voting

April Cook-off 2018 Division 1

Run Direction, Binary Nim

October Mega Cook-Off 2018 Division 1

Binary Nim 2, Pumping Water

April Challenge 2018 Division 1

Chef and Array (Challenge), Vaibhav and Ministers, Chef at the Food Fair, Cutting Plants, Highway Crossing, Chef and Same Old Recurrence, Count Good Prefixes

November Lunchtime 2018 Division 1

Useful Number, Beats and Pieces

Total Problems Solved: 169