Problems

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Total results21,380 problems

SHA-256Easy2
ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Best guess in the random gameEasy2
Math, IntervalsNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Base Conversion 2Easy2
Math, ImplementationNo attempts yetTime limit0.5sMemory limit256 MB
Judgeable
Inverse Move-to-Front TransformEasy2
Simulation, ArrayNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Spring 2005: Arriving at USCEasy2
Two pointers, String matchingNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Rocket height at last separationEasy2
Simulation, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Three Kangaroos 2Easy2
Greedy, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Sieve of EratosthenesEasy2
Simulation, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Entrance ExaminationEasy2
Array, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
ICPC CalculatorEasy2
Recursion, Tree +1No attempts yetTime limit1sMemory limit256 MB
Judgeable
Binomial Coefficient 1Easy2
Combinatorics, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Pythagorean ExpectationEasy2
Implementation, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Painting FloorsEasy2
ImplementationNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Pattern Word BankingEasy2
Simulation, StringNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Secret MessageEasy2
Matrix, SimulationNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Kkung's Girlfriend PlanEasy2
Implementation, Hash map +1No attempts yetTime limit1sMemory limit256 MB
Judgeable
The Traveling OrienteererEasy2
Math, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Letter CookiesEasy2
Hash map, StringNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Is It a Number?Easy2
String, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Decode the MessageEasy2
String, Math +1No attempts yetTime limit1sMemory limit256 MB
Judgeable
Negative People in Da HouseEasy2
Prefix sum, SimulationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Counting zerosEasy2
Brute force, MathNo attempts yetTime limit3sMemory limit256 MB
Judgeable
ElectionEasy2
Geometry, Brute force +1No attempts yetTime limit1sMemory limit256 MB
Judgeable
Reverse the Binary DigitsEasy2
Bit manipulation, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Toilet Seat PoliciesEasy2
SimulationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Flag QuizEasy2
Brute force, ArrayNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Black FridayEasy2
Array, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Choosing an Exam SetEasy2
Implementation, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
ITAI VirusEasy2
Graph, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Minions' MasterEasy2
Implementation, MathNo attempts yetTime limit3sMemory limit256 MB
Judgeable
Hangul 2Easy2
Math, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Initial, Medial, FinalEasy2
Math, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Compose a Hangul SyllableEasy2
Implementation, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Margaret's Minute Minute ManipulationEasy2
Implementation, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
PasswordEasy2
String, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Creature Number SystemsEasy2
Math, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
PriceEasy2
Implementation, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
CypherEasy2
String, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
GraphsEasy2
Implementation, SimulationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
SolitaireEasy2
SimulationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Coverity CrosswordEasy2
String matching, Matrix +1No attempts yetTime limit2sMemory limit256 MB
Judgeable
Time Limit CheckEasy2
Math, ImplementationNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Minimum Final Exam ScoreEasy2
MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Eakspay igpay atinlay?Easy2
String, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Crushing ConfectionsEasy2
Matrix, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Orc PopulationEasy2
Implementation, SimulationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
The Big Eye in the SkyEasy2
Math, GeometryNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Your weapon is kind of badEasy2
ImplementationNo attempts yetTime limit1sMemory limit512 MB
Judgeable
DistributionEasy2
Bit manipulation, Math +1No attempts yetTime limit1sMemory limit512 MB
Judgeable
Mr. Gorbachev, Tear Down This Wall!Easy2
Math, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
AmpelmännchenEasy2
Greedy, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Three Origami SquaresEasy2
Geometry, MathNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Black and White PanelEasy2
Implementation, MatrixNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Distribution in MetagoniaEasy2
Simulation, Math +1No attempts yetTime limit2sMemory limit256 MB
Judgeable
Hash Code HackerEasy2
String, ImplementationNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Lucky ChancesEasy2
Brute force, Matrix +1No attempts yetTime limit2sMemory limit256 MB
Judgeable
Mountain BikingEasy2
Math, SimulationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Spin the number wheelEasy2
Brute force, StringNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Hidden PasswordEasy2
Simulation, StringNo attempts yetTime limit1sMemory limit256 MB
Judgeable
D as in DaedalusEasy2
SimulationNo attempts yetTime limit3sMemory limit256 MB
Judgeable
Jump King Choi JunminEasy2
MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Base ConversionEasy2
Math, ImplementationNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Marko's T9 inputEasy2
String, Hash mapNo attempts yetTime limit2sMemory limit64 MB
Judgeable
Magic TrickEasy2
Simulation, Brute forceNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Egg Drop LogEasy2
Intervals, ImplementationNo attempts yetTime limit2sMemory limit256 MB
Judgeable
Stand on ZanzibarEasy2
Math, ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Scaling RecipesEasy2
Implementation, MathNo attempts yetTime limit3sMemory limit256 MB
Judgeable
Cities Alice has visitedEasy2
Hash mapNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Identifying Map TilesEasy2
Bit manipulation, StringNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Dice CupEasy2
Brute force, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Easy ProblemsetEasy2
SimulationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Turn Direction of Three PointsEasy2
GeometryNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Bottled-Up FeelingsEasy2
Brute force, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
A Towering ProblemEasy2
Brute force, SortingNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Lost ExponentsEasy2
Math, ImplementationNo attempts yetTime limit1sMemory limit64 MB
Judgeable
Tiling recordEasy2
Simulation, Matrix +1No attempts yetTime limit1sMemory limit256 MB
Judgeable
Hex Code DecoderEasy2
ImplementationNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Donation PackagingEasy2
Simulation, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
YODAEasy2
String, SimulationNo attempts yetTime limit1sMemory limit64 MB
Judgeable
Octal, Decimal, HexadecimalEasy2
Implementation, MathNo attempts yetTime limit1sMemory limit256 MB
Judgeable
Bear in the TrapEasy2
Brute force, ImplementationNo attempts yetTime limit1sMemory limit64 MB
Judgeable
FloodEasy2
Greedy, ImplementationNo attempts yetTime limit1sMemory limit64 MB
Judgeable
Nothing but BallsEasy2
SimulationNo attempts yetTime limit1sMemory limit64 MB
Judgeable
Belote PointsEasy2
ImplementationNo attempts yetTime limit1sMemory limit64 MB
Judgeable
Number tag exchangeEasy2
Simulation, ImplementationNo attempts yetTime limit2sMemory limit512 MB
Judgeable
Speed ViolationEasy2
Two pointers, SimulationNo attempts yetTime limit2sMemory limit512 MB
Judgeable
Promotion CountingEasy2
MathNo attempts yetTime limit2sMemory limit512 MB
Judgeable
Milk PailsEasy2
