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1442 lines (1442 loc) · 32.8 KB
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[
{
"id": "1",
"name": "Fizz Buzz",
"summary": "A simple game involving divisibility tests.",
"category": "easy"
},
{
"id": "2",
"name": "Longest Lines",
"summary": "Finding the 'N' longest lines within a file.",
"category": "moderate"
},
{
"id": "3",
"name": "Prime Palindrome",
"summary": "Biggest prime palindrome < 1000.",
"category": "easy"
},
{
"id": "4",
"name": "Sum of Primes",
"summary": "Sum of first 1000 primes.",
"category": "easy"
},
{
"id": "5",
"name": "Detecting Cycles",
"summary": "Detecting loops within a sequence.",
"category": "moderate"
},
{
"id": "6",
"name": "Longest Common Subsequence",
"summary": "LCS between two strings.",
"category": "hard"
},
{
"id": "7",
"name": "Prefix expressions",
"summary": "Evaluating a prefix expression.",
"category": "hard"
},
{
"id": "8",
"name": "Reverse words",
"summary": "Reversing an input sequence of words.",
"category": "easy"
},
{
"id": "9",
"name": "Stack Implementation",
"summary": "Implement a stack interface.",
"category": "moderate"
},
{
"id": "10",
"name": "Mth to last element",
"summary": "Determine the Mth to last element of a list.",
"category": "moderate"
},
{
"id": "11",
"name": "Lowest Common Ancestor",
"summary": "Determine the lowest common ancestor within a tree.",
"category": "moderate"
},
{
"id": "12",
"name": "First Non-Repeated Character",
"summary": "Find the first non repeated character in a string.",
"category": "moderate"
},
{
"id": "13",
"name": "Remove Characters",
"summary": "Delete specific characters from a string.",
"category": "moderate"
},
{
"id": "14",
"name": "String Permutations",
"summary": "Print out all permutations of a string.",
"category": "hard"
},
{
"id": "15",
"name": "Endianness",
"summary": "Determine the endianness of a system.",
"category": "moderate"
},
{
"id": "16",
"name": "Number of Ones",
"summary": "Determine the number of one bits in an integer.",
"category": "moderate"
},
{
"id": "17",
"name": "Sum of integers",
"summary": "Determine the largest sum of contiguous integers in an array.",
"category": "moderate"
},
{
"id": "18",
"name": "Multiples of a Number",
"summary": "Multiples of a number greater than another number.",
"category": "easy"
},
{
"id": "19",
"name": "Bit Positions",
"summary": "Bits in position x,y are same or different.",
"category": "easy"
},
{
"id": "20",
"name": "Lowercase",
"summary": "Lowercase text.",
"category": "easy"
},
{
"id": "21",
"name": "Sum of Digits",
"summary": "Sum of digits comprising a number.",
"category": "easy"
},
{
"id": "22",
"name": "Fibonacci Series",
"summary": "Print out the nth fibonacci number.",
"category": "easy"
},
{
"id": "23",
"name": "Multiplication Tables",
"summary": "Print out the grade school multiplication table upto 12*12.",
"category": "easy"
},
{
"id": "24",
"name": "Sum of Integers from File",
"summary": "Print the sum of integers read from a file.",
"category": "easy"
},
{
"id": "25",
"name": "Odd Numbers",
"summary": "Print the odd numbers from 1 to 99.",
"category": "easy"
},
{
"id": "26",
"name": "File Size",
"summary": "Print the file size in bytes.",
"category": "easy"
},
{
"id": "27",
"name": "Decimal To Binary",
"summary": "Print the binary representation of a decimal number.",
"category": "moderate"
},
{
"id": "28",
"name": "String Searching",
"summary": "Determine if substring match exists.",
"category": "hard"
},
{
"id": "29",
"name": "Unique Elements",
"summary": "Extract unique list from a sorted list of numbers.",
"category": "easy"
},
{
"id": "30",
"name": "Set Intersection",
"summary": "Print the intersection of two sets of numbers.",
"category": "easy"
},
{
"id": "31",
"name": "Rightmost Char",
"summary": "Print the position of the rightmost occurrence of a char.",
"category": "easy"
},
{
"id": "32",
"name": "Trailing String",
"summary": "Determine if a string 'B' occurs at the end of string 'A'.",
"category": "moderate"
},
{
"id": "33",
