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Solve the programming task below in a Python markdown code block.
New Year is coming and you are excited to know how many minutes remain before the New Year. You know that currently the clock shows h hours and m minutes, where 0 ≤ hh < 24 and 0 ≤ mm < 60. We use 24-hour time format!
Your task is to find the number of... |
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Uh oh! Applications to tech companies are due soon, and you've been procrastinating by doing contests instead! (Let's pretend for now that it is actually possible to get a job in these uncertain times.)
You have completed many programming projects. In ... |
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The store sells n beads. The color of each bead is described by a lowercase letter of the English alphabet ("a"–"z"). You want to buy some beads to assemble a necklace from them.
A necklace is a set of beads connected in a circle.
For example, if the ... |
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We have a secret array. You don't know this array and you have to restore it. However, you know some facts about this array:
* The array consists of n distinct positive (greater than 0) integers.
* The array contains two elements x and y (these el... |
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Gildong has a square board consisting of n rows and n columns of square cells, each consisting of a single digit (from 0 to 9). The cell at the j-th column of the i-th row can be represented as (i, j), and the length of the side of each cell is 1. Gildo... |
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n distinct integers x_1,x_2,…,x_n are written on the board. Nezzar can perform the following operation multiple times.
* Select two integers x,y (not necessarily distinct) on the board, and write down 2x-y. Note that you don't remove selected numbers... |
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There is a grid with n rows and m columns. Every cell of the grid should be colored either blue or yellow.
A coloring of the grid is called stupid if every row has exactly one segment of blue cells and every column has exactly one segment of yellow cel... |
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The weight of a sequence is defined as the number of unordered pairs of indexes (i,j) (here i < j) with same value (a_{i} = a_{j}). For example, the weight of sequence a = [1, 1, 2, 2, 1] is 4. The set of unordered pairs of indexes with same value are (... |
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Polycarpus has n markers and m marker caps. Each marker is described by two numbers: xi is the color and yi is the diameter. Correspondingly, each cap is described by two numbers: aj is the color and bj is the diameter. Cap (aj, bj) can close marker (xi... |
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The Smart Beaver from ABBYY loves puzzles. One of his favorite puzzles is the magic square. He has recently had an idea to automate the solution of this puzzle. The Beaver decided to offer this challenge to the ABBYY Cup contestants.
The magic square i... |
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Formula One championship consists of series of races called Grand Prix. After every race drivers receive points according to their final position. Only the top 10 drivers receive points in the following order 25, 18, 15, 12, 10, 8, 6, 4, 2, 1. At the co... |
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As a tradition, every year before IOI all the members of Natalia Fan Club are invited to Malek Dance Club to have a fun night together. Malek Dance Club has 2n members and coincidentally Natalia Fan Club also has 2n members. Each member of MDC is assign... |
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You will receive 3 points for solving this problem.
Manao is designing the genetic code for a new type of algae to efficiently produce fuel. Specifically, Manao is focusing on a stretch of DNA that encodes one protein. The stretch of DNA is represented... |
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One of the most important products of the R1 company is a popular @r1.com mail service. The R1 mailboxes receive and send millions of emails every day.
Today, the online news thundered with terrible information. The R1 database crashed and almost no da... |
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Vasya decided to write an anonymous letter cutting the letters out of a newspaper heading. He knows heading s1 and text s2 that he wants to send. Vasya can use every single heading letter no more than once. Vasya doesn't have to cut the spaces out of th... |
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Let's denote as <image> the number of bits set ('1' bits) in the binary representation of the non-negative integer x.
You are given multiple queries consisting of pairs of integers l and r. For each query, find the x, such that l ≤ x ≤ r, and <image> i... |
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Vasya had a strictly increasing sequence of positive integers a1, ..., an. Vasya used it to build a new sequence b1, ..., bn, where bi is the sum of digits of ai's decimal representation. Then sequence ai got lost and all that remained is sequence bi.
... |
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Amr bought a new video game "Guess Your Way Out! II". The goal of the game is to find an exit from the maze that looks like a perfect binary tree of height h. The player is initially standing at the root of the tree and the exit from the tree is located... |
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Kolya loves putting gnomes at the circle table and giving them coins, and Tanya loves studying triplets of gnomes, sitting in the vertexes of an equilateral triangle.
More formally, there are 3n gnomes sitting in a circle. Each gnome can have from 1 to... |
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The Cybernetics Failures (CF) organisation made a prototype of a bomb technician robot. To find the possible problems it was decided to carry out a series of tests. At the beginning of each test the robot prototype will be placed in cell (x0, y0) of a r... |
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Johny likes numbers n and k very much. Now Johny wants to find the smallest integer x greater than n, so it is divisible by the number k.