Brute forceNo attempts yetTime limit2sMemory limit512 MB
Judgeable
Circular BarnEasy2
Brute force, SimulationNo attempts yetTime limit2sMemory limit512 MB
Judgeable
Dance Around the Clock (Small)Easy2
SimulationNo attempts yetTime limit5sMemory limit512 MB
Judgeable
Lazy Spelling Bee (Large)Easy2
Combinatorics, String +1No attempts yetTime limit5sMemory limit512 MB
Judgeable
gMatrix (Small)Easy2
Brute force, Matrix +1No attempts yetTime limit5sMemory limit512 MB
Judgeable
gWheels (Small)Easy2
Brute force, MathNo attempts yetTime limit5sMemory limit512 MB
Judgeable
Moist (Small1)Easy2
Array, StringNo attempts yetTime limit5sMemory limit512 MB
Judgeable
Moist's Card SortingEasy2
Simulation, SortingNo attempts yetTime limit5sMemory limit512 MB
Judgeable
Hangul Initial ConsonantsEasy2
Math, String +1No attempts yetTime limit1sMemory limit512 MB
Judgeable
BazaEasy2
Brute force, MatrixNo attempts yetTime limit1sMemory limit64 MB
Judgeable
#include <Google I/O.h>Easy2
Implementation, String +1No attempts yetTime limit5sMemory limit512 MB
Judgeable
Dreary Design (Small)Easy2
Brute force, MathNo attempts yetTime limit5sMemory limit512 MB
Judgeable
GBus Count (Small)Easy2
Brute force, IntervalsNo attempts yetTime limit5sMemory limit512 MB
Judgeable

Title	Level	Topics	Solved	Time limit	Memory limit	Judge
SHA-256Print the SHA-256 hash of the given string as 64 lowercase hexadecimal digits.	Easy2	Implementation	No attempts yet	1s	256 MB	Judgeable
Best guess in the random gamePick the number from 1 to N whose interval of radius K covers the most hidden values and report its coverage count.	Easy2	MathIntervals	No attempts yet	1s	256 MB	Judgeable
Base Conversion 2Convert the decimal number N to base B, writing digits above 9 as uppercase letters.	Easy2	MathImplementation	No attempts yet	0.5s	256 MB	Judgeable
Inverse Move-to-Front TransformReconstruct the lowercase string from its move-to-front code by simulating the 26-letter list.	Easy2	SimulationArray	No attempts yet	2s	256 MB	Judgeable
Spring 2005: Arriving at USCFilter the building list to names that hold the abbreviation letters as a case-insensitive subsequence and print the matches in input order.	Easy2	Two pointersString matching	No attempts yet	1s	256 MB	Judgeable
Rocket height at last separationSimulate n rocket stages with the given thrust, mass, and burn time formulas and print the height when the last stage drops.	Easy2	SimulationMath	No attempts yet	1s	256 MB	Judgeable
Three Kangaroos 2Three kangaroos on integer points let an outer one jump between the other two, and each test case asks for the largest possible number of jumps.	Easy2	GreedyMath	No attempts yet	1s	256 MB	Judgeable
Sieve of EratosthenesSimulate the sieve of Eratosthenes as described and print the K-th crossed-out number for each N and K pair.	Easy2	SimulationImplementation	No attempts yet	1s	256 MB	Judgeable
Entrance ExaminationPick the cutoff n between nmin and nmax with a strict score split that maximizes the gap between the lowest passing and highest failing scores.	Easy2	ArrayImplementation	No attempts yet	1s	256 MB	Judgeable
ICPC CalculatorEvaluate a dot-indented prefix expression where + sums its operands and * multiplies them.	Easy2	RecursionTree+1	No attempts yet	1s	256 MB	Judgeable
Binomial Coefficient 1Compute the binomial coefficient N choose K for given N up to 10 and K between 0 and N.	Easy2	CombinatoricsMath	No attempts yet	1s	256 MB	Judgeable
Pythagorean ExpectationAdd up each team's scored and allowed runs from the match records, apply the given formula, and print the largest and smallest values scaled by 1000.	Easy2	ImplementationMath	No attempts yet	1s	256 MB	Judgeable
Painting FloorsPrint the leftmost cell of every horizontal bare run so the prescribed plan covers all bare squares.	Easy2	Implementation	No attempts yet	2s	256 MB	Judgeable
Pattern Word BankingAdd the PIN digits picked by lowercase pattern letters and print non sequitur if the letter values do not match the PIN length.	Easy2	SimulationString	No attempts yet	2s	256 MB	Judgeable
