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Programming and DSA

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Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

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From beginner to job-ready. Explore our curated career paths designed to help you succeed in the tech industry.

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Programming and DSA

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Catalogue

Programming and DSA

Learn to think like a programmer. Develop your problem-solving skills with essential data structures and algorithms.

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Practice Compete Compiler
Home » Nguyen Nguyen
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Nguyen Nguyen

  • 7★flashmt
  •   Vietnam
  • Professional
  • N/A
  • No Active Plan. View Details

Submissions Heat Map

Rating Graph

No. of Contests Participated: 77
2576 (+43)RatingProvisional
Rating i Provisional Rating, click to know more
Starters 193 (Rated for all)(2025-07-02 22:30:00)
Global Rank:   13
Cheated in:   

Ratings System Update

(2025-07-02 22:30:00)
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2418 (+15)RatingProvisional
Rating i Provisional Rating, click to know more
May Cook-off 2018 Division 1(2022-12-20 00:00:00)
Global Rank:   9
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 (77)

April Long Contest

Gravel, Number Game Revisited, Rectangles Counting

April Cook-Off Challenge

A Prime Conjecture, Internet Media Types

May Long Contest 2011

Tree Product, The Great Wall of Byteland

May Cook-off 2011

Popular Rice Recipe, Socializing Game around Pizza, Packing the Golden Triangles, Distribute idlis Equally

June Long Contest 2011

Maximal Score Path, Chef Teams

June Cook-off

Correctness of Knight Move, Super-plane

July 2011 Long Contest

Large Kitchen, A-E Hash Function, Most Popular Friend

September Long Contest

Younger Brother, BIT Magazine

November Cook-Off

Moving Coins, Subanagrams

December 2011 Long Contest

Birthday Gift, Robot Movings, Ciel and Eggs

December Cook-Off

Ciel and New Menu, Ciel and A-B Problem

January 2012 Challenge

Houses and Restaurants, Gap Filler Game, Lucky Sum

February 2012 Challenge

Box and Ball System, Lucky Count, Restore the Recipe, Lucky Long, Word Couting, Count of Maximum

February 2012 Cook-off

Daily Train

March 2012 Challenge

Tom And Jerry, Longest Weird Subsequence, Cosine Partition Function, Lucky Number, Free Shuttle Service, Home Delivery, Spoon in Matrix

March Cook-Off 2012

Ciel Numbers I, Ciel Numbers II

April Challenge 2012

Lucky Array, Parallel Computing, Fit to Play, Double Strings, Stacking Pancakes, Greatest Dumpling Fight

April Cook-Off 2012

Selection for Training Camps, Top Batsmen, Crease Painting, Resistance, Best Buggy Ratings

May Challenge 2012

Digits Forest, Killing Gs, Little Elephant and Median, Jewels and Stones, Lucky lucky number, Divisible Pairs, Remember the recipe, Little Elephant and Boxes, A Home for Chef

May Cook-Off 2012

Little Elephant and Balance, Little Elephant and Swapping, Little Elephant and Strings

June Challenge 2012

Polynomial Partition Function, Little Elephant and Product, Little Elephant and Candies, Doom Bakes Cakes, Arranging Cup-cakes

August Challenge 2012

Little Elephant and Bombs, Lucky Driving, Range of Data, Delivery Boy

August Cook-Off 2012

Codechef Password Recovery, Forced Output, Code Crazy Minions

September Challenge 2012

Simultaneous Nim, Lights, Kisses & Hugs, Chef World, Racing Horses, Queries About Numbers, ChefTown Parade, Three is Crowd

October Challenge 2012

Team Formation, Little Elephant and Order, Fierce Battles, Event Organizer, Maximum Sub-rectangle in Matrix, Blade Master, The New Scheme, Need More Diamonds

September Cook-Off 2012

Prime Permutations, Recipe Reconstruction, Carvans, Coal Scam

November Challenge 2012

Lucky Balance, A Wonderful Chocolate, Delicious Dishes, Candy Collecting Game, Coin Flip, Jam Board, Many Left, Sridhar Likes Travelling

November Cook-Off 2012

Little Elephant and Lucky Segment, Little Elephant and Permutations, Little Elephant and Divisors

December Challenge 2012

Sereja and Data Structures , Granama Recipes, Book Exercises, Magic Rankings, The Uncountable Ways, Pizza Delivery

January Challenge 2013

Little Elephant and Alcohol, Dividing Products, The Minimum Number Of Moves, End Of The World, Chef of the Year, Three Different Numbers

February 2013 Challenge

Little Elephant and Cards, Buy1-Get1, Magic Board, Triangular Queries, Climbing Stairs, Word Play

March Challenge 2013

Random decreasing function, Tourist Translations, Festivals, Approximately, Fire Escape Routes

March Cook-off 2013

The Ball And Cups, Palindrome

April Challenge 2013

Little Elephant and Music, Barcelona Gameplay Tactics, ChefGame, Kingdom Unity, Maximum Weight Difference, Levy Conjecture

April Cook-Off 2013

Andrew and the Birthday, Andrew and the Meatballs, Andrew and the Strings, Andrew and the Meatballs again

May Challenge 2013

Matchsticks, Witua and Math, Tree Counting, Queries on tree again!, Password Cracking Challenge, Juno Puzzle for May, Name Reduction, Your Name is Mine, Field Trip

June Challenge 2013

Little Elephant and Mouses, Collecting Magical Berries, Just Some Permutations 3, Dessert Wizard, Two k-Convex Polygons, Predictopus, To challenge or not, W String, Lapindromes