Input
The only line contains two integers n and k (1 ≤ n, k ≤ 109).
Output
Print the smallest integer x > n, so... |
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On vacations n pupils decided to go on excursion and gather all together. They need to overcome the path with the length l meters. Each of the pupils will go with the speed equal to v1. To get to the excursion quickly, it was decided to rent a bus, whic... |
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You are given an array consisting of n non-negative integers a1, a2, ..., an.
You are going to destroy integers in the array one by one. Thus, you are given the permutation of integers from 1 to n defining the order elements of the array are destroyed.... |
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Hongcow is ruler of the world. As ruler of the world, he wants to make it easier for people to travel by road within their own countries.
The world can be modeled as an undirected graph with n nodes and m edges. k of the nodes are home to the governmen... |
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Bear Limak examines a social network. Its main functionality is that two members can become friends (then they can talk with each other and share funny pictures).
There are n members, numbered 1 through n. m pairs of members are friends. Of course, a m... |
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Consider the function p(x), where x is an array of m integers, which returns an array y consisting of m + 1 integers such that yi is equal to the sum of first i elements of array x (0 ≤ i ≤ m).
You have an infinite sequence of arrays A0, A1, A2..., whe... |
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In a building where Polycarp lives there are equal number of flats on each floor. Unfortunately, Polycarp don't remember how many flats are on each floor, but he remembers that the flats are numbered from 1 from lower to upper floors. That is, the first... |
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Valentin participates in a show called "Shockers". The rules are quite easy: jury selects one letter which Valentin doesn't know. He should make a small speech, but every time he pronounces a word that contains the selected letter, he receives an electr... |
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There is a rectangular grid of n rows of m initially-white cells each.
Arkady performed a certain number (possibly zero) of operations on it. In the i-th operation, a non-empty subset of rows Ri and a non-empty subset of columns Ci are chosen. For each... |
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In the Bus of Characters there are n rows of seat, each having 2 seats. The width of both seats in the i-th row is w_i centimeters. All integers w_i are distinct.
Initially the bus is empty. On each of 2n stops one passenger enters the bus. There are t... |
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Rahul and Rashi are bored with playing the game of Nim, particularly after Rahul gained a thorough understanding of game theory, and would always win.
Now, they are going to play on a variation.
There are only 2 piles of coins. Each player can make th... |
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Let us define F(N,K) be number of subsets of K distinct elements of S where N is the size of S. Given a P( ≤ N), let Sum = F(N,0) + F(N,1) + ... + F(N,P).
You have to print Sum modulo 1000000007.
Input:
First line contains, T, the number of testcase... |
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N coders decided to go for a trip for the upcoming weekend. They chose Crater Lake National Park in Oregon, USA as their destination, because they all like to take a lot of photos and the beautiful nature gives them a chance to do so.
In order to captu... |
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Today Oz is playing with his game-board. He has N coins of type-1 and M coins of type-2. Also the game-board has N squares of type-1 and M squares of type-2. In this game Oz must place one coin into each square. After placing all coins Oz will get a sco... |
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It's the rainy season again, and the city experiences frequent showers throughout the day.
The weather report says that there is a P probability of rainfalls today. Raj has to step out for a meeting at the office, and would like to know the probability... |
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Find the minimum prime number greater than or equal to X.
Constraints
* 2 \le X \le 10^5
* All values in input are integers.
Input
Input is given from Standard Input in the following format:
X
Output
Print the minimum prime number greater than ... |
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We have a sequence of N integers: A_1, A_2, \cdots, A_N.
You can perform the following operation between 0 and K times (inclusive):
* Choose two integers i and j such that i \neq j, each between 1 and N (inclusive). Add 1 to A_i and -1 to A_j, possibl... |
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You are given a simple connected undirected graph consisting of N vertices and M edges. The vertices are numbered 1 to N, and the edges are numbered 1 to M.
Edge i connects Vertex a_i and b_i bidirectionally.
Determine if three circuits (see Notes) ca... |
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We have N gemstones labeled 1 through N.
You can perform the following operation any number of times (possibly zero).
* Select a positive integer x, and smash all the gems labeled with multiples of x.
Then, for each i, if the gem labeled i remains ... |
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Nukes has an integer that can be represented as the bitwise OR of one or more integers between A and B (inclusive). How many possible candidates of the value of Nukes's integer there are?
Constraints
* 1 ≤ A ≤ B < 2^{60}
* A and B are integers.
Input... |
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There are N boxes arranged in a row. Initially, the i-th box from the left contains a_i candies.
Snuke can perform the following operation any number of times:
* Choose a box containing at least