Secret MessagePad each message with asterisks to a square, rotate the square 90 degrees clockwise, then read it row by row without asterisks.	Easy2	MatrixSimulation	No attempts yet	2s	256 MB	Judgeable
Kkung's Girlfriend PlanEach test case gives named condition times and AND-OR combos, and the answer is the smallest combo time where one combo takes its slowest condition.	Easy2	ImplementationHash map+1	No attempts yet	1s	256 MB	Judgeable
The Traveling OrienteererGiven point coordinates and lists of courses, compute each course total Euclidean length rounded to the nearest integer.	Easy2	MathImplementation	No attempts yet	1s	256 MB	Judgeable
Letter CookiesGiven the letters in a box, decide for each query word whether its letters can all be taken from the box.	Easy2	Hash mapString	No attempts yet	1s	256 MB	Judgeable
Is It a Number?Check whether each line holds only digits with optional surrounding spaces and print the number without leading zeros or invalid input.	Easy2	StringImplementation	No attempts yet	1s	256 MB	Judgeable
Decode the MessageThe program decodes each word into one character from its letter values modulo 27.	Easy2	StringMath+1	No attempts yet	1s	256 MB	Judgeable
Negative People in Da HouseGiven each test case's sequence of entries and exits, compute the smallest initial occupancy that keeps the count nonnegative throughout.	Easy2	Prefix sumSimulation	No attempts yet	1s	256 MB	Judgeable
Counting zerosCount how many times the digit 0 appears when writing every integer from N to M.	Easy2	Brute forceMath	No attempts yet	3s	256 MB	Judgeable
ElectionFor each test case, count how many coins overlap each coin and print the top name or TIE on ties.	Easy2	GeometryBrute force+1	No attempts yet	1s	256 MB	Judgeable
Reverse the Binary DigitsRead N, write it in binary without leading zeros, reverse the digits, and print the reversed string as a decimal number.	Easy2	Bit manipulationMath	No attempts yet	1s	256 MB	Judgeable
Toilet Seat PoliciesCount seat moves under leave-up, leave-down, and leave-as-preferred policies given the initial seat position and each person in order.	Easy2	Simulation	No attempts yet	1s	256 MB	Judgeable
Flag QuizPrint the alternatives whose maximum position-wise difference to any other alternative is smallest.	Easy2	Brute forceArray	No attempts yet	1s	256 MB	Judgeable
Black FridayGiven each person's die roll, print the number of the person holding the highest roll that no one else rolled, or none.	Easy2	ArrayImplementation	No attempts yet	1s	256 MB	Judgeable
Choosing an Exam SetYou compare exam sets by random-guess expected score and pick the highest, preferring fewer questions then the smaller number.	Easy2	ImplementationMath	No attempts yet	1s	256 MB	Judgeable
ITAI VirusCount the initially infected cities plus every city directly joined to one by a single road.	Easy2	GraphImplementation	No attempts yet	1s	256 MB	Judgeable
Minions' MasterFor each town, compute the average power and the percentage of residents above it, rounded to three decimals.	Easy2	ImplementationMath	No attempts yet	3s	256 MB	Judgeable
Hangul 2Given one Hangul syllable, compute its one-based index in the ordered list of 11172 syllables.	Easy2	MathImplementation	No attempts yet	1s	256 MB	Judgeable
Initial, Medial, FinalDecompose one Hangul syllable into its initial, medial, and optional final jamo and print each on its own line.	Easy2	MathImplementation	No attempts yet	1s	256 MB	Judgeable
Compose a Hangul SyllableJoin the given choseong, jungseong, and optional jongseong into a single Hangul syllable and print it.	Easy2	ImplementationMath	No attempts yet	1s	256 MB	Judgeable
Margaret's Minute Minute ManipulationDecode two binary-clock matrices into times, add them modulo 24 hours, and print the sum in the same matrix format.	Easy2	ImplementationMath	No attempts yet	1s	256 MB	Judgeable
PasswordCheck whether the two letters typed into the blanked positions of a stored answer match the letters at those positions, ignoring spaces.	Easy2	StringImplementation	No attempts yet	1s	256 MB	Judgeable
