Sai Kiran

• Username: 3★codehacker_999
• Country:  India
• Student/Professional:Professional
• Organisation:Amazon
• 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: 44

Current Ratings Graph Old Ratings Graph

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July Challenge 2020 Division 2(2020-07-13 15:00:02)

Global Rank:   5912

Cheated in:   

Ratings System Update

(2020-07-13 15:00:02)

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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1732 (+64)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2020 Division 2(2022-12-20 00:00:00)

Global Rank:   5912

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 (44)

July Challenge 2015

Chef and Cube

August Challenge 2015

Cooking Machine

September Challenge 2015

Count Steps in Matrix

October Challenge 2015

Count Subarrays

December Challenge 2015

Chef and the stones, Plane Division

July Cook-Off 2015

Cops and the Thief Devu

August Cook-Off 2015

Chef and the Wildcard Matching

December Lunchtime 2015

Distinct Codes

February Challenge 2016

Chef-Detective

March Challenge 2016

Palindromic substrings, maximize the sum

April Challenge 2016

Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring

May Challenge 2016

Chef and math, Chef and Balls, Forest Gathering, Chef and Big Soccer, Laddu

June Challenge 2016

Chef And The Hiring Event, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array

July Challenge 2016

Andrash and Stipendium, Chef and Robots Competition, Chefland and Electricity

August Challenge 2016

Chef and Chocolate

October Challenge 2016

Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs

December Challenge 2016

Train Partner

March Cook-Off 2016

Digital clock, Dual Nim, Alternating subarray prefix

April Cook-Off 2016

Movie Weekend, Odd Divisors, Queries on a Binary Tree

May Cook-Off 2016

Phantasialand

June Cook-Off 2016

Sticks, Right Triangle

October Cook-Off 2016

Watson asks Does Permutation Exist, ChefWatson uses Social Network

March Lunchtime 2016

Simple Statistics

May Lunchtime 2016

Akhil And Colored Balls

June Lunchtime 2016

Collisions

July Lunchtime 2016

Drumpf for President!

October Lunchtime 2016

The Largest Bouquet

January Challenge 2017

Capital Movement, Cats and Dogs, Reservior

February Challenge 2017

Chef and His Apartment Dues

March Challenge 2017

Cooking Schedule, Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix

April Challenge 2017

Dish Of Life, Bear and Row 01, Similar Dishes

June Challenge 2017

A Good Set, Chef and the Feast, Xenny and Coin Rankings

August Long Challenge 2017

Chef and Rainbow Array

September Challenge 2017

Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums

March Cook-Off 2017

Safe Robot

August Lunchtime 2017

Mathison and the Dynamo shuffle, Mathison and pangrams

February Challenge 2018

Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome

April Challenge 2018 Division 2

Weight of Numbers, Average of Pairs, Workers

May Challenge 2018 Division 2

Mighty Friend, Minimum Deletions, Xor Again, Dibs on Fibs

December Challenge 2018 Division 2

Chef and Interactive Contests, Chef and An Ideal Problem

April Challenge 2019 Division 2

Playing with Numbers, Friend or Girlfriend, Maximum Remaining, Subtree Removal, Fencing

July Challenge 2019 Division 2

Parity Again, Minimum and Maximum, Chef and Mean

November Challenge 2019 Division 2

Hard Sequence, Weapon Value

July Challenge 2020 Division 2

Ada King, Chefina and Swaps, Missing a Point, Chef and Card Game, Chef and Strings

June Challenge 2021 Division 2 (Unrated)

Minimum Dual Area, Shortest Route, Bitwise Tuples, Bella ciao, Summer Heat

Total Problems Solved: 204