"name": "Double Squares",
"summary": "FaceBook Hacker Cup 2011: Output the number of ways to write X as the sum of two squares.",
"category": "moderate"
},
{
"id": "34",
"name": "Number Pairs",
"summary": "Find pairs of numbers in a sorted array whose sum is X.",
"category": "moderate"
},
{
"id": "35",
"name": "Email Validation",
"summary": "Write a regular expression to validate an email address.",
"category": "moderate"
},
{
"id": "36&qu
802E
ot;,
"name": "Message Decoding",
"summary": "Decode an encoded message.",
"category": "hard"
},
{
"id": "37",
"name": "Pangrams",
"summary": "Find the missing alphabets.",
"category": "moderate"
},
{
"id": "38",
"name": "String List",
"summary": "Create a new string from constituent alphabets.",
"category": "hard"
},
{
"id": "39",
"name": "Happy Numbers",
"summary": "Determine if a number is a happy number or not.",
"category": "easy"
},
{
"id": "40",
"name": "Self Describing Numbers",
"summary": "Determine if a number is a self-describing number or not.",
"category": "easy"
},
{
"id": "41",
"name": "Array Absurdity",
"summary": "Determine if an array contains a duplicated entry.",
"category": "moderate"
},
{
"id": "42",
"name": "Ugly Numbers",
"summary": "Count the number of expressions that can be created from a number.",
"category": "hard"
},
{
"id": "43",
"name": "Jolly Jumpers",
"summary": "Determine if a sequence of numbers is a Jolly Jumper.",
"category": "moderate"
},
{
"id": "44",
"name": "Following Integer",
"summary": "Determine the next number in a sequence.",
"category": "hard"
},
{
"id": "45",
"name": "Reverse and Add",
"summary": "Continually add a number to its reverse to arrive at a palindrome.",
"category": "moderate"
},
{
"id": "46",
"name": "Prime Numbers",
"summary": "Print prime numbers less than N.",
"category": "moderate"
},
{
"id": "47",
"name": "Palindromic Ranges",
"summary": "Find out a range of palindromic numbers.",
"category": "hard"
},
{
"id": "48",
"name": "Discount Offers",
"summary": "Determine optimal pairing of customers with products.",
"category": "hard"
},
{
"id": "49",
"name": "Peak Traffic",
"summary": "Finding out which friends you interact with most.",
"category": "hard"
},
{
"id": "50",
"name": "String Substitution",
"summary": "Create a new string by replacing substrings within it.",
"category": "hard"
},
{
"id": "51",
"name": "Closest Pair",
"summary": "Given a set of points in a two dimensional space, you will have to find the distance between the closest two points.",
"category": "hard"
},
{
"id": "52",
"name": "Text Dollar",
"summary": "Print out the text dollar amount of a given quantity.",
"category": "hard"
},
{
"id": "53",
"name": "Repeated Substring",
"summary": "Find the longest repeated substring in a given text.",
"category": "hard"
},
{
"id": "54",
"name": "Cash Register",
"summary": "Determine the amount of change to be returned.",
"category": "moderate"
},
{
"id": "55",
"name": "Type Ahead",
"summary": "Building a type ahead feature.",
"category": "hard"
},
{
"id": "56",
"name": "Robot Movements",
"summary": "Number of ways a robot can reach its destination.",
"category": "hard"
},
{
"id": "57",
"name": "Spiral Printing",
"summary": "Print out a 2D array in spiral order.",
"category": "hard"
},
{
"id": "58",
"name": "Levenshtein Distance",
"summary": "Find out how big the social network of a word is.",
"category": "hard"
},
{
"id": "59",
"name": "Telephone Words",
"summary": "Print out the words corresponding to a telephone number.",
"category": "hard"
},
{
"id": "60",
"name": "Grid Walk",
"summary": "The number of grid points that can be accessed.",
"category": "hard"
},
{
"id": "61",
"name": "Decryption",
"summary": "Determine the plain text message from an encrypted string.",
"category": "hard"
},
{
"id": "62",
"name": "N Mod M",
"summary": "Determine the modulus (without the modulus operator).",
"category": "easy"
},
{
"id": "63",
"name": "Counting Primes",
"summary": "Count the number of primes between two integers.",
"category": "moderate"
},
{
"id": "64",
