ujjwal sachdeva

• Username: 3★codexo
• Country:  India
• Student/Professional:Student
• Institution:Birla Institute of Technology Mesra Ranchi, Jharkhand, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 28

Current Ratings Graph Old Ratings Graph

1722 (-24)RatingProvisional
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March Lunchtime 2015(2015-03-29 14:00:00)

Global Rank:   382

Cheated in:   

Ratings System Update

(2015-03-29 14:00:00)

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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1722 (+76)RatingProvisional
Rating i Provisional Rating, click to know more

March Lunchtime 2015(2022-12-20 00:00:00)

Global Rank:   382

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 (28)

March Challenge 2013

Approximately, Tourist Translations

April Challenge 2013

Maximum Weight Difference, Levy Conjecture, Barcelona Gameplay Tactics

May Challenge 2013

Your Name is Mine

May Cook-off 2013

Subtraction Game 1

July Challenge 2013

The Probability Of Winning, Chef and Walking on the rectangle , Count K-Primes, Circle of death

July Cook-off 2013

Chopsticks, A Plus B Again!

August Challenge 2013

Little Elephant and Lemonade, Hello Hello, Splitting Candies

September Challenge 2013

CAO Stage-1, CAO Stage-2, Chef and Integers , Cool Guys

November Challenge 2013

Superpowers of 2, Yet Another Cute Girl, Uncle Johny, Missing some chairs

December Challenge 2013

Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries

January Challenge 2014

Magic Trick, Bon Appetit, Please like me, Chef and Feedback

January Cook-off 2014

Chef and the Cake I

October Cook-Off 2014

Walk on the Axis, The Army

February Challenge 2014

Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays

April Challenge 2014

Farmer Feb, Chef and Digits, Shortest Path in Binary Trees

June Challenge 2014

Chef and Subarray, Guessing Game

July Challenge 2014

Chef and Frogs, Count Substrings, Reach The Point

August Challenge 2014

Chef and Reversing, Chef and Gift

October Challenge 2014

Magical Girl and Colored Liquid Potions, Chef and Ground

November Challenge 2014

Chef and Segment Game, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome

December Challenge 2014

Chef and Apple Trees, XOR with Subset, Chef and Bracket-Pairs, Alok-nath and His Sanskars

September Lunchtime 2014

Chef and easy problem

January Challenge 2015

Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries

February Challenge 2015

Chef and Chain, Let us play with rank list, Chef and Equality

Total Problems Solved: 88