Raja Singla

• Username: 2★hacktest4
• Country:  India
• Student/Professional:Professional
• Organisation:Samsung Research Institute Noida(SRI-N)
• 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: 17

Current Ratings Graph Old Ratings Graph

1558 (-38)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2017(2017-06-12 15:00:00)

Global Rank:   7629

Cheated in:   

Ratings System Update

(2017-06-12 15:00:00)

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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1558 (+138)RatingProvisional
Rating i Provisional Rating, click to know more

June Challenge 2017(2022-12-20 00:00:00)

Global Rank:   7629

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 (17)

November Challenge 2013

Missing some chairs, Uncle Johny

January Challenge 2014

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

July Cook-Off 2014

Copy-Paste, Sum Queries

October Cook-Off 2014

Walk on the Axis

February Challenge 2014

Longest Common Pattern

March Challenge 2014

Team Split, Little Chef and Numbers, Walk

April Challenge 2014

Counting Matrices, Farmer Feb, Shortest Path in Binary Trees

May Challenge 2014

Compilers and Parsers, Chef-jumping, Stone

June Challenge 2014

Chef and Subarray, Forgot Password, Guessing Game

July Challenge 2014

Chef and Frogs, Count Substrings, Reach The Point

August Challenge 2014

Chef and Gift

September Challenge 2014

Fun with Rotation

October Challenge 2014

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

January Challenge 2015

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

February Challenge 2016

Chef-Detective

February Challenge 2017

Chef and Triangles

June Challenge 2017

A Good Set

Total Problems Solved: 67