"name": "Climbing Stairs",
"summary": "Count the number of ways to climb to the top of a staircase.",
"category": "hard"
},
{
"id": "65",
"name": "Word Search",
"summary": "Find if a word exists in a grid.",
"category": "hard"
},
{
"id": "66",
"name": "Pascals Triangle",
"summary": "Print out pascals triangle upto a certain depth.",
"category": "moderate"
},
{
"id": "67",
"name": "Hex to Decimal",
"summary": "Convert a hex number to it's decimal equivalent.",
"category": "easy"
},
{
"id": "68",
"name": "Valid parentheses",
"summary": "Determine if string is a well-formed parentheses.",
"category": "moderate"
},
{
"id": "69",
"name": "Distinct Subsequences",
"summary": "Determine the number of distinct subsequnces within a string.",
"category": "hard"
},
{
"id": "70",
"name": "Overlapping Rectangles",
"summary": "Determine if two rectangles overlap.",
"category": "moderate"
},
{
"id": "71",
"name": "Reverse Groups",
"summary": "Reverse elements in a list k items at a time.",
"category": "moderate"
},
{
"id": "72",
"name": "Minimum Path Sum",
"summary": "Calculate the minimum sum of a path through a matrix.",
"category": "hard"
},
{
"id": "73",
"name": "Decode Numbers",
"summary": "Count the number of ways to decode a string.",
"category": "moderate"
},
{
"id": "74",
"name": "Minimum Coins",
"summary": "Find the minimum number of coins to arrive at a total.",
"category": "moderate"
},
{
"id": "75",
"name": "Flavius Josephus",
"summary": "Eliminate every i'th item from a circular list.",
"category": "moderate"
},
{
"id": "76",
"name": "String Rotation",
"summary": "Find if a string is the rotation of another string.",
"category": "moderate"
},
{
"id": "77",
"name": "Da Vyncy",
"summary": "Recreate a document from a set of fragments.",
"category": "hard"
},
{
"id": "78",
"name": "Sudoku",
"summary": "Determine if a grid layout is a valid sudoku solution.",
"category": "moderate"
},
{
"id": "79",
"name": "Minesweeper",
"summary": "Find the mines within a M*N matrix.",
"category": "hard"
},
{
"id": "80",
"name": "URI Comparison",
"summary": "Determine if two URIs match.",
"category": "moderate"
},
{
"id": "81",
"name": "Sum to Zero",
"summary": "Count of ways in which the sum of four numbers is zero.",
"category": "moderate"
},
{
"id": "82",
"name": "Armstrong Numbers",
"summary": "Determine if a number is an armstrong number.",
"category": "easy"
},
{
"id": "83",
"name": "Beautiful Strings",
"summary": "Facebook Hacker Cup 2013 problem.",
"category": "easy"
},
{
"id": "84",
"name": "Balanced Smileys",
"summary": "Facebook Hacker Cup 2013 problem.",
"category": "moderate"
},
{
"id": "85",
"name": "Find Min",
"summary": "Facebook Hacker Cup 2013 problem.",
"category": "hard"
},
{
"id": "86",
"name": "Poker hands",
"summary": "Compare two poker hands.",
"category": "hard"
},
{
"id": "87",
"name": "Query Board",
"summary": "Set and get values from a matrix using tiny DSL.",
"category": "easy"
},
{
"id": "88",
"name": "Juggle Fest",
"summary": "A challenge from Yodle.",
"category": "hard"
},
{
"id": "89",
"name": "Pass Triangle",
"summary": "Lead the way within the triangle.",
"category": "moderate"
},
{
"id": "90",
"name": "Commuting Engineer",
"summary": "Travelling Salesman Problem.",
"category": "hard"
},
{
"id": "91",
"name": "Simple Sorting",
"summary": "Sort several numbers.",
"category": "easy"
},
{
"id": "92",
"name": "Penultimate Word",
"summary": "Find the next-to-last word.",
"category": "easy"
},
{
"id": "93",
"name": "Capitalize Words",
"summary": "Capitalize words in a sentence.",
"category": "easy"
},
{
"id": "94",
"name": "Simple Calculator",
"summary": "Create a simple calculator.",
"category": "moderate"
},
{
"id": "95",
"name": "Advanced Calculator",
"summary": "Create an advanced calculator.",
"category": "hard"
},
{
"id": "96",
"name": "Swap Case",
"summary": "Swap case in a string.",
"category": "easy"
},
{
"id": "97",
"name": "Find a Writer",
"summary": "Find a famous writer in a string.",
"category": "easy"
},
{
"id": "98",
"name": "Point in Circle",