Creature Number SystemsConvert each given decimal number up to 5000 into the creature's base between 2 and 20, using letters A to J for digits above 9.	Easy2	MathImplementation	No attempts yet	1s	256 MB	Judgeable
PriceApply the sticker discount and then the optional coupon to each price, round to cents, and apply the extra cash rounding for cash payments.	Easy2	ImplementationMath	No attempts yet	1s	256 MB	Judgeable
CypherDecrypt each message line by shifting its lowercase letters back by the Caesar shift computed from its date.	Easy2	StringMath	No attempts yet	1s	256 MB	Judgeable
GraphsPrint the equation line and an 11-column asterisk grid showing the y axis, the x axis, and the line y = Ax + B for each test case.	Easy2	ImplementationSimulation	No attempts yet	1s	256 MB	Judgeable
SolitaireSimulate token moves on cells 0 to N with a repeating six-roll generator and sum landed values until reaching N.	Easy2	Simulation	No attempts yet	1s	256 MB	Judgeable
Coverity CrosswordDecide whether every listed word appears horizontally, vertically, or diagonally in an 8 by 8 letter grid.	Easy2	String matchingMatrix+1	No attempts yet	2s	256 MB	Judgeable
Time Limit CheckFor each case, evaluate f(N) times T from the named complexity and print TLE when it exceeds 10^8 times L.	Easy2	MathImplementation	No attempts yet	2s	256 MB	Judgeable
Minimum Final Exam ScoreGiven project, paper, and midterm scores, compute the smallest integer final score from 0 to 100 that lifts the weighted grade to 90, or report impossible.	Easy2	Math	No attempts yet	1s	256 MB	Judgeable
Eakspay igpay atinlay?Translate each phrase into Pig Latin by moving each leading consonant cluster to the end with ay, or adding yay after vowel-initial words.	Easy2	StringImplementation	No attempts yet	1s	256 MB	Judgeable
Crushing ConfectionsFind the lexicographically smallest row or column triple of equal candies in each grid and print its positions.	Easy2	MatrixImplementation	No attempts yet	1s	256 MB	Judgeable
Orc PopulationGiven two consecutive yearly populations and c, print the population c years later where each year equals the sum of the two before it.	Easy2	ImplementationSimulation	No attempts yet	1s	256 MB	Judgeable
The Big Eye in the SkyFor each point in the first quadrant, print its angle from the positive x-axis in degrees, rounded to the nearest integer.	Easy2	MathGeometry	No attempts yet	1s	256 MB	Judgeable
Your weapon is kind of badEach fighter swaps to the other weapon bonus stats, recomputes combat power from the given formula, and reports whether it rises, falls, or stays the same.	Easy2	Implementation	No attempts yet	1s	512 MB	Judgeable
DistributionYou split the integers from 0 to 2^N - 1 into 2^K boxes of equal size with equal total popcount by pairing each x with its bitwise complement.	Easy2	Bit manipulationMath+1	No attempts yet	1s	512 MB	Judgeable
Mr. Gorbachev, Tear Down This Wall!Add up the lengths of the axis-aligned wall segments and report the total work hours split across the workers, rounded up.	Easy2	MathImplementation	No attempts yet	1s	256 MB	Judgeable
AmpelmännchenFor each item pick the West or East version that gives the larger population-weighted happiness total.	Easy2	GreedyImplementation	No attempts yet	1s	256 MB	Judgeable
Three Origami SquaresCut three equal axis-aligned squares from an h by w sheet and print the largest possible side length.	Easy2	GeometryMath	No attempts yet	2s	256 MB	Judgeable
Black and White PanelPrint the fixed 101-column black and white grid whose isolated single tiles yield exactly b black areas and w white areas.	Easy2	ImplementationMatrix	No attempts yet	2s	256 MB	Judgeable
Distribution in MetagoniaRepeatedly peel off 2^a times the largest power of 3 fitting the odd part of the remainder until it hits zero, then print the pieces sorted.	Easy2	SimulationMath+1	No attempts yet	2s	256 MB	Judgeable
Hash Code HackerThe program prints k distinct letter strings that share one Java hash code by mapping binary digits to Aa and BB blocks.	Easy2	StringImplementation	No attempts yet	2s	256 MB	Judgeable
Lucky ChancesCount over every grid cell how many of the four directions contain only smaller numbers or reach the edge.	Easy2	Brute forceMatrix+1	No attempts yet	2s	256 MB	Judgeable
