chandan singh

• Username: 2★chandan2495
• Country:  India
• Student/Professional:Student
• Institution:Motilal Nehru National Institute of Technology Allahabad Uttar Pradesh, India
• 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: 62

Current Ratings Graph Old Ratings Graph

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January Challenge 2020 Division 2(2020-01-13 15:00:02)

Global Rank:   12357

Cheated in:   

Ratings System Update

(2020-01-13 15:00:02)

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1547 (+113)RatingProvisional
Rating i Provisional Rating, click to know more

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

Global Rank:   12357

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 (62)

March Challenge 2013

Approximately, Tourist Translations

April Challenge 2013

Levy Conjecture, Maximum Weight Difference

May Challenge 2013

Your Name is Mine, Name Reduction

June Challenge 2013

Predictopus, To challenge or not, Lapindromes

May Cook-off 2013

Subtraction Game 1

July Challenge 2013

Chef and Walking on the rectangle

August Challenge 2013

Splitting Candies, Deleting numbers, Hello Hello, Little Elephant and Lemonade

August Cook-Off 2013

Chef and The Right Triangles

October Challenge 2013

Helping Lira

November Challenge 2013

Uncle Johny, Square Digit Squares, Missing some chairs

December Challenge 2013

Magic Pairs

January Challenge 2014

Bon Appetit, Please like me, Chef and Feedback

January Cook-off 2014

Chef and the Cake I

February Cook-Off 2014

Chef and Remissness

April Cook-Off 2014

Snape and Ladder

July Cook-Off 2014

Copy-Paste, Sum Queries

February Challenge 2014

Make It Zero, Make Him Happy, Longest Common Pattern, Little Elephant and Subarrays, Make It Zero 2

March Challenge 2014

Walk, Little Chef and Numbers, Team Split, Sereja and Sorting 2

April Challenge 2014

Sereja and Permutation, Counting Matrices, Farmer Feb, Chef and Digits, Shortest Path in Binary Trees

May Challenge 2014

Compilers and Parsers, Chef-jumping, Stone

June Challenge 2014

Forgot Password, Chef and Subarray, Guessing Game

July Challenge 2014

Count Substrings, Reach The Point, Chef and Rectangle Genome

August Challenge 2014

Chef and Gift

September Challenge 2014

Chef and Left-Right

October Challenge 2014

Chef and Ground, Magical Girl and Colored Liquid Potions

November Challenge 2014

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

December Challenge 2014

Kali and Devtas, Chef and Apple Trees

April LunchTime 2014

Knight Fork

May Lunchtime 2014

Approximately II

June Lunchtime 2014

The Smallest Pair

January Challenge 2015

Sereja and Number Division 2, Chef and Stones, Gcd Queries

January Cook-Off 2015

Suraj goes shopping

February Challenge 2015

Let us play with rank list, Chef and Equality

March Challenge 2015

Chef and Notebooks

April Challenge 2015

Broken Telephone, Chef and Interview

May Challenge 2015

Chef and Prime Divisors, Chef and new recipe

June Challenge 2015

Chef and Memory Limit

August Challenge 2015

Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick

February Cook-Off 2015

Fit Squares in Triangle

May Cook-Off 2015

Devu and friendship testing

February Lunchtime 2015

Lucky Four

July Lunchtime 2015

Greedy puppy

January Long Challenge 2016

Churu and Balls

February Challenge 2016

Chef-Detective

May Challenge 2016

Chef and Balls, Forest Gathering, Laddu

September Challenge 2016

Chef and digits of a number, Faded Palindromes, Chef and calculation

May Challenge 2017

Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers

Total Problems Solved: 257