Sachin Kumar

• Username: 3★sacchin19
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Kharagpur West Bengal, 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: 44

Current Ratings Graph Old Ratings Graph

1675 (-7)RatingProvisional
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September Lunchtime 2015(2015-09-27 14:00:00)

Global Rank:   676

Cheated in:   

Ratings System Update

(2015-09-27 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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1675 (-81)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   676

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)

October Challenge 2012

Fierce Battles, The New Scheme

October Cook-Off 2012

Buying Sweets

November Challenge 2012

Coin Flip

December Challenge 2012

Magic Rankings

January Cook-Off 2013

Minimum Distance

February 2013 Challenge

Buy1-Get1

April Challenge 2013

Maximum Weight Difference, Levy Conjecture

May Challenge 2013

Name Reduction, Your Name is Mine

June Challenge 2013

Dessert Wizard, Predictopus, W String, Lapindromes

Lunch Time June 2013

Number of Factors

July Challenge 2013

Chef and Walking on the rectangle

August Challenge 2013

Little Elephant and Lemonade, Hello Hello, Splitting Candies

September Challenge 2013

Little Elephant and Exams, Cool Guys, Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2

September Cook-Off 2013

Code

October Challenge 2013

Little Elephant and Bamboo, Helping Lira, Maxim and Dividers, Sereja and Transformation

November Challenge 2013

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

December Challenge 2013

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

December Lunchtime 2013

Mike and Matrices

January Challenge 2014

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

January Cook-off 2014

Chef and the Cake I

April Cook-Off 2014

Snape and Ladder

August Cook-Off 2014

Tree Game, Permutation Shuffle

September Cook-Off 2014, ACM-ICPC Warm up

Sherlock and the Grid, Subarray GCD

October Cook-Off 2014

The Army, Walk on the Axis

February Challenge 2014

Longest Common Pattern, Little Elephant and Subarrays

March Challenge 2014

Team Split, Binary Tournament, Walk, Little Chef and Numbers, Mike and Stamps, A Story with Strings

April Challenge 2014

Counting Matrices, Farmer Feb, Chef and Digits, Divide the Tangerine, Shortest Path in Binary Trees

June Challenge 2014

Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password

July Challenge 2014

Garden Game, Chef and Frogs, Count Substrings, Reach The Point, Dish Owner

August Challenge 2014

Chef and Reversing, The Leaking Robot, Cleaning Tables, Chef and Gift

October Challenge 2014

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

December Challenge 2014

XOR with Subset, Chef and Apple Trees

May Lunchtime 2014

Approximately II

September Lunchtime 2014

Chef and easy problem, Chef and easy problem 2

January Challenge 2015

Chef and Stones, Sereja and Votes, Gcd Queries

August Challenge 2015

Aditi and Magic Trick

September Challenge 2015

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

August Cook-Off 2015

Chef and the XORed Number , Chef and the Wildcard Matching

August Lunchtime 2015

Minimum Maximum

September Lunchtime 2015

Sum of palindromic numbers

Total Problems Solved: 126