Ajay Singh

• Username: 1★code_breaker21
• Country:  India
• Student/Professional:Student
• Institution:Harcourt Butler Technical University, Kanpur
• 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: 25

Current Ratings Graph Old Ratings Graph

1394 (-61)RatingProvisional
Rating i Provisional Rating, click to know more

June Lunchtime 2021 Division 3(2021-06-26 22:45:04)

Global Rank:   9577

Cheated in:   

Ratings System Update

(2021-06-26 22:45:04)

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?

1394 (+95)RatingProvisional
Rating i Provisional Rating, click to know more

June Lunchtime 2021 Division 3(2022-12-20 00:00:00)

Global Rank:   9577

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)

None

Practice Paths (0)

None

Contests (25)

March Challenge 2020 Division 2

Ada Bishop 2, XOR Engine, Pintu and Fruits

April Challenge 2020 Division 2

Strange Number, Squared Subsequences, Ready Bitwise, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue

February Lunchtime 2020 Division 2

At the Gates

September Challenge 2020 Division 1

Chefina and Swap, Ada Matrix

October Challenge 2020 Division 1

Positive AND

November Challenge 2020 Division 2

Ada and Dishes

December Lunchtime 2020 Division 2 (Unrated)

Sed Sequences

October Cook-Off 2020 Division 2

Split the Str Ing, Decreasing Srrnmieeda

October Lunchtime 2020 Division 2

AND Plus OR

September Lunchtime 2020 Division 1

Root the Tree

UWCOI 2021 (Rated for all)

Hidden Numbers

January Challenge 2021 Division 3

Fair Elections, Chef and Division 3, Encoded String

January Cook-Off 2021 Division 3

Password, Distinct Pair Sums, Maximise Islands

January Lunchtime 2021 Division 3 (Unrated)

Ashishgup and Interviews, Pair Me, Even Differences, Even Sum

February Challenge 2021 Division 3

Maximise Function, Highest Divisor

CodeChef Div 3 Rated Contest 2021 Division 3

Chef and Patients, Body Mass Index, Total Score

February CodeChef Starters 2021 Division 3 (Rated)

College Life 2, Chef and Coupon

April Cook-Off 2021 Division 3

Bodybuilder, Chocolate Monger, Passing Marks

April Lunchtime 2021 Division 3

Chef in Heaven , Bench Press, Equinox Strings, Array Rotation, Coldplay

SPYBITS IIT BHU Division 3 (Rated)

B - Valentine Couples, A - Save Water Save Life

May CodeChef Starters 2021 Division 3 (Rated)

Plagiarism, Lazy Chef

June Challenge 2021 Division 3 (Rated)

Bella ciao, Summer Heat

Total Problems Solved: 229