task stringlengths 0 154k | __index_level_0__ int64 0 39.2k |
|---|---|
Hitastig
Description:
The last $n$ days
Hannes has been recording temperatures. Now it’s time to review
the data and find interesting things. Hannes finds it
interesting to know the highest and lowest temperature. He
starts by looking at the data and tries to figure out the
lowest and highest, but ... | 28,100 |
Hittast
Description:
Álfur and Benedikt are in love and want nothing more than to
spend their time together. Sadly, they don’t live close to each
other. Álfur lives in Helsinki but Benedikt lives in Buenos
Aires. So they can’t meet up whenever they want. They decided
to coordinate where and when to mee... | 28,101 |
Hitting the Targets
Description:
A fundamental operation in computational geometry is
determining whether two objects touch. For example, in a game
that involves shooting, we want to determine if a player’s shot
hits a target. A shot is a two dimensional point, and a target
is a two dimensional enclose... | 28,102 |
Hlaupafmæli
Description:
Little Gunna was born the 29th of February 2020. This day,
29th of February, is a bit special. The reason is that the
month of February usually only has 28 days. Only on special
years, leap years, February has 29 days. This is a bit odd for
Gunna since she can only celebrate he... | 28,103 |
Hljóðstilling
Description:
Sara despises it when the volume is set to a number not
divisible by at least one of her favourite numbers. For example
if her favourite numbers were $2$ and $5$ it’d be fine to set the volume to
$15$, $18$ or $20$ but $11$, $17$ or $21$ would not be okay. To simplify
the lif... | 28,104 |
Hnappasetningaskipti
Description:
A while back Arnar, Bjarki and Unnar competed together in
competitive programming. At the university level, contestants
also compete in three person teams, but each team only gets one
computer. Therefore it is very important to use the time at the
computer well, while ... | 28,105 |
Hoarse Horses
Description:
Farmer Bob’s horses all are hoarse and may have a cold –
even the pony is a little hoarse! Because of that, all the farm
animals need to be individually quarantined. To separate the
animals, Farmer Bob has a set of $n$ fences that cannot be crossed.
Unfortunately, Farmer Alic... | 28,106 |
Hobson's Trains
Description:
Mr. Hobson has retired from running a stable and has
invested in a more modern form of transport, trains. He has
built a rail network with $n$ stations. However, he has retained
his commitment to free the passenger from the burden of too
many choices: from each station, a p... | 28,107 |
Hockey Fans
Description:
Some of the best hockey is when the Notnomde and Yraglac
professional hockey teams play. But it isn’t always a polite
game: the home team boos the other team’s goalie regularly
throughout the game.
You don’t like to boo the other team’s goalie, it is
unsportsmanlike. But you a... | 28,108 |
Hogwarts
Description:
The new semester at Hogwarts has just started, but something
is not quite right – the staircases are not cooperating with
the school administrators! Hogwarts has a single room of
movable staircases connecting the $N$ floors. There are $M$ staircases in total, and no two
staircases... | 28,109 |
Hogwarts
Description:
The Hogwarts School of Witchcraft and Wizardry is the home
of many students during the school year. The school has many
rooms connected by corridors and stairs. Each room has four
exits labelled by the integers $1, 2, 3$ or $4$. Some exits lead to another room,
some of them are bl... | 28,110 |
Hole in One
Description:
Janine recently went to her local game store and bought
“Hole in One”, a new mini-golf game for her computer. As
indicated by the name, the objective of the game is to shoot a
ball into a hole using just one shot. The game also borrows
elements from brick breaker style games: i... | 28,111 |
Holey N-Queens (Batman)
Description:
The $N$-queens problem
is the problem of placing $N$ queens on a $N \times N$ chessboard so that no
queen shares a row, column or a diagonal with any other queen.
Essentially, we are trying to place the queens without any
queen threatening another. For example, the ... | 28,112 |
Holiday Stars
Description:
It is the time for the Holidays, which means it’s time for
the annual Holiday Cookie Throwing contest where cookies are
thrown against a wall. Cookies are really simple polygons that
rotate clockwise while in flight.
