Dianlin Xie

• Username: 7★worldwided
• Country:  China
• Student/Professional:Student
• Institution:Peking University
• 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: 11

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2531 (+18)RatingProvisional
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October Challenge 2019 Division 1(2019-10-14 15:00:00)

Global Rank:   30

Cheated in:   

Ratings System Update

(2019-10-14 15:00:00)

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2531 (+98)RatingProvisional
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October Challenge 2019 Division 1(2022-12-20 00:00:00)

Global Rank:   30

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 (11)

July Challenge 2017

Pishty and tree, Tree Expectancy, Whats in the Name, Calculator , IPC Trainers, Chef and Sign Sequences

September Challenge 2017

Sum of Cubes, Little Chef and Sums, Fill The Matrix, Weasel does Xor on Tree, Minimum Good Permutation, Chef and Pick Digit, Sereja and Commands

October Challenge 2017

Max Mex, Lucky Edge, (Challenge) Connecting computers, A Balanced Contest, Counter Test For CHEFSUM, Shooting on the array, Chef and Cycled Cycles, Chef and a great voluntary Program, Chef and Magic Arrays

December Challenge 2017

Chef And Easy Xor Queries, Chef and Hamming Distance of arrays, Red and blue points, Penalty Shoot-out, Chef, Leonardo And Queries, Chef And his Cake, Total Diamonds, Chef and Universe

January Challenge 2018

Rectangle, Partition the numbers, String Merging, Maximum Score, K-Concatenation, Simplify the Square Root, Killjee and k-th letter , (Challenge) Chef and Palindromes, A humongous Query, Killing Monsters

March Challenge 2018 DIV 1

Minions and Voting, Mix the Colors, Chef and Gcd Queries, Chef and Easy Problem, Chef Cuts Tree, Chef and Interval Painting, Pishty and Triangles

April Challenge 2018 Division 1

Vaibhav and Ministers, Cutting Plants, S Semi-palindromic, Highway Crossing, Chef and Same Old Recurrence, Count Good Prefixes

May Challenge 2018 Division 1

Dibs on Fibs, Fake Binary Search, Change the Signs

June Challenge 2018 Division 1

Two Flowers, Vision, Ways to Work, Expected Buildings, Archi and Tree, Binary Board

July Challenge 2018 Division 1

Tom and Jerry, Gears, No Minimum No Maximum, Reach Equilibrium, Picking Fruit for Chefs, Pizza Delivery

October Challenge 2019 Division 1

Queries on Matrix, Even Edges, Bacterial Reproduction, Chef and Maximum Star Value, Fun with Lists, Array Modification

Total Problems Solved: 82