Mountain BikingFor each segment top, starting from rest, accumulate slope acceleration to compute the arrival speed at the foot.	Easy2	MathSimulation	No attempts yet	1s	256 MB	Judgeable
Spin the number wheelCount the wheel positions where the M digits read clockwise form a number between X and Y.	Easy2	Brute forceString	No attempts yet	1s	256 MB	Judgeable
Hidden PasswordDecide if scanning the message and skipping letters outside the remaining password set reproduces the password in order.	Easy2	SimulationString	No attempts yet	1s	256 MB	Judgeable
D as in DaedalusGiven each round budget and the cards played, compute the extra points the first player could have won by playing the best card each round.	Easy2	Simulation	No attempts yet	3s	256 MB	Judgeable
Jump King Choi JunminStarting from 0 with jumps of exactly k in either direction, count how many integers from a to b are multiples of k.	Easy2	Math	No attempts yet	1s	256 MB	Judgeable
Base ConversionConvert the given number written in base A into base B and print its digits separated by spaces.	Easy2	MathImplementation	No attempts yet	2s	256 MB	Judgeable
Marko's T9 inputCount how many dictionary words map letter by letter to the given T9 digit string.	Easy2	StringHash map	No attempts yet	2s	64 MB	Judgeable
Magic TrickCount how many starting values from 1 to 100 turn negative or fractional when the given operations are applied in order.	Easy2	SimulationBrute force	No attempts yet	2s	256 MB	Judgeable
Egg Drop LogFrom the logged safe and broken drops, compute the lowest floor that could break and the highest floor that could stay safe.	Easy2	IntervalsImplementation	No attempts yet	2s	256 MB	Judgeable
Stand on ZanzibarThe program adds yearly increases beyond twice the previous count to bound the number of imported turtles.	Easy2	MathImplementation	No attempts yet	1s	256 MB	Judgeable
Scaling RecipesScale each recipe from the main ingredient weight and baker percentages, then print every scaled weight rounded half up to one decimal.	Easy2	ImplementationMath	No attempts yet	3s	256 MB	Judgeable
Cities Alice has visitedCount how many different city names appear in each trip log.	Easy2	Hash map	No attempts yet	1s	256 MB	Judgeable
Identifying Map TilesConvert a map tile quadkey into its zoom level and x and y coordinates.	Easy2	Bit manipulationString	No attempts yet	1s	256 MB	Judgeable
Dice CupFind the most likely sums of an N-sided and an M-sided die, printing every tied sum from lowest to highest.	Easy2	Brute forceMath	No attempts yet	1s	256 MB	Judgeable
Easy ProblemsetSimulate judges proposing problems in turn and keep each proposal whose hardness reaches the running total until k problems are chosen.	Easy2	Simulation	No attempts yet	1s	256 MB	Judgeable
Turn Direction of Three PointsGiven three points in order, print 1, -1, or 0 depending on whether the path turns left, turns right, or runs straight.	Easy2	Geometry	No attempts yet	1s	256 MB	Judgeable
Bottled-Up FeelingsFind counts of two bottle sizes that sum exactly to the shipment volume with the fewest bottles, or report Impossible.	Easy2	Brute forceMath	No attempts yet	1s	256 MB	Judgeable
A Towering ProblemSplit six distinct box heights into two triples matching the two given tower heights and print each triple in decreasing order.	Easy2	Brute forceSorting	No attempts yet	1s	256 MB	Judgeable
Lost ExponentsSplit each integer into a base from all but the last digit and an exponent from the last digit, then print the sum of the powers.	Easy2	MathImplementation	No attempts yet	1s	64 MB	Judgeable
Tiling recordGiven a floor tiled with 1 by n tiles labeled by number, list each tile as h or v in row-major order of its first cell.	Easy2	SimulationMatrix+1	No attempts yet	1s	256 MB	Judgeable
Hex Code DecoderDecode each line of hexadecimal digit pairs into its printable ASCII message.	Easy2	Implementation	No attempts yet	1s	256 MB	Judgeable
Donation PackagingTrack the stock of three relief sets day by day, ship every packable trio once at least 30 are ready, and print the shipped count or NO.	Easy2	SimulationMath	No attempts yet	1s	256 MB	Judgeable