Due to many years of advanced research and precise throwing
... | 28,113 |
Holmes
Description:
Sherlock Holmes is a renowned detective. His Scotland Yard
colleagues often provide him with a set of evidence and ask for
his help in solving the mysteries. After many years of
practice, Holmes has gained an enormous amount of experience
and already knows causes for many common eve... | 28,114 |
Homework
Description:
Anthony has two multiple choice assignments to hand in
today. The answer to each assignment is a string, where the
$i^\textrm {th}$ letter
represents the answer to the $i^\textrm {th}$ question.
But instead of handing in two strings, Anthony only hands in
a single string. He clai... | 28,115 |
Homework Help
Description:
Alice was recently given a homework assignment to write a
program that would output the number of inversions in any
subarray of a given permutation. She happily turned it in and
got full marks on her assignment. The next week, their homework
assignment was to find the length ... | 28,116 |
Honey Heist
Description:
0x67 is a scout ant searching for food and discovers a
beehive nearby. As it approaches the honeycomb, 0x67 can sense
an area inside packed with dried honey that can be easily
carried back to the nest and stored for winter. However, it
must burrow through the honeycomb to reach... | 28,117 |
Honeycomb Walk
Description:
Your program has to compute, for a given $n$, the number of different such
larva walks.
## Input
The first line contains an integer giving the number of test
cases to follow. Each case consists of one line containing an
integer $n$, where
$1\leq n\leq 14$.
## Output
For ... | 28,118 |
Honi
Description:
From a pile of suggested tasks, authors of COCI must choose
ones that will appear in the next round.
Difficulty of a task is described with an integer in range
$1$ to $N$. For some tasks, however, it is
not easy to exactly determine their difficulty. The COCI
authors decided that the... | 28,119 |
Honour Thy (Apaxian) Parent
Description:
While breaking ground for the Obama Presidential Center,
which will be located just a few blocks from campus in Jackson
Park, archeologists from the Oriental Institute have made an
astounding discovery: a new set of scrolls from the ancient and
certainly not mad... | 28,120 |
Hopper
Description:
A hopper is a virtual creature that visits Java programs and
explores their arrays. Scientists observed a hopper and came to
the following conclusions:
* a hopper only visits arrays with integer entries,
* a hopper always explores a sequence of array elements
using the following r... | 28,121 |
Hoppers
Description:
You are part of an elite hacking group who has just invented
a new type of malware, called the hoppers. Hoppers can operate
in any high-security computer networks; however, they can only
propagate themselves in a very limited way.
A computer network is a set of hosts $V$ ($|V| = N$) a... | 28,122 |
Hopscotch
Description:
You’re playing hopscotch! You start at the origin and your
goal is to hop to the lattice point $(N, N)$. A hop consists of going from
lattice point $(x_1, y_1)$
to $(x_2, y_2)$, where
$x_1 < x_2$ and
$y_1 < y_2$.
You dislike making small hops though. You’ve decided that
... | 28,123 |
Hopscotch 50
Description:
There’s a new art installation in town, and it inspires
you…to play a childish game. The art installation consists of a
floor with an $n\! \times \!
n$ matrix of square tiles. Each tile holds a single
number from $1$ to
$k$. You want to play
hopscotch on it. You want t... | 28,124 |
Hopscotch 500
Description:
Do you remember the new art installation from NAC 2020?
Well, that artist is at it again, on a grander scale this time,
and the new artwork still inspires you—to play a childish game.
The art installation consists of a floor with a square matrix
of tiles. Each tile holds a si... | 28,125 |
Hornrétt
Description:
## Input
The input contains three integers $a$, $b$, and $c$, the side lengths of the
triangle.
## Output
Print the area of the triangle if it’s possible to make a
right angled triangle with side lengths $a$, $b$ and $c$, otherwise print $-1$.
## Scoring
Group
Points
Constraints
1... | 28,126 |
Horror Film Night
Description:
Emma and Marcos are two friends who love horror films. This
year, and possibly the years hereafter, they want to watch as
many films together as possible. Unfortunately, they do not
exactly have the same taste in films. So, inevitably, every now
and then either Emma or Ma... | 28,127 |
Horror List
Description:
However, it turned out that some people were extremely
disappointed, because they got to see movies like Ghosts of
Mars, which instead caused them to tear out their hair in
despair and horror.
