Ojassvi Kumar

• Username: 5★optimalknight
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Ropar Rupnagar, Punjab, 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: 22

Current Ratings Graph Old Ratings Graph

2008 (+5)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 119 Division 1 (Rated till 6-Stars)(2024-01-31 22:00:00)

Global Rank:   128

Cheated in:   

Ratings System Update

(2024-01-31 22:00:00)

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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2003 (-151)RatingProvisional
Rating i Provisional Rating, click to know more

CodeChef Starters 29 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   18

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 (22)

December Lunchtime 2020 Division 2 (Unrated)

Sed Sequences

January Challenge 2021 Division 3

Fair Elections, Chef and Division 3, Point Of Impact, Encoded String

January Cook-Off 2021 Division 3

Distinct Pair Sums, Password

January Lunchtime 2021 Division 3 (Unrated)

Ashishgup and Interviews, Pair Me, Binary Subsequence, Even Differences, Even Sum

February Challenge 2021 Division 3

Frog Sort, Team Name, Chef and Meetings, Prime Game, Maximise Function, Highest Divisor

February Lunchtime 2021 Division 2

Palpal Strings, Coprime Range

March Challenge 2021 Division 2

Interesting XOR!, Space Arrays

April Cook-Off 2021 Division 2

OR of ANDs, Chocolate Monger

May Lunchtime 2021 Division 2

Charges, Tom And Jerry 1, Total Components

May Challenge 2021 Division 2 (Rated)

Tree House, Xor Equality, Tic Tac Toe, Modular Equation, Golf, Solubility

June Challenge 2021 Division 2 (Unrated)

Summer Heat

July Challenge 2021 Division 2 (Unrated)

XxOoRr, Optimal Denomination, Maximum Production, Relativity

July Cook-Off 2021 Division 2

XOR-ORED, Mod Equality

CodeChef Starters 6 Division 2 (Unrated)

Joker and Batman, Even tuples, Three Dices, Cricket Ranking

CodeChef Starters 7 Division 2 (Unrated)

Ceiling Sum, Maximum Array Xor, Chess Format, Food Chain

August Challenge 2021 Division 2 (Unrated)

Special Triplets, Array Filling, Chef and Bulb Invention, Problem Difficulties, Olympics Ranking

August Lunchtime 2021 Division 2

K-th Maximum, Crossing Blocks, Just a Graph

CodeChef Starters 9 Division 2 (Unrated)

Black cells in a chessboard, Large Square, Bus full of passengers

CodeChef Starters 10 Division 2 (Rated)

Magical Flips, Maximise the Subsequence Sum, Remove One Element

SnackDown 2021 - Online Qualifiers

Lucky Number

CodeChef Starters 11 Division 2 (Rated)

Positive Spewing, The Grid Fill Problem, Obtain the Sum

CodeChef Starters 12 Division 2 (Unrated)

Make it Divisible, Another Shortest Paths Problem, Maximum Points

October Challenge 2021 Division 2 (Unrated)

Longest AND Subarray, Digit Removal, MEX-OR

SnackDown 2021 - Online Round 1A

Dance Moves, Min Max LCM

November Cook-Off 2021 Division 2

Product Pain, Missing Sums, Make it Divisible

December Challenge 2021 Division 2 (Unrated)

Valleys and Hills, List of Lists

SnackDown 2021 - Elimination Parallel (Rated for Div 2)

Yet another subarray problem, Remove Element

CodeChef Starters 21 Division 2 (Rated)

Akash and Grid, ChefWM, And Or Union, Mean equals Median

CodeChef Starters 22 Division 2 (Rated)

An Interesting Sequence, Even Subset Xor, Equal LIS

January Long 2022 - I, Division 2 (Unrated)

Sequence Master, Prime in a binary string, Retrieve back the Array, Chef and Riffles

January Cook-Off 2022 Division 2

Palindromes Not Allowed, Mean Maximization, Subsegment Divisibility , Merged LIS, Prime Graph

CodeChef Starters 23 Division 1 (Unrated)

Non Zero Subarray Xor

February Cook-Off 2022 Division 1

Perfect Permutation, PerMEXuation , Mango Market

February Lunchtime 2022 Division 1

Magnet Sort

CodeChef Starters 29 Division 2 (Rated)

String protocol, Plusle and Minun on Array, Increase 2 consecutive characters, Decomposition Reaction, Max Heat

March Long Two 2022, Division 1 (Unrated)

Same Parity Swaps in Binary Strings

March Cook-Off 2022 Division 1

Alternating Divisibility

CodeChef Starters 32 Division 1 (Unrated)

Maximize the Minimum, Finding Shoes, Flip Sorting

CodeChef Starters 34 Division 1

Binary Mismatch, Binary String Xor

Starters 119 Division 1 (Rated till 6-Stars)

K Odd Sum, Unalike Gcd & Lcm

Total Problems Solved: 225