xuanji

• Username: 4★xuanji
• Country:  Singapore
• Student/Professional:Student
• Institution:National University of Singapore
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

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

Rating Graph

No. of Contests Participated: 10

Current Ratings Graph Old Ratings Graph

1904 (+80)RatingProvisional
Rating i Provisional Rating, click to know more

January Lunchtime 2022 Division 2(2022-01-29 23:00:02)

Global Rank:   31

Cheated in:   

Ratings System Update

(2022-01-29 23:00:02)

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?

1904 (-237)RatingProvisional
Rating i Provisional Rating, click to know more

January Lunchtime 2022 Division 2(2022-12-20 00:00:00)

Global Rank:   31

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 (10)

September Challenge 2014

Fun with Rotation, Chef and Left-Right

February Lunchtime 2014

Sereja and ASum

July Challenge 2020 Division 2

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

August Lunchtime 2020 Division 1

Game on a Strip

June Cook-Off 2020 Division 2

Cache Hits, Max Mex, Checkpoints

January Challenge 2021 Division 2

Watching CPL, Fair Elections

December Challenge 2020 Division 1

Hail XOR, Positive Prefixes, Even Pair Sum

Coders' Legacy (Rated for all)

Jeremy gets a gift, Doof fires Brackets, Chef vs Doof, Doof on Cartesian

SnackDown 2021 - Online Qualifiers

Lucky Number

October Challenge 2021 Division 2 (Unrated)

Longest AND Subarray

CodeChef Starters 21 Division 2 (Rated)

Akash and Grid, ChefWM, And Or Union, The Melancholy of Problem Setter

CodeChef Starters 23 Division 2 (Unrated)

Subarray Mex, Non Zero Subarray Xor, Maximising Vacations, Maximise the Minimum, Average of Three

January Lunchtime 2022 Division 2

Subarray permutations, Prefix Zeros, Permutation XOR Sum

February Long 2022 - I, Division 1 (Unrated)

Remove Adjacent

July Long One 2022 Division 1 (Unrated)

Game of Piles Version 1, Find A, B, C

Total Problems Solved: 55