To avoid this problem for the next convention, Ian has come
up with a solution, but ... | 28,128 |
Horse Race
Description:
You are currently in a horse racing competition with your
arch nemesis. Both you and your arch nemesis have $N$ horses. This race has $N$ rounds, where in each round, one
of your horses will race against one of your nemesis’s horses.
All horses only race once.
You possess $N$ horse... | 28,129 |
Horse Race - Hard
Description:
You are currently in horse racing competition with your arch
nemesis. Both you and your arch nemesis have $N$ horses. This race has $N$ rounds, where in each round, one
of your horses will race against one of your nemesis’s horses.
All horses only race once.
You possess $N$ ... | 28,130 |
Horse in Ambush
Description:
When Farmer Oskar doesn’t watch his cows closely enough,
they tend to wander off into the forest to hunt for horse
spies. To catch an enemy agent horse, the cows lure it into a
cow trail and set up fences at the endpoints of the trail,
which are $L$ meters
apart. Two pr... | 28,131 |
Hot Dogs in Manhattan
Description:
The two friends Barack and Mitt have both decided to set up
their own hot dog stand in Manhattan. They wish to find the two
optimal locations for their stands.
First of all, they both want to put their stand at an
intersection, since that gives them maximum exposure. Als... | 28,132 |
Hot Hike
Description:
Given the current forecast of daily maximum temperatures
during your vacation, what are the best days for your trip?
## Input
The first line of input contains an integer $n$ ($3
\le n \le 50$), the length of your vacation in days.
Then follows a line containing $n$ integers $t_1, t_... | 28,133 |
Hot Spot
Description:
Hot Spot is a single player game played on a $4$ by $4$ game board. The purpose of the
game is to move a red robot from its current location on the
board to the top left corner. The game board may also contain
green and blue robots. Each square of the game board can be
occupied by... | 28,134 |
Hot Springs
Description:
Kalle is visiting one of Iceland’s famous hot springs. It
contains $n$ pools of
water, where the $i$th one
has temperature $t_ i$.
Although staying in one of the warmer pools for a long time
sure is relaxing, Kalle is on a very tight schedule and just
wants a quick dip ... | 28,135 |
Hotels
Description:
The beautiful city of Leiden draws more and more tourists
every year. Opposite the famous Hilbert Hotel, located near the
city border, a competing chain is building a hotel in a project
nicknamed Lodgings In A Colossal Skyscraper (LIACS).
As you may know, the Hilbert Hotel has an in... | 28,136 |
Hotfix
Description:
In an earlier contest, contestants had to solve a simple
problem. They were given a string and had to print each unique
substring of it, along with the number of occurrences it had in
the original string. For example AB
would print A 1 B 1 AB 1 and
AAA would print A 3 AA 2 AAA 1... | 28,137 |
Hotter Colder
Description:
The children’s game Hotter Colder is played as
follows. Player A leaves the room while player B hides an
object somewhere in the room. Player A re-enters at position
$(0,0)$ and then visits
various other positions about the room. When player A visits a
new position, playe... | 28,138 |
House Building
Description:
A number of eccentrics from central New York have decided
that they have had enough of modern society, and want to move
from there. Together they have bought a rectangular piece of
land far away, and will now settle there.
The land consists of $N \times
M$ squares, and it i... | 28,139 |
House Deconstruction
Description:
In the land of Circleland, there is a circle that has
equally spaced points around its circumference. The distance
between any two adjacent points is $1$.
There are people and houses on the circle’s points. Each
point contains a person, an empty house, or nothing at all.
... | 28,140 |
House Lawn
Description:
After pushing the lawnmower around the lawn during the
hottest Saturday afternoon in history, you decided that there
must be a better way. And then you saw the ads for the new
robotic lawnmovers. But which one should you buy? They all have
different cutting speeds, cutting times... | 28,141 |
House of Cards
Description:
The house will have a triangular shape. The illustration to
the right shows a house of height $6$, and Figure 1 shows a
schematic figure of a house of height $5$.
For aesthetic reasons, the cards used to build the tower
should feature each of the four suits (clubs, diamonds, he... | 28,142 |
How Big Are the Pockets?