May Cook-off 2013

XOR Sum, Subtraction Game 1, Subtraction Game 2, Sequence Transmission

June Cook-Off 2013

Attic Crossing, Lyra and the Alethiometer, Tywins Tactics, Transfiguring Trees, Party Planning

July Challenge 2013

Mountain Holidays, Galactik Football, The Probability Of Winning, Chef and Walking on the rectangle , Count K-Primes, Circle of death

Lunch Time July 2013

Cooking dishes, Paying optimally, Optimal Trip

August Challenge 2013

Little Elephant and Lemonade, Music & Lyrics, Hello Hello, Save The Princess, The Number Of Solutions, Chef and Segments, Sereja and Ballons, Splitting Candies

September Challenge 2013

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

October Cook-Off 2013

Polo the Penguin and the Lucky String, Polo the Penguin and the Numbers, Polo the Penguin and the Test, Polo the Penguin and the XOR

October Challenge 2013

Little Elephant and Bamboo, Helping Lira, Maxim and Dividers, Sereja and Transformation, CAO Stage-3, Yet Another Nice Girl, Kamehameha

November Challenge 2013

Superpowers of 2, Yet Another Cute Girl, Uncle Johny, Square Digit Squares, Missing some chairs

November Cook-off 2013

Am I a Fibonacci Number, Lowest Sum, Number of Paths, Trees and Subtrees, Rank of the Number

November Lunchtime 2013

Lucy and the Number Game

December Challenge 2013

Cube Cakes, Chef and Codes, Funny Marbles, Magic Pairs, Reign, Rectangular Queries

January Challenge 2014

Bon Appetit, Please like me, Chef and Feedback

April Cook-Off 2014

Snape and Ladder, BiCo Gaming Grid, Travelling Chef Problem

September Cook-Off 2014, ACM-ICPC Warm up

Sherlock and the Grid, Subarray GCD, Subarray LCM, World War 2, Updating Edges on Trees

October Cook-Off 2014

The Army, Walk on the Axis

March Challenge 2014

Team Split, Binary Tournament, Walk, Maximum number, GCD condition, Little Chef and Numbers, Mike and Stamps, A Story with Strings

April Challenge 2014

Final Battle of Chef, Counting Matrices, Farmer Feb, Cards, bags and coins, Chef and Digits, Divide the Tangerine, Shortest Path in Binary Trees

May Challenge 2014

Little Elephant and Balloons, Sereja and Game, Compilers and Parsers, Chef-jumping, Chef and Strange Matrix, Stone

August Challenge 2014

Mountain Holidays 2, Little Elephant and T-Shirts, Chef and Reversing, The Leaking Robot, Earthquake, Cleaning Tables, Chef and Gift

September Challenge 2014

Sereja and Bubble Sort, Chef and Rainbow Array - 2, Chef and Swaps, Chef and Left-Right, Chef and sequence, Fun with Rotation, Flooring

October Challenge 2014

Remy paints the fence, Chef and Ground, Chef and Square, Magical Girl and Colored Liquid Potions, DevuLand, Dinosaurs and Laddus

November Challenge 2014

Chef and Segment Game, Fombinatorial, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome

January Lunchtime 2014

Chef and Shop, Chef and String, Chef and Numbers, Chef and Way

August Lunchtime 2014

Harrenhal, Wall

September Lunchtime 2014

Chef and easy problem, Chef and easy problem 2, Chef and medium problem 2

April Challenge 2015

Count Sequences, Chef and Array, Chef and Interview, Broken Telephone, Inversion sorting, Chef and Piano Scales, Devus and their voting system

May Challenge 2015

Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe, Chef and Cake

September Challenge 2015

Chain of Doughnuts, Count Steps in Matrix, Bank robbery

April Cook-Off 2015

Lucky Fives, Taxi Driver, Equality, Version Control System

May Cook-Off 2015

Devu, his friends and birthday gifts, Devu and friendship testing, Devu and decorating birthday cake, Devu and most energetic minion

September Mega Cook-Off 2015

Reign 2, Counting Subgraphs, Forgotten Language, Super Numbers, Stacks

October Cook-Off 2015

Second LIS, Word Stem, Almost Sorted Permutation

January Long Challenge 2016

Rupsa and the Game, Churu and Balls, Chef and Time Machine, Devu and Perfume

May Cook-off 2018 Division 1

Difficult Choice, Best Cake Ever, Searching for the Recipe

SnackDown 2021 - Online Qualifiers

Lucky Number, Maximum Number Of Distinct Elements, Minimise Difference

SnackDown 2021 - Online Round 1A

Yet Another Flipping Problem, Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM

Starters 100 Division 1 (Rated)

Prime Permutation, Stamps 100, Concussive Sequence, Ant

Starters 102 Division 1 (Rated till 6 Stars)

Chess ELO, Parity Permutation, Circular Trouble, Light The Bulb, Chef Segment, Bit Play

Starters 111 Division 1 (Rated till 6 Stars)

LCM Mania, Prefixing, Prime Range Game, Beautiful Strings, Component Count, Square Count

Starters 193 (Rated for all)

Mex Tree (Min), Mex Tree (Max), Interactive MST, Shop Game (Easy), Add Permutation

Total Problems Solved: 417

2576
(Div 1)
★★★★★★★
CodeChef Rating (Highest Rating 2576)
  • 59 Global Rank
  • 1 Country Rank

Badges

Contest Contender - Gold Badge

Contest Contender - Gold Badge

Received for participating in 50 Contests

Problem Solver - Silver Badge

Problem Solver - Silver Badge

Received for solving 250 Problems

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