"summary": "Define whether a point is in a circle.",
"category": "moderate"
},
{
"id": "99",
"name": "Calculate Distance",
"summary": "Calculate a distance between two points.",
"category": "easy"
},
{
"id": "100",
"name": "Even Numbers",
"summary": "Determine if a number is even or not.",
"category": "easy"
},
{
"id": "101",
"name": "Find a Square",
"summary": "Do 4 points make a square?",
"category": "moderate"
},
{
"id": "102",
"name": "JSON menu IDs",
"summary": "Calculate IDs in JSON menu.",
"category": "easy"
},
{
"id": "103",
"name": "Lowest Unique Number",
"summary": "Find the lowest unique number in a set.",
"category": "easy"
},
{
"id": "104",
"name": "Word to Digit",
"summary": "Substitute words to digits.",
"category": "easy"
},
{
"id": "105",
"name": "Largest Sub-Matrix",
"summary": "Determine the largest sub-matrix in a matrix.",
"category": "hard"
},
{
"id": "106",
"name": "Roman Numerals",
"summary": "Convert a cardinal number to a Roman numeral.",
"category": "easy"
},
{
"id": "107",
"name": "Shortest Repetition",
"summary": "Find the shortest repetition in a string.",
"category": "easy"
},
{
"id": "108",
"name": "Computer Terminal",
"summary": "Print text to terminal with control sequences.",
"category": "hard"
},
{
"id": "109",
"name": "Bay Bridges",
"summary": "Build Bridges Over San Francisco Bay.",
"category": "hard"
},
{
"id": "110",
"name": "Text to Number",
"summary": "Convert English text representation of a number to a decimal number.",
"category": "hard"
},
{
"id": "111",
"name": "Longest Word",
"summary": "Get the longest word in a sentence.",
"category": "easy"
},
{
"id": "112",
"name": "Swap Elements",
"summary": "Swap elements in a list.",
"category": "easy"
},
{
"id": "113",
"name": "Multiply Lists",
"summary": "Multiply elements in 2 lists.",
"category": "easy"
},
{
"id": "114",
"name": "Package Problem",
"summary": "Put as many things into a package as possible.",
"category": "hard"
},
{
"id": "115",
"name": "Mixed Content",
"summary": "Separate words with digits.",
"category": "easy"
},
{
"id": "116",
"name": "Morse Code",
"summary": "Decode Morse code.",
"category": "easy"
},
{
"id": "117",
"name": "A Pile of Bricks",
"summary": "Close a hole in a wall.",
"category": "moderate"
},
{
"id": "118",
"name": "Seat your team members",
"summary": "Place the employees in a new office.",
"category": "hard"
},
{
"id": "119",
"name": "Chain Inspection",
"summary": "Try to pass a chain.",
"category": "moderate"
},
{
"id": "120",
"name": "Skyscrapers",
"summary": "Outline skyscrapers in a city.",
"category": "hard"
},
{
"id": "121",
"name": "Lost In Translation",
"summary": "Try to become a native speaker.",
"category": "moderate"
},
{
"id": "122",
"name": "Hidden Digits",
"summary": "Try to look behind the scenes.",
"category": "easy"
},
{
"id": "123",
"name": "Efficient Delivery",
"summary": "Load your tankers with oil.",
"category": "hard"
},
{
"id": "124",
"name": "Road Trip",
&quo
802E
t;summary": "Do not be left without petrol.",
"category": "easy"
},
{
"id": "125",
"name": "Predict the Number",
"summary": "Try to go beyond the limits.",
"category": "moderate"
},
{
"id": "126",
"name": "Play with DNA",
"summary": "Write an algorithm that a finds DNA segment in a given DNA string.",
"category": "hard"
},
{
"id": "127",
"name": "Code Plagiarism",
"summary": "Compare source code of two programs.",
"category": "hard"
},
{
"id": "128",
"name": "Compressed Sequence",
"summary": "Write a program that compresses a sequence of numbers.",
"category": "easy"
},
{
"id": "129",
"name": "Routing Problem",
"summary": "Find all the shortest paths for the package between two specified hosts.",
"category": "hard"
},
{
"id": "130",
"name": "Sequence Transformation",
"summary": "Transform a binary sequence into a string.",
"category": "moderate"
},
{
"id": "131",
"name": "Split The Number",
"summary": "Evaluate the number according to the pattern.",
"category": "easy"
},
{
"id": "132",
"name": "The Major Element",
"summary": "Find the major element in a sequence.",
