VAIBHAV KUMAR

• Username: 5★vaibhav_425
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Roorkee Uttarakhand, 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: 17

Current Ratings Graph Old Ratings Graph

2066 (+27)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 116 Divison 1 (Rated till 6-Stars)(2024-01-10 22:15:00)

Global Rank:   66

Cheated in:   

Ratings System Update

(2024-01-10 22:15:00)

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?

1932 (-17)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 61 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   98

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 (17)

August Cook-Off 2021 Division 3

Chef and Closure, Equal Difference, Which Division, Different String

August Lunchtime 2021 Division 3

K-th Maximum, Maximum Length Even Subarray, Programming Languages, Crossing Blocks, Just a Graph

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation, Segmentation Fault

Starters 42 Division 2 (Rated)

Minimum or Maximum, Divisible by 3

Starters 43 Division 2 (Rated)

Permutation AND, Distinct Palindrome, The Optimal Pairs, Array Sorting

Starters 59 Division 2 (Rated)

Maximum Subarray , Suspense String

Starters 60 Division 2 (Rated)

Distinct Numbers, Red Green Grids, Yet Another Palindrome Problem, Tri XOR, Palindrome Flipping

Starters 61 Division 2 (Rated)

Palindrome Partition, Minimise LCS, Weird Subarrays, Red Blue Flowers, Subarray Removal

Starters 82 Division 2 (Rated)

Make A-B Same, MIN To MAX, Difference Matrix

Starters 85 Division 2 (Rated)

Crazy Bishops on Chessboard, Efficient PAN Linking, Inside The Stadium, TripTastic

Starters 90 Division 1 (Rated till 6 Stars)

Crushed Apples and a Balance Scale, Printing Binary Array, Anti Palindrome

Starters 94 Division 2 (Rated)

CodeChef Streak, Possible or Not, The Vowel Matrix

Starters 97 Division 2 (Rated)

Schrodinger Smiley, No Palindrome, Triplets Min

Starters 100 Division 1 (Rated)

Prime Permutation, Stamps 100

Starters 101 Division 1 (Unrated)

Minimize Xor Difference, Warrior Chef

Starters 114 Division 1 (Rated till 6 Stars)

Yet another Matrix problem, Chef and Tag, Rock-Paper-Scissors

Starters 115 Division 1 (Rated)

Greedy LIS Algorithm, Binary Grid Forces, Make All Zero

Starters 116 Divison 1 (Rated till 6-Stars)

Chef Product, ORST , Permutation Sort, Exact Savings

Total Problems Solved: 118