YODACompare two numbers digit by digit from the right and drop the smaller digit at each position, printing YODA for a number left with no digits.	Easy2	StringSimulation	No attempts yet	1s	64 MB	Judgeable
Octal, Decimal, HexadecimalConvert one integer given in octal, decimal, or hexadecimal notation to its decimal value.	Easy2	ImplementationMath	No attempts yet	1s	256 MB	Judgeable
Bear in the TrapFind the smallest and largest integers between L and D whose digits sum to X.	Easy2	Brute forceImplementation	No attempts yet	1s	64 MB	Judgeable
FloodFollow the given greedy procedure to build a permutation histogram with trapped-water capacity X, or print -1 when it fails.	Easy2	GreedyImplementation	No attempts yet	1s	64 MB	Judgeable
Nothing but BallsGiven N pitches of balls, hit batters, and wild pitches, simulate the runners on base and count the runs scored.	Easy2	Simulation	No attempts yet	1s	64 MB	Judgeable
Belote PointsSum the scores of all 4N cards using the value table where J and 9 score more in the dominant suit.	Easy2	Implementation	No attempts yet	1s	64 MB	Judgeable
Number tag exchangeSimulate M bubble passes over the line, swapping neighbors when the front tag has the larger remainder modulo the pass number.	Easy2	SimulationImplementation	No attempts yet	2s	512 MB	Judgeable
Speed ViolationTwo speed profiles split the same 100 km road at different points, and you report the largest amount by which the driven speed exceeds the limit.	Easy2	Two pointersSimulation	No attempts yet	2s	512 MB	Judgeable
Promotion CountingFrom the before and after head counts in the four divisions, recover the number promoted across each of the three boundaries.	Easy2	Math	No attempts yet	2s	512 MB	Judgeable
Milk PailsCombine pours of sizes X and Y without exceeding M to get as close to M as possible.	Easy2	Brute force	No attempts yet	2s	512 MB	Judgeable
Circular BarnChoose the entry room on a circular barn so cows walking clockwise to their assigned rooms cover the smallest total distance.	Easy2	Brute forceSimulation	No attempts yet	2s	512 MB	Judgeable
Dance Around the Clock (Small)Simulate up to 10 rounds of alternating pairwise swaps around a circle of at most 10 dancers and report the two neighbors of dancer K.	Easy2	Simulation	No attempts yet	5s	512 MB	Judgeable
Lazy Spelling Bee (Large)Count distinct words formed by picking each letter from its neighbors in the target word, modulo 1e9+7.	Easy2	CombinatoricsString+1	No attempts yet	5s	512 MB	Judgeable
gMatrix (Small)Build the matrix from the given formula and add the largest entry of every K by K consecutive submatrix.	Easy2	Brute forceMatrix+1	No attempts yet	5s	512 MB	Judgeable
gWheels (Small)Decide if any pedal gear, two distinct extra gears, and tire gear combine to each target ratio P/Q.	Easy2	Brute forceMath	No attempts yet	5s	512 MB	Judgeable
Moist (Small1)For each deck of names, count how many cards the robot moves to sort the deck into lexicographic order.	Easy2	ArrayString	No attempts yet	5s	512 MB	Judgeable
Moist's Card SortingCount the cards a robot moves while it insertion sorts each deck of names into lexicographic order.	Easy2	SimulationSorting	No attempts yet	5s	512 MB	Judgeable
Hangul Initial ConsonantsPrint the initial consonant of each Hangul syllable in the given string in order.	Easy2	MathString+1	No attempts yet	1s	512 MB	Judgeable
BazaCount the database rows that match each query in every column not marked -1.	Easy2	Brute forceMatrix	No attempts yet	1s	64 MB	Judgeable
#include <Google I/O.h>Decode each block of eight I and O letters as one ASCII byte and print the message for every test case.	Easy2	ImplementationString+1	No attempts yet	5s	512 MB	Judgeable
Dreary Design (Small)Count RGB triples with each component in 0 to K whose largest and smallest values differ by at most V.	Easy2	Brute forceMath	No attempts yet	5s	512 MB	Judgeable
GBus Count (Small)Count, for each queried city, how many of the given inclusive ranges cover it.	Easy2	Brute forceIntervals	No attempts yet	5s	512 MB	Judgeable