Jackrichard Jacky

• Username: 1★collin8401
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology Kharagpur West Bengal, 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: 6

Current Ratings Graph Old Ratings Graph

1232 (+197)RatingProvisional
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Starters 186 (Rated)(2025-05-14 22:30:06)

Global Rank:   18

Cheated in:   

Ratings System Update

(2025-05-14 22:30:06)

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1139? (+0)RatingProvisional
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August Lunchtime 2022 Division 4 (Rated)(2022-12-20 00:00:00)

Global Rank:   4136

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

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Learning Paths (0)

Practice Paths (3)

Practice JavaScript

6%

C++ Interview Questions and Answers

17%

Level up from 1* to 2*

5%

Contests (6)

August Lunchtime 2022 Division 4 (Rated)

Candy Distribution, Equalizing Numbers, Easy Permutation, Height of Rationals, Test Averages

Starters 74 Division 4 (Rated)

Lcm hates Gcd

Starters 76 Division 4 (Rated)

Read Pages, 400M Race

Starters 150 (Rated)

Ratio By 2, Equal Pairs (Easy), Find Multiset State, Equal Pairs (Hard)

Starters 186 (Rated)

Distinct Arrays , Segment Tree Reconstruction, Jump A or B, Approval Ratings, Best Movie, Chess Win, Mod and Make Y

Weekend Dev Challenge 10: ML Projects

Calculate F-Score for Evaluating Binary Classifier

Total Problems Solved: 105