"category": "easy"
},
{
"id": "133",
"name": "City Blocks Flyover",
"summary": "Chart the path of a helicopter from above to discover how many city blocks it flew over.",
"category": "moderate"
},
{
"id": "134",
"name": "A bus network",
"summary": "Try to save more time.",
"category": "hard"
},
{
"id": "135",
"name": "Word chain",
"summary": "Find the longest chain of words.",
"category": "moderate"
},
{
"id": "136",
"name": "Racing Chars",
"summary": "Explore a race track avoiding crashes.",
"category": "easy"
},
{
"id": "137",
"name": "Seek for an Intruder",
"summary": "Find the IP address of an intruder.",
"category": "moderate"
},
{
"id": "138",
"name": "Car Race",
"summary": "Determine the fastest car.",
"category": "moderate"
},
{
"id": "139",
"name": "Working experience",
"summary": "Retrieve an actual value.",
"category": "easy"
},
{
"id": "140",
"name": "Data Recovery",
"summary": "Reconstruct a sentence using hints.",
"category": "easy"
},
{
"id": "141",
"name": "Flight 370",
"summary": "Follow the current search results.",
"category": "hard"
},
{
"id": "142",
"name": "Visit to the Headquarters",
"summary": "Organize the queues.",
"category": "hard"
},
{
"id": "143",
"name": "The Ministry of Truth",
"summary": "Your task is to help the Big Brother.",
"category": "moderate"
},
{
"id": "144",
"name": "Digit statistics",
"summary": "Find statistics in sequence.",
"category": "hard"
},
{
"id": "145",
"name": "Running for president",
"summary": "Build your strategy to win the Presidency of the United States.",
"category": "hard"
},
{
"id": "146",
"name": "Bats Challenge",
"summary": "Count bats on the wire.",
"category": "moderate"
},
{
"id": "147",
"name": "Lettercase Percentage Ratio",
"summary": "Find the percentage ratio.",
"category": "easy"
},
{
"id": "148",
"name": "Color Code Converter",
"summary": "Determine and convert the color code.",
"category": "moderate"
},
{
"id": "149",
"name": "Juggling With Zeros",
"summary": "Convert a zero-based number into integer.",
"category": "easy"
},
{
"id": "150",
"name": "Roman and Arabic",
"summary": "Calculate aromatic numbers.",
"category": "moderate"
},
{
"id": "151",
"name": "Cracking eggs",
"summary": "Determine the number of drops.",
"category": "hard"
},
{
"id": "152",
"name": "Age distribution",
"summary": "Print out where the person is.",
"category": "easy"
},
{
"id": "153",
"name": "Locks",
"summary": "Calculate unlocked doors.",
"category": "moderate"
},
{
"id": "154",
"name": "IP package",
"summary": "Calculate IP checksum.",
"category": "hard"
},
{
"id": "155",
"name": "ASCII Decryption",
"summary": "Decrypt a message.",
"category": "hard"
},
{
"id": "156",
"name": "Roller Coaster",
"summary": "Turn the text into RoLlErCoAsTeR case.",
"category": "easy"
},
{
"id": "157",
"name": "The Labyrinth",
"summary": "Find the shortest way to exit.",
"category": "hard"
},
{
"id": "158",
"name": "Interrupted Bubble Sort",
"summary": "Sort a list of elements. Partially.",
"category": "moderate"
},
{
"id": "159",
"name": "Where is Wi-Fi",
"summary": "Find out in which buildings there are hotspots.",
"category": "hard"
},
{
"id": "160",
"name": "Nice angles",
"summary": "Convert angle values to sexagesimal format.",
"category": "easy"
},
{
"id": "161",
"name": "Game of Life",
"summary": "Implement the classical cellular automaton game.",
"category": "moderate"
},
{
"id": "162",
"name": "Too unique",
"summary": "Find and mark the biggest submatrices of unique elements.",
"category": "hard"
},
{
"id": "163",
"name": "Big Digits",
"summary": "Print out magnified digits using pseudographics.",
"category": "easy"
},
{
"id": "164",
"name": "Mars Networks",
"summary": "Find the minimum length of the optical fiber cable which connects probes to a network.",
"category": "hard"
},
{
"id": "165",
"name": "Suggest Groups",
"summary": "Help your friends to join groups.",
"category": "moderate"
},
{
"id": "166",
"name": "Delta Time",
"summary": "Find the time difference.",
"category": "easy"
},
{
"id": "167",
"name": "Read More",