Tran Khanh Hiep

• Username: 5★hieptk
• Country:  Vietnam
• Student/Professional:Professional
• Organisation:Spotify
• 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: 15

Current Ratings Graph Old Ratings Graph

2095 (+5)RatingProvisional
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Starters 224 (Rated till 6 star)(2026-02-04 22:00:00)

Global Rank:   86

Cheated in:   

Ratings System Update

(2026-02-04 22:00:00)

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1768 (-38)RatingProvisional
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June Challenge 2016(2022-12-20 00:00:00)

Global Rank:   6566

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 (15)

September Challenge 2013

Cool Guys, Chef and Integers , Project Spoon, CAO Stage-1, CAO Stage-2, Little Elephant and Exams

October Challenge 2013

Helping Lira, Maxim and Dividers

August Challenge 2015

Way Out, Gravity Guy, Devu And Churu , Cooking Machine, Aditi and Magic Trick, Chef and insomnia

November Challenge 2015

Simple Sum, Chef and cakes, Eugene and function

July Lunchtime 2015

Greedy puppy, Puppy and game, Puppy and cats

August Lunchtime 2015

Churu and lost string, Make Palindrome, Minimum Maximum

September Lunchtime 2015

Coffee Breaks, Pattern matching, Sum of palindromic numbers

March Challenge 2016

maximize the sum

Starters 106 Division 2 (Rated)

Save People, Reach Anywhere, Count Possibilities, Playing with OR, Guess the winner!

Starters 114 Division 2 (Rated)

Yet another Matrix problem, Rock-Paper-Scissors, Christmas Candy

Starters 159 (Rated)

Super Hero, Random Nim, Glass Bridge (Easy), Chess Colouring, Elections

Starters 162 (Rated till 5 stars)

Permutation Mod K, Sum of Empty the String, MEX of XOR, Empty the String

Starters 218 (Rated till 5 stars)

Collatz Conjecture (Hard), Collatz Conjecture (Easy), Deleting Array Again, Counting Optimal Arrays

Starters 224 (Rated till 6 star)

Advitiya Coin, Accommodation, MAX MIN MEX, Tree Walk 2

Monday Munch - DSA Challenge 28

Alternating Array, Largest bst in binary tree, Chef Finds Cheapest Flights, Chef Counts Enclaves

Total Problems Solved: 114