Umang Kumar

• Username: 4★thelastdevil_4
• Country:  India
• Student/Professional:Student
• Institution:National Institute of Technology, Delhi India
• 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: 18

Current Ratings Graph Old Ratings Graph

1974 (+16)RatingProvisional
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Starters 53 Division 2 (Rated)(2022-08-24 23:00:02)

Global Rank:   235

Cheated in:   

Ratings System Update

(2022-08-24 23:00:02)

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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1974 (-20)RatingProvisional
Rating i Provisional Rating, click to know more

Starters 53 Division 2 (Rated)(2022-12-20 00:00:00)

Global Rank:   235

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 (18)

Starters 35 Division 4 (Rated)

Water Requirement, Dark Light, Jenga Night, Police and Thief

Starters 36 Division 4 (Rated)

Buying Sweets, Reduce to 1, Who is taller!, Presents for Cheffina, Chef and Chapters, Chef and Bird farm

April Long Two 2022 Division 4 (Rated)

Geometric Mean Inequality, Sasta Shark Tank, Six Friends, Best Coupon, Pseudo Sorted Array

Starters 37 Division 4 (Rated)

Dazzling Even-Odd Challenge, Maximum OR Minimum, Infernos, Laptop Recommendation , Beat the Average, Roller Coaster, The Mango Truck

May Long One 2022 Division 3 (Rated)

Mystical Numbers, Pushpa , Sugarcane Juice Business, The Attack of Queen

May Lunchtime 2022 Division 2 (Rated)

Bucket and Water Flow , Equal After And, Maximum Pairwise Modular Sum

Starters 39 Division 2 (Rated)

Compress the Video, Crazy Substrings, Minimize Blocked Roads, Closest Vowels, Even Subarray XOR

July Cook-Off 2022 Division 2 (Rated)

Permutation And Median, K-MEX, Xor Permutation, Segmentation Fault

Starters 41 Division 2 (Rated)

Equal Integers, Path Parity, Is this priority or parity!, Remove and Add

June Cook-Off 2022 Division 2 (Rated)

Simple XOR, Break the Stick, Split AND Sum

June Long One 2022 Division 3 (Rated)

Equal Strings, Alternate Additions, Possible GCD, Subscriptions, Reduce to zero, Divisible by i , Full Path Eraser, Expected move

Starters 44 Division 2 (Rated)

Atleast and Atmost, Triple Xor, Dense Bracket Sequence

Starters 45 Division 2 (Rated)

Even Equal Odd, Xor and Multiply, Retrieve the Array, Adjacent Sum Parity

July Long One 2022 Division 2 (Unrated)

Game of Piles Version 1

Starters 46 Division 2 (Rated)

Vowel Anxiety, Sort the String, Array sorting, Prime Xor

Starters 47 Division 2 (Rated)

Copy and Push Back, Similar Heights, End Sorted

July Lunchtime 2022 Division 1 (Rated)

Interior Design, Consecutive XOR, Maximum Median Matching, Largest Family

Starters 48 Division 1 (Unrated)

Positive array, Accurate XOR

July Long Two 2022 Division 1 (Unrated)

Maximize Difference, Concat Sort, Sum of Product 2, Similar Subsequence

Starters 50 Division 1 (Unrated)

Air Blimp, Sum Product Segments, Average Permutation

Starters 52 Division 1 (Unrated)

Minimum Sum, K-Flip, Nil Xor

August Lunchtime 2022 Division 1 (Rated)

Tree Coloring

Starters 53 Division 2 (Rated)

Black&White Ring Game, Make A and B equal, Queen Blocks

Starters 54 Division 1 (Unrated)

Equal Distinct

Starters 55 Division 1 (Unrated)

Non Zero Xor, Balls and Boxes, Mean and Median, OR Tuples

Starters 56 Division 1 (Unrated)

K-Subarrays

Starters 61 Division 1 (Unrated)

Weird Subarrays, Subarray Removal

Total Problems Solved: 102