CodeChef

CodeChef Problems

Solutions to some of the questions on the CodeChef website.

The questions are divided into 6 categories:

• Beginner
• Easy
• Medium
• Hard
• Challenge
• Peer

Beginner

Problem Solution	Problem Statement
B0001	ATM
B0002	Enormous Input Test
B0003	Small factorials
B0004	Add Two Numbers
B0005	The Block Game
B0006	Turbo Sort
B0007	Sum of Digits
B0008	The Lead Game
B0009	Find Remainder
B0010	Number Mirror
B0011	Lucky Four
B0012	First and Last Digit
B0013	Reverse The Number
B0014	Ciel and Receipt
B0015	Finding Square Roots
B0016	Chef and Remissness
B0017	Second Largest
B0018	Ambiguous Permutations
B0019	Small Factorial
B0020	Servant
B0021	Cutting Recipes
B0022	Smallest Numbers of Notes
B0023	Valid Triangles
B0024	Chef And Operators
B0025	Primality Test
B0026	Mahasena
B0027	Id and Ship
B0028	Fit Squares in Triangle
B0029	Three Way Communications
B0030	The Smallest Pair
B0031	Total Expenses
B0032	GCD and LCM
B0033	Tanu and Head-bob
B0034	Gross Salary
B0035	Greedy puppy
B0036	Transform the Expression
B0037	Packaging Cupcakes
B0038	Sums in a Triangle
B0039	Grade The Steel
B0040	Puppy and Sum
B0041	Chef and Two Strings
B0042	Chef and Fruits
B0043	Chef and the Wildcard Matching
B0044	Cops and the Thief Devu
B0045	Minimum Maximum
B0046	Piece of cake
B0047	Chef and Dolls
B0048	Coins And Triangle
B0049	Malvika is peculiar about color of balloons
B0050	Farmer And His Plot
B0051	Help Lost Robot!
B0052	Version Control System
B0053	Kitchen Timetable
B0054	Good Joke!
B0055	Forgotten Language
B0056	Chef and his Sequence
B0057	Chef and digits of a number
B0058	Movie Weekend
B0059	Chef And Coloring
B0060	Devu and friendship testing
B0061	Alternating subarray prefix
B0062	Devu and Grapes
B0063	Count Subarrays
B0064	Studying Alphabet
B0065	Palindromic substrings
B0066	Bear and Candies 123
B0067	Two Numbers
B0068	Brackets
B0069	Chef and Rainbow Array
B0070	Cats and Dogs
B0071	Download file
B0072	Chef and String
B0073	Sum OR Difference
B0074	Lazy Jem
B0075	Sticks
B0076	Rectangle
B0077	Chef and Subarrays
B0078	Simple Statistics
B0079	Gregorian Calendar
B0080	Tickets
B0081	Chef and Table Tennis
B0082	Beautiful Arrays
B0083	Two vs Ten
B0084	Decrement OR Increment
B0085	Chef and Cook-Off
B0086	Snake Procession
B0087	Chef and his Students
B0088	Similar Dishes
B0089	Temple Land
B0090	Strange operations
B0091	Chef and Chocolate
B0092	Truth and Dare
B0093	Event
B0094	Is it a VOWEL or CONSONANT
B0095	Area OR Perimeter
B0096	HOW MANY DIGITS DO I HAVE
B0097	From heaven to earth
B0098	Train Partner
B0099	One more weird game
B0100	Find the Maximum Value
B0101	Playing with Matches
B0102	Check Algorithm

Easy

Problem Solution	Problem Statement
E0001	Life, the Universe, and Everything
E0002	Factorial
E0003	Ciel and A-B Problem
E0004	Racing Horses
E0005	Cleaning Up
E0006	Uncle Johny
E0007	Coin Flip
E0008	Paying up
E0009	Name Reduction
E0010	Internet Media Types
E0011	Nuclear Reactors
E0012	Carvans
E0013	Buying Sweets
E0014	Jewels and Stones
E0015	Chef and Feedback
E0016	Maximum Weight Difference
E0017	Discrepancies in the Voters List
E0018	Dividing Stamps
E0019	Farmer Feb
E0020	Little Elephant and Permutations
E0021	Arranging Cup-cakes
E0022	A Very Easy Problem!
E0023	Prime Generator
E0024	Splitting Candies
E0025	Number Game Revisited
E0026	Chef-jumping
E0027	The Minimum Number Of Moves
E0028	Subtraction Game 1
E0029	Subtraction Game 2
E0030	Little Elephant and Bombs
E0031	Your Name is Mine
E0032	Copy-Paste
E0033	Tourist Translations
E0034	Magic Pairs
E0035	Decreasing String
E0036	Chef and Notebooks
E0037	Divide the Cake
E0038	Chopsticks
E0039	Open the Dragon Scroll
E0040	The Ball And Cups
E0041	Please like me
E0042	Walk on the Axis
E0043	Lucky Long
E0044	Walk
E0045	Chef and Ground
E0046	Suraj goes shopping
E0047	Subarray GCD
E0048	Chef and Subarray
E0049	Attic Crossing
E0050	Code Crazy Minions
E0051	GCD2
E0052	Count Substrings
E0053	The Best Box
E0054	Beautiful Garland
E0055	A-B Game
E0056	Permutation Cycles
E0057	Most Frequent Element
E0058	Chef and Gift
E0059	Chef and easy problem
E0060	Cutting Pizza
E0061	Beats and Pieces
E0062	Little Elephant and Strings
E0063	Recipe Reconstruction
E0064	Fit to Play
E0065	Not a Triangle
E0066	Compilers and parsers
E0067	Stone
E0068	Andrew and the Meatballs
E0069	Chef and Stones
E0070	Row and Column Operations
E0071	Chef and Kingship
E0072	The Way to a Friends House Is Never Too Long
E0073	Approximately
E0074	Longest Common Pattern
E0075	Sum Queries
E0076	Paying up
E0077	The Army
E0078	Broken Telephone
E0079	Little Elephant and Divisors
E0080	Sherlock and the Grid
E0081	Distinct Characters Subsequence
E0082	Little Chef and Numbers
E0083	Three Different Numbers
E0084	Chef and Frogs
E0085	Shortest Path in Binary Trees
E0086	Johnny and the Beanstalk
E0087	Fire Escape Routes
E0088	The Morning Commute
E0089	Processing a string
E0090	Two Groups
E0091	Stupid Machine
E0092	Guess the number
E0093	The Evil Professor

Medium

Problem Solution	Problem Statement
M0001	Bytelandian gold coins
M0002	Closing the Tweets