Shikhar Nigam

• Username: 3★knock
• Country:  India
• Student/Professional:Other
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 25

Current Ratings Graph Old Ratings Graph

1702 (-55)RatingProvisional
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Starters 159 (Rated)(2024-11-06 22:00:02)

Global Rank:   1633

Cheated in:   

Ratings System Update

(2024-11-06 22:00:02)

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1805 (-75)RatingProvisional
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Starters 61 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   324

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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Contests (25)

May Lunchtime 2020 Division 2

Lost Weekends

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control

July Challenge 2020 Division 2

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

August Challenge 2020 Division 2

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

September Challenge 2020 Division 2

Ada Matrix, Coronavirus Spread 2, A Problem on Sticks, Chefina and Swap

July Cook-Off 2020 Division 2

Even-tual Reduction

July Lunchtime 2020 Division 2

Chef and Steps

August Cook-Off 2020 Division 2

Polygon Relationship

June Lunchtime 2020 Division 2

Chef and Demonetisation

October Challenge 2020 Division 2

Chef and Easy Queries, Covid Run, Replace for X, Positive AND

October Lunchtime 2020 Division 2

AND Plus OR, Chef Likes Good Sequences

January Cook-Off 2022 Division 2

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

CodeChef Starters 23 Division 2 (Unrated)

Average of Three, Non Zero Subarray Xor, Subarray Mex, Maximising Vacations

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros

CodeChef Starters 24 Division 2 (Rated)

Anti Palindrome, Avoid Contact, Yet Another Constructive Problem

February Lunchtime 2022 Division 2

Four Equidistant Points on a Grid, Parallel Processing, Magnet Sort

March Lunchtime 2022 Division 2

Sad Splits, Winter, Adjacency Love

CodeChef Starters 32 Division 2 (Rated)

Flip Sorting, Training Plans, Maximize the Minimum, Finding Shoes

Starters 35 Division 2 (Rated)

Dark Light, Admins and Shopping

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, Xor Permutation, Segmentation Fault

Starters 45 Division 2 (Rated)

Adjacent Sum Parity, Retrieve the Array, Even Equal Odd

Starters 47 Division 2 (Rated)

Copy and Push Back, Similar Heights, End Sorted

Starters 61 Division 2 (Rated)

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

Starters 159 (Rated)

Elections

Total Problems Solved: 73