prajjwal kumar

• Username: 4★soulmortal07
• Country:  India
• Student/Professional:Student
• Institution:Indian Institute of Technology (Indian School of Mines) Dhanbad
• CodeChef Pro Plan: No Active Plan. View Details

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Last 6 Months 2025 (Jan-Jun)2024 (Jul-Dec)2024 (Jan-Jun)

Rating Graph

No. of Contests Participated: 23

Current Ratings Graph Old Ratings Graph

1986 (+10)RatingProvisional
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December Lunchtime 2021 Division 1(2021-12-25 23:00:00)

Global Rank:   161

Cheated in:   

Ratings System Update

(2021-12-25 23:00:00)

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1986 (-111)RatingProvisional
Rating i Provisional Rating, click to know more

December Lunchtime 2021 Division 1(2022-12-20 00:00:00)

Global Rank:   161

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 (23)

February Challenge 2020 Division 2

School of Geometry

April Challenge 2020 Division 2

Strange Number, COVID Pandemic and Long Queue, Sell All the Cars

May Challenge 2020 Division 2

Coronavirus Spread, Isolation Centers

March Lunchtime 2020 Division 2 (Unrated)

Chef Swaps Digits, Good Prefix

April Lunchtime 2020 Division 2

Positive Mex

June Challenge 2020 Division 2

Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control

July Challenge 2020 Division 2

Ada King, Missing a Point, Chef and Card Game, Chef and Strings

July Cook-Off 2020 Division 1

Path-etic Products, Even-tual Reduction, OR-thodox Distinction

July Lunchtime 2020 Division 1

Binary Concatenation

June Cook-Off 2020 Division 2

Cache Hits, Max Mex

June Lunchtime 2020 Division 2

Chef and Demonetisation, Increasing Decreasing

RECode 12.0 (Rated for all)

Chef and Rotation, Chef and Numbers, Chef and Walk, Chef and String

Coders' Legacy (Rated for all)

Chef vs Doof, Doof on Cartesian, Doof fires Brackets

SPYBITS IIT BHU Division 2 (Rated)

B - Valentine Couples, C - Mission Gotham, D - Pilgrims Destination, A - Save Water Save Life

May Cook-Off 2021 Division 1

Double Burgers, Permutation Swaps

May CodeChef Starters 2021 Division 1 (Unrated)

Plagiarism

June Challenge 2021 Division 1 (Unrated)

Bella ciao, Summer Heat, Shortest Route

July Cook-Off 2021 Division 1

Beautiful Subsequence, Mod Equality

August Cook-Off 2021 Division 1

Odd Array, Different String, Clear the Array

August Lunchtime 2021 Division 1

Chef and Deque, Just a Graph

CodeChef Starters 10 Division 1 (Unrated)

Magical Flips

September Cook-Off 2021 Division 1

Chef and Pairwise Distances, Fake Swaps

SnackDown 2021 - Online Qualifiers

Lucky Number

CodeChef Starters 12 Division 1 (Unrated)

K - balanced string, Another Shortest Paths Problem, The Minimum Game

October Challenge 2021 Division 2 (Unrated)

MEX-OR, Longest AND Subarray

September Lunchtime 2021 Division 1

Alice vs Bob Faceoff

October Cook-Off 2021 Division 2

Can You Reach The End, Odd Sum, 01 Subsequence

October Lunchtime 2021 Division 2

Median Rearrangement, Chef and Water Car, Exactly N plus 1 Values

SnackDown 2021 - Online Round 1B

Help Nishant, Largest Laddu, Queens Placement

November Challenge 2021 Division 1 (Unrated)

Equal Coins

December Lunchtime 2021 Division 1

Optimal Sorting, Romantic Reversals

CodeChef Starters 21 Division 1 (Unrated)

And Or Union

Code Drive Division 1 (Unrated)

Sum this up, Again XOR problem, Maximum Factors Problem, Count Number of Peaks

January Long 2022 - I, Division 1 (Unrated)

Prime in a binary string

Total Problems Solved: 134