Description:
Professor Polygonovich, an honest citizen of Flatland, likes
to take random walks along integer points in the plane. He
starts from the origin in the morning, facing north. There are
three types of actions he makes:
* ’F’: move forward one unit of length.
* ’L’: turn... | 28,143 |
How Many Digits?
Description:
Often times it is sufficient to know the rough size of a
number, rather than its exact value. For example, a human can
reason about which store to visit to buy milk if one store is
roughly $1$ kilometer
away, and another store is roughly $100$ kilometers away. The exact
... | 28,144 |
How do Spiders Walk on Water?
Description:
Some types of spiders are able to walk on water. But spiders
can have problems when walking near a waterfall.
Water in ponds or calm parts of rivers are suitable for
spiders walking on water. When spiders realize water moves they
jump in the opposite direction. H... | 28,145 |
How many 0's?
Description:
A Benedict monk No. 16 writes down the decimal
representations of all natural numbers between and including
$m$ and $n$, $m
\le n$. How many $0$’s will he write down?
## Input
Input consists of a sequence of lines. Each line contains
two unsigned 32-bit integers $m$ and $n$... | 28,146 |
How many squares?
Description:
While browsing the internet, of course using Internet
Explorer without any adblocker, you have noticed a number of
interesting competitions advertised in the panels on various
webpages. In most of these competitions you need to answer a
simple question, like how many tria... | 28,147 |
How to Paint?
Description:
Being a Pokenom trainer is very stressful. You always need
to take good care of all your Pokenoms and always be prepared
to battle other Pokenom trainers.
To cope with the stressful life, Bash learns to paint in his
free time. Today Bash is working on his masterpiece: ‘The two
... | 28,148 |
Howl
Description:
Returning to the Beautiful Gloomy Outback (BGO) after a
strenuous trip to the city, you hear a faint howl in the
distance. Instantly you realize it is your friend Fenrir
inviting you to a howling contest.
In order to make an impressive howl that wins the contest,
you know that your h... | 28,149 |
Howl's Mewing Castle
Description:
Howl’s moving castle is currently undergoing renovation,
where the walls of the castle are getting sharper and more
defined.
The castle has a state that can be described as a single
number, which starts off at $0$. The castle can undergo
$N$ different processes,
w... | 28,150 |
Hraðgreining
Description:
Most Icelanders have found it hard to miss how many COVID
tests have been performed in their country to figure out
whether people have Covid or not. At designated testing
locations, samples are taken from both the nose and mouth. They
are then put into a DNA sequencer which re... | 28,151 |
Hraðskrif
Description:
Bjarki has prepared a dictionary on his computer that
contains all the words that may appear. For example, it takes
$26$ key presses to type
ANNA OG AMMA ETA MAT SAMAN. If he
uses the dictionary and types AN! O! AM!
E! M! S!, where ! denotes that
Bjarki presses the TAB ke... | 28,152 |
Hringvegurinn
Description:
## Input
The first line of the input contains two integers, the
number of sections $N$ and
the number of queries $q$
($1 \leq N \leq 10^6$,
$1 \leq q \leq 10^4$).
Next there are $q$ lines,
each with one query. Each query is a single line and starts
with the numbe... | 28,153 |
Hrpa
Description:
Mirko and Slavko’s favourite pastime is competing against
each other in mathematical games. This time they took a heap of
$N$ pebbles and settled on
the following rules:
* Mirko is the first to play, then Slavko, then Mirko
again, then Slavko and so on;
* Mirko can take any numb... | 28,154 |
Hubtown
Description:
Hubtown is a large Nordic city which is home to $n$ citizens. Every morning, each of
its citizens wants to travel to the central hub from which the
city gets its name, by using one of the $m$ commuter trains which pass through
the city. Each train line is a ray (i.e., a line segment wh... | 28,155 |
Huge Campus
Description:
Gregory Brandon Sr. works at some startup in Redmond that
owns a huge campus with a lot of office buildings. Since
Gregory likes to work in different environments, he will work
in exactly two buildings every day. On the $i$-th day, Gregory walks from his
home to building $a_ i$... | 28,156 |
Human Cannonball Run
Description:
You are a world-famous circus performer, a human cannonball.
