Roushan Kumar Singh
- 5★roushan_17
- Hey I love to program I like mathematics and use it to build logic and sync it with programming language
- India
- Success is directly proportional to trying
- Student
- National Institute of Technology Raipur Chhattisgarh, India
- List of teams by Roushan Kumar Singh
- https://discuss.codechef.com/u/roushan_17
- No Active Plan. View Details
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Submissions
Practice Problems (243):
Practice:
Transform the Expression, Factorial, Small factorials, Bytelandian gold coins, Ambiguous Permutations, Enormous Input Test, Sums in a Triangle, Simple Sorting, ATM, Life, the Universe, and Everything, The Lead Game, Cleaning Up, Cutting Recipes, Three Way Communications, Ciel and A-B Problem, Closing the Tweets, Racing Horses, Ciel and Receipt, Coin Flip, Packaging Cupcakes, Lapindromes, Uncle Johny, Number Mirror, Chef and Feedback, Farmer Feb, Chef and Remissness, Chef and Chain, The Smallest Pair, Tanu and Head-bob, Brackets, Chef and Keyboard, Chef and Stones, Good Joke!, Fit Squares in Triangle, Piece of cake, Lucky Four, Version Control System, Tickets, Devu and Grapes, Add Two Numbers, Find Remainder, First and Last Digit, Smallest Numbers of Notes, Sum of Digits, Reverse The Number, Helping Chef, Total Expenses, Id and Ship, Gross Salary, Valid Triangles, Grade The Steel, GCD and LCM, Second Largest, Small Factorial, Primality Test, Finding Square Roots, The Block Game, Farmer And His Plot, Chef and Dolls, Chef and his Sequence, Devu and friendship testing, Rupsa and the Game, Entrance Exam, Cops and the Thief Devu, Chef and Table Tennis, Count Subarrays, Chef and Two Strings, Greedy puppy, Forgotten Language, Chef and the Wildcard Matching, Minimum Maximum, Chef And Operators, Mahasena, Mutated Minions, Palindromic substrings, Chef and Subarrays, Chef and Fruits, Malvika is peculiar about color of balloons, Chef and digits of a number, Alternating subarray prefix, Puppy and Sum, Bipin vs Balajiganapathi , Simple Statistics, Ada and crayons, Chef And Coloring, Movie Weekend, Cats and Dogs, Coins And Triangle, Kitchen Timetable, Sticks, Studying Alphabet, Lazy Jem, Life ,Universe and Everything, Help Lost Robot!, Download file, Chef and his Students, Chef and Subset, Birthday Pizza Party, Bear and Ladder, Similar Dishes, Bear and Candies 123, A Good Set, Chef and the Feast, Xenny and Coin Rankings, Two Numbers, Whats in the Name, Calculator , Easy Arithmetic, Find the Maximum Value, Good Pairs, Real obtuse, From heaven to earth, Chef and Cook-Off Contests, Obtain Desired Standard Deviation, Ordering teams, K Fibonnaci, Random Pair, Chef And his Cake, Football Match, Chef and Game with Sequence, Chef and Cook-Off, Minions and Voting, Chef Judges a Competition, Cut the Board, Trace of Matrix, Sum OR Difference, Decrement OR Increment, Area OR Perimeter, HOW MANY DIGITS DO I HAVE, Program Your Own CALCULATOR, Is it a VOWEL or CONSONANT, Chef and Bored Games, Chef and Polygon Cakes, Ada School, Appy and Balloons , ATM Machine, Qualifying to Pre-Elimination, Chef and SnackDown, Graph on an Array, Ada and the Staircase, Chef and Typing, A Game of Robots, Reduction Game, Old Farmer, Chef and Two Queens, Buying New Tablet, FlatLand, Chefina and Ranges, Maximize an Expression, Chef Drinks Coke, Playing with Matches, Chocolate Progression, Find the Sum, Sticky Notes, Lavanya Loves DFA, Are These Equal, Mr Pr in a Dilemma , Chef and his Date, Avenir Strings, 2020 Carnival, Friendly Imran, Yet to decide the Name, Triangle Love Part 2, Maximize LCM, Strip in a Tree!, Chef Swaps Digits, Good Prefix, Chef and Trump Cards, D-Dimensional MST, Restore Sequence, Ada and Dishes, Hospital in Berland, Magical Candy Store, OCTAVE TUNES, Rabbit Race, Kevin and the Cube, Scalar