Sandeep Kumar

• Username: 3★sand2707
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology Patna Bihar, 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: 26

Current Ratings Graph Old Ratings Graph

1761 (+17)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 75 Division 2 (Rated)(2023-01-26 23:00:02)

Global Rank:   622

Cheated in:   

Ratings System Update

(2023-01-26 23:00:02)

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?

1744 (-296)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 28 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   254

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)

None

Practice Paths (0)

None

Contests (26)

July Challenge 2020 Division 2

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

August Challenge 2020 Division 2

Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements

September Challenge 2020 Division 2

Chefina and Swap, Chef and Trump Cards, Find XOR, Coronavirus Spread 2

June Cook-Off 2020 Division 2

Cache Hits

June Lunchtime 2020 Division 2

Chef and Demonetisation, Increasing Decreasing

January Cook-Off 2021 Division 3

Prime Tuples, Maximise Islands

March Cook-Off 2021 Division 3

Guess the Number

International Coding Marathon 2021 Division 3 (Rated)

Lucky Boundaries

May Lunchtime 2021 Division 3

Birthday Gifts, Charges, Hoop Jump, Tom And Jerry 1

May Challenge 2021 Division 3 (Rated)

Xor Equality, Golf

July Challenge 2021 Division 3 (Rated)

XxOoRr

July Lunchtime 2021 Division 3

Beautiful Pairs

CodeChef Starters 21 Division 3 (Rated)

Covid and Theatre Tickets, And Or Union, ChefWM, Devendra and Water Sports, Akash and Grid

Exun 2021-22 Division 3 (Rated)

Vishesh and his Popcorn Combo, Sarthak and his Magic Grid, Vedant and his Hidden Array, Aujasvit and the Circle Game

January Lunchtime 2022 Division 3

Subarray permutations, Prefix Zeros, Chef and Lockout Draws, Permutation XOR Sum

CodeChef Starters 24 Division 2 (Rated)

Anti Palindrome, Avoid Contact, Divisors and Reciprocals, Yet Another Constructive Problem

February Cook-Off 2022 Division 2

PerMEXuation , Prefix Permutation, Perfect Permutation

CodeChef Starters 27 Division 2 (Rated)

String Reverse, Distinct Binary Strings, Non Coprime Neighbours, The product mystery

CodeChef Starters 28 Division 2 (Rated)

Travelling in the Graph, Permutation Xority, Count the Holidays

Starters 56 Division 1 (Unrated)

K-Subarrays

Starters 61 Division 1 (Unrated)

Weird Subarrays, Subarray Removal

Starters 75 Division 2 (Rated)

Equal Hamming Distance, Prefix Ones, Three Powers of Two

Total Problems Solved: 97