This means that you climb into a big, fake cannon and launch
yourself great distances to delight young and old alike. Today,
you’re not alone. You are at the international human cannonball
conference and expo... | 28,157 |
Human Observation
Description:
It is known by all that the *creepy* Lord Pooty
loves observing people for “research” purposes. Today,
he is in a mall and would like to stare at people like usual.
The mall is modelled as a grid and there are $N$ people, standing at locations
$(x_ i, y_ i)$ that
Lord... | 28,158 |
Hungarian Services
Description:
You have been hired by Hungarian Services to match a list of
$m$ problem proposals to a
list of $n$ problem topics
for a contest, where $m \geq
n$. The problem proposals have an index of $1, 2, \ldots , m$, while the topics
have an index of $1, 2, \ldots
n$.
Not... | 28,159 |
Hunt the Wumpus
Description:
Hunt the Wumpus is a game you play against the computer on a
$10 \times 10$ grid. At
the beginning of the game, four wumpuses are randomly placed on
the grid (with no two sharing a location). You need to find and
capture all four wumpuses. You guess a square by entering the... | 28,160 |
Hunter x Communication
Description:
Having passed the Hunter Exam, Gon is now officially a
Hunter! Gon is now saying goodbye to his best friend, Killua,
as Gon wants to visit his home in ‘While Island’.
Gon and Killua plan to use the online chat application,
Olaz, to keep in touch. However, they are not c... | 28,161 |
Hunting Pirates
Description:
The Atlantic Ocean has become extremely unsafe because of a
recent increase in pirate activity (the Jolly Roger kind, not
the free-digital-content kind). As a result, the Atlantic
Counter-Piracy Collective (ACPC) is offering a substantial
bounty for information about the tr... | 28,162 |
Hurricane Danger!
Description:
Hurricanes can cause a lot of destruction when they pass
over land. Given the path that a hurricane takes and the
locations of a number of cities, find which city is in the most
danger of damage. That is, the city that is closest to the path
the hurricane takes. Assume th... | 28,163 |
Hvert Skal Mæta?
Description:
The Icelandic Collegiate Programming Contest is upon us and
all the contestants are registered. This leaves only one
question: “Where to attend?”
The simplest option for a contestant is to travel the least
amount of distance to reach a contest site. Only two
municipalitie... | 28,164 |
Hyacinth
Description:
Your bosses at NWERC want you to figure out a procedure for
assigning frequencies to the NICs such that the number of
frequencies in use is maximized, subject to the constraint that
all pairs of adjacent nodes must be able to communicate. A
frequency is considered used if any pair... | 28,165 |
Hydra's Heads
Description:
Princess Perly has been kidnapped by the magical Hydra! The
kingdom is in chaos. Now only PyPy — the bravest Knight of the
country — can save the day!
Hydra is a powerful magical creature with $H$ heads and $T$ tails. Hydra can breathe fire from
each of its heads, and can shoot ... | 28,166 |
Háhýsi
Description:
## Input
The first and only line of the input is the length and width
of the site, $n$ and
$m$, separated by a space.
It is guaranteed that $1 \leq n,
m \leq 10^{18}$.
## Output
Print the number of possible locations for the skyscraper.
Since the answer could be very large yo... | 28,167 |
Hårgalåten
Description:
Hårgalåten is a Swedish folk song that tells the story of
how the devil makes a group of youths dance until they die. Tom
likes Hårgalåten and has therefore written an arrangement for
his orchestra to play. To fit with the theme of the lyrics, Tom
has composed the arrangement in... | 28,168 |
Hópavinna
Description:
In the next iteration of ÁFLV, the course will make use of
group assignments to evaluate students’ knowledge. As a
student, you are seeking to minimize the amount of time spent
on doing the assignments while still getting your desired
grade. This will allow you to spend more time... | 28,169 |
Höfundaleit
Description:
Hallgerður Stuttbrók is stood in the library in
Reyðarfjörður. She is looking for something fun to read, but
cannot find the book she has in mind. This is because she does
not remember the name of the author, and at this library the
books are ordered by the names of the authors... | 28,170 |
Höskuldarháska
Description:
FKHÍ’s continuous integration system performs many tasks.