Product Tree, Iron, Magnet and Wall, Maximum Value, Prime Tuples, College Life 2, Maximise Islands, Average Sorting, Chef and Coupon, A Special Tree, Valid Pair, Strong Language, B - Valentine Couples, A - Save Water Save Life, Intersection Matrix, Double Burgers, Chef and Spells, Beautiful Pairs, Red Alert, Array Rotation Returns, Longest Good Segment, Minimise Difference, P Equal To NP, Geometric Mean Inequality, Sasta Shark Tank, Antipodal Points, Chef And Division, Six Friends, Best Coupon, Pseudo Sorted Array, Prime Xor, Vowel Anxiety, Array sorting, Sort the String, Sum of Cube , Love Squares Hate Cubes, K-Beautiful Subarrays, Beautiful Strings, Unimodal Subsets, Good XOR, Distinct Matrix, Divide Pages, Arrange the array, Binary Ternary, Find eX, Make A-B Same, Difference Matrix, MIN To MAX, SUM OR, Crazy Bishops on Chessboard, Efficient PAN Linking, Inside The Stadium, Card Swipe, Exclusion-Inclusion, Interesting Swap, Bit Play, Tom and Jerry, Prefixing, Beautiful Strings, Reach Codetown, Yet another Matrix problem, Chef and Tag, Rock-Paper-Scissors, Greedy LIS Algorithm, Binary Grid Forces, Make All Zero, Chef Product, ORST
Contests (265):
November Challenge 2017:
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
November Challenge 2018 Division 2:
Chef and Ridges, Chef and Difficult Contests, Chef and Happiness
January Challenge 2019 Division 2:
Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
June Challenge 2019 Division 2:
Road Signs, Chef and Proxy, Guddu on a Date, Chef and Ingredients, Sum and GCD
August Challenge 2019 Division 2:
Guddu and his Mother, Dilemma, Football, Distribute Apples, Zombie and the Caves
February Challenge 2020 Division 2:
No Change Required, The Theatre Problem, School of Geometry, Hard Cash, Long Contest and Cook Off Overlaps
DSA Learning Series - Contest 1:
Factorial, Life, the Universe, and Everything, Coin Flip, Carvans, Lapindromes, Reverse The Number, Smart Phone, Laddu, Multiple of 3
June Challenge 2020 Division 2:
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
August Challenge 2020 Division 2:
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP
October Cook-Off 2020 Division 2:
Split the Str Ing, Decreasing Srrnmieeda, Path-etic Sums, Yet Another Crossover Episode
February Challenge 2021 Division 2:
Frog Sort, Team Name, Prime Game, Multiple Games, XOR Sums, Maximise Function
March Challenge 2021 Division 2:
Interesting XOR!, Dense Graph, College Life 4, Consecutive Adding, Paparazzi Gennady, Space Arrays, Wireless Electricity (Challenge), Locked Safe, Maximum Topological Sort
April Challenge 2021 Division 2:
Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip, Chef and Dice, Boolean Game
CODE Team Expansion 2021:
Modular Inverse, Testing Harry, Fibonacci Madness, Prime Sum, Making Change
May Challenge 2021 Division 2 (Rated):
Valid Paths, Tree House, An Interesting Sequence, King Killing, Xor Equality, Tic Tac Toe, Modular Equation, Golf, Solubility
August Challenge 2021 Division 1 (Unrated):
Special Triplets, Chef and Bulb Invention, Problem Difficulties, Olympics Ranking
Starters 79 Division 2 (Rated):
Mountain, One Stone or Two Stones, Add smallest prime factor, Distinct Opposite Sums
Starters 112 Division 2 (Rated):
Cursed Indices, 3 Logicians Walk into a Bar, Yet Another Array Game, Permutation Construction, Max Nutrition
Learning Paths (0):
None
Practice Paths (28):
Rise from 3* to 4*:
Maximum Size, Ada King, Snakes and transition from Capitalism to Socialism, IS IT DSU HARD!!, Find Tree Diameter
Practice for ZCO and INOI:
Smart Phone, Video Game, Variation, Tournament, Matched Brackets, Chewing
Contributions
Problems Authored (0)
No Contribution
Problems Tested (0)
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Editorials Contributed (0)
No Contribution