Mandeep Singh

• Username: 4★code8hack
• Country:  India
• Student/Professional:Student
• Institution:Dr. BR Ambedkar National Institute of Technology Jalandhar, Punjab, India
• 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: 29

Current Ratings Graph Old Ratings Graph

1961 (-51)RatingProvisional
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January Lunchtime 2019 Division 1(2019-01-26 22:30:00)

Global Rank:   237

Cheated in:   

Ratings System Update

(2019-01-26 22:30:00)

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

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1961 (+106)RatingProvisional
Rating i Provisional Rating, click to know more

January Lunchtime 2019 Division 1(2022-12-20 00:00:00)

Global Rank:   237

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 (29)

September Challenge 2014

Fun with Rotation, Chef and Left-Right

October Challenge 2014

Remy paints the fence, Chef and Ground, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

Chef and Segment Game, Distinct Characters Subsequence

December Challenge 2014

Chef and Apple Trees

January Challenge 2015

One Dimensional Kingdoms, Gcd Queries, Sereja and Votes, Chef and Stones, Chef and A Large Permutation, Sereja and Number Division 2

January Cook-Off 2015

Suraj goes shopping

January Lunchtime 2015

Piece of cake

February Challenge 2015

Chef and Chain, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Jigsaw Puzzle Solving, Chef and Equality

March Challenge 2015

Count Substrings, Sign Wave, Devu and his Class, Chef and Notebooks, Sereja and Random Array

April Challenge 2015

Count Sequences, Chef and Interview, Broken Telephone, Division of Lands, Chef and Piano Scales

May Challenge 2015

Chef and new recipe, Set Difference , Chef and Prime Divisors, Devu and binary String

June Challenge 2015

Steady tables, Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Anticommutative implication, Chef and String

July Challenge 2015

Rohith and Circles, Chef and Cube, Na2a and lucky stone, MasterChef, Sereja and Game 2, Bread, Addition and Multiplication, Maximum Difference Walk

August Challenge 2015

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

September Challenge 2015

Terrible vectors, Cracking the Code, Lighthouses, Bank robbery, Count Steps in Matrix, Nikitosh and xor, Chain of Doughnuts, Filling the maze

October Challenge 2015

Time measure, Count Subarrays, Who dares to be a millionaire, Spheres, Cyclic shifts in permutation, Rupsa and Equilateral Triangle

February Cook-Off 2015

Fit Squares in Triangle

April Cook-Off 2015

Version Control System, Equality

June Cook-Off 2015

Strange operations

August Cook-Off 2015

Chef and the XORed Number , Chef and the Wildcard Matching

September Mega Cook-Off 2015

Forgotten Language, Stacks

October Cook-Off 2015

Word Stem, Almost Sorted Permutation

February Lunchtime 2015

Lucky Four

May Lunchtime 2015

Devu and Grapes

March Challenge 2016

Palindromic substrings, maximize the sum, Chef And Special Dishes

September Challenge 2017

Chef and Pick Digit, Minimum Good Permutation

January Challenge 2019 Division 2

Yet Another Problem About Sequences, Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, (Challenge) Chef and Matching Game, A Pizza Slice

January Cook-Off 2019 Division 2

Ada School, Ada King

January Lunchtime 2019 Division 1

Rooks

Total Problems Solved: 121