Ensures input data is formatted correctly, looks for typos in
problem statements and more. After having made a reference to a
popular movie in the last contest and spoiled an important plot
point for those who had not... | 28,171 |
I Can Guess the Data Structure!
Description:
There is a bag-like data structure, supporting two
operations:
$1\ x$: Throw an
element $x$ into the
bag.
$2$: Take out an
element from the bag.
Given a sequence of operations with return values, you’re
going to guess the data structure. It is a stack... | 28,172 |
I Could Have Won
Description:
“We will be closing in about 5 minutes. Thank you for
visiting the ICPC gym today.”
With this announcement, Alice and Bob stopped playing their
rock-paper-scissors marathon in the middle of the $10$th game. Each player scores a
point if their throw beats the other player’s th... | 28,173 |
I Hate The Number Nine
Description:
How many positive $d$
digit numbers exist that do not contain a nine?
## Input
The first line of the input consists of a single integer,
$T$, the number of test
cases.
Each of the following $T$
cases consists of a single integer $d$, the number of digits.
* $1... | 28,174 |
I Repeat Myself I Repeat Myself I Repeat
Description:
The Perl programming language has a lot of convenient little
operators. For example, it has an infix operator, x, for creating repeated copies of a string.
When used in an expression like $p$ x
$n$, the operator
x produces a string containing
$n$ re... | 28,175 |
I Wanna Be The Very Best
Description:
In order to become the very best Pokenom trainer, Bash needs
to prepare a team of Pokenom to participate in the Pokenom
world championship.
Bash has $N$ Pokenoms.
Each Pokenom has $3$
stats: Attack, Defense and Health. Bash wants to select
$K$ Pokenoms with hi... | 28,176 |
I'm Thinking of a Number
Description:
Let’s play a guessing game. I’m thinking of a positive
integer that’s greater than five and less than eleven and
divisible by three. Of course, I could be thinking of either
six or nine. Your job is to supply a program that can play
guessing games like this. Given ... | 28,177 |
I've Been Everywhere, Man
Description:
Someone recently asked her “how many different cities have
you visited for work?” Thankfully Alice has kept a log of her
trips. Help Alice figure out the number of cities she has
visited at least once.
## Input
The first line of input contains a single positive inte... | 28,178 |
ICPC Awards
Description:
The ACM International Collegiate Programming Contest has
been held in Vietnam for more than $10$ years. The contest is a great
chance for the students to meet new friends, broaden their
knowledge and of course, win prizes.
Every years, universities can send one or multiple teams t... | 28,179 |
ICPC Camp
Description:
John is a leading organizer of this year’s North America
ICPC training camp. The camp lasts several days. On each day,
there will be a lecture introducing two problems: one classical
problem and one creative problem. Each problem can only be
introduced once during the entire camp... | 28,180 |
ICPC Record Matching
Description:
When using “software-as-a-service” offerings, a user often
has a problem of matching records stored by the different
services and determining if they refer to the same entity
(person, account, order, etc.) The ICPC is no exception. While
each participant has a record i... | 28,181 |
ICPC Team Generation
Description:
Vi is a coach for her university’s ICPC organization and is
working on creating teams for their upcoming regional contest.
They recently competed in the North America Qualifier and Vi is
using the results as well as each person’s preferences to
create as many teams of ... | 28,182 |
ICPC Team Selection
Description:
The coach of Nha Trang University, Mr. Van, has just
organized a contest to form its ICPC teams. There were students
participating in the contest. The $i^\textrm {th}$ student scored
$P_ i$ in the contest.
The coach wants to form $N$ different teams (each team has
$3$ ... | 28,183 |
ICPC Tutorial
Description:
ACM-ICPC returns to Singapore in 2015 after a long absence.
There may be new contestants from this region who are joining
ACM-ICPC for the very first time1. This problem
serves as a tutorial for such contestants.
First, let establish the fact that the problems posed in
ICPC ... | 28,184 |
IMO Harder Problem
Description:
After passing the final round of the Hunter Exam, Gon is now
a Hunter! But before continuing his exciting journey, Gon
decides to visit his home in ‘While Island’.
Aunt Mito is happy that Gon has become a Hunter and has
visited home. But at the same time, she feels worried ... | 28,185 |
IOU
Description:
You are developing a new app intended to simplify
expense-sharing among groups of friends. This app will allow
them to keep track of who encountered an expense and how it
should be shared with others through the form of IOUs. For
instance, if Alice pays for a meal shared with Bob and C... | 28,186 |
IP over Avian Carriers
Description:
When you live out in the Finnish woods, far away from all
the cities, Internet connectivity has a wildly varying quality.
This has clear disadvantages when doing competitive
programming, especially since most competitions take place
online.
To improve reliability of... | 28,187 |
IPAM
Description:
Indriði and Eggert are DNS experts. They wrote a piece of
software that supports management of Domain Name Servers. It
can even manage reverse pointer records.
Now they want to design software for IP Address Management.
Networks make use of IP addresses. The network administrators
th... | 28,188 |
IQ Test
Description:
In many IQ tests, the following type of questions is often
given:
For example, if you are given the sequence $1, 1, 2, 3, 5, 8, 13, 21$ you may
recognize this as the Fibonacci numbers and write down
$34$ as the next term.
There is no “correct answer” because the next term can be
... | 28,189 |
ISBN Conversion
Description:
An ISBN (International Standard Book Number) is a unique
identifier assigned to a distinct edition/version of a
published book (for example, hardcover and paperback versions
of the same edition get different ISBNs). ISBNs assigned before
2007 were $10$ digits long
(the ... | 28,190 |
ISP Merger
Description:
A number of regional Internet Service Providers (ISPs), both
big and small have recently been forced into a merger by the
government, in an effort to improve service for all. Of course
this has been decided without consulting you, the chief network
infrastructure officer, and a ... | 28,191 |
IXth Problem
Description:
Emily recently learned about the Roman Empire and its
civilization at school. One aspect that was especially
fascinating to her is the number system that they used, the
Roman numerals. The Roman number system uses seven
distinct digits, each representing a different value and
... | 28,192 |
Ice Cream
Description:
Ice cream is a difficult topic. You are at the ice cream
store and have some trouble deciding how you want your ice
cream. How many scoops? What flavours? In what order? The only
way to ensure that you are making the right decisions is to
approach the problem systematically.
The... | 28,193 |
Ice Cream
Description:
The Better Get Obese (BGO) ice cream factory is gearing up
for the holiday season, and after several years with mediocre
sales, they have decided to focus only on their most popular
product, ice cream with flavour of chocolate and vanilla.
In order to make a perfect such ice cream, ... | 28,194 |
Ice Cream Machines
Description:
Arnar, being a true Icelander, loves ice cream and today is
just the perfect weather to go grab some of this delicious
treat. He heads out into the blizzard to his favourite ice
cream store. When he arrives he is surprised to see an
unusually short queue ahead of him; he... | 28,195 |
Ice Floe Jumping
Description:
Two polar bears (of opposite genders) were floating around
on ice floes (“isflak” in Swedish, “ľadová kryha” in Slovak)
somewhere outside the northern parts of Greenland, and had
finally decided to meet. After only a couple of minutes, and a
few jumps between ice floes, th... | 28,196 |
Icons in the Toolbar
Description:
Gunnar is not satisfied with the graphic tools currently
available for LaTeX,
so he’s working on his own graphics editor. For every editor
function he has also created an icon which is a square image.
These icons will be placed in a toolbar with two rows and
$N$ co... | 28,197 |
Icy Itinerary
Description:
It is a harsh and cold winter, in a town consisting of
$n$ houses. Everybody is
asleep in the early morning hours. The snow lies deep on the
ground, except on the $m$
roads that connect some pairs of houses. Only Thomas is
awake.
Thomas the mailman needs to deliver mail ... | 28,198 |
Ideas
Description:
A unique feature of ideas is that they are not consumed when
used. A good idea can benefit arbitrarily many people without
diminishing the value of the idea. An idea can even serve as
the basis for creative people to derive even better ideas. Each
person relies on a specific set of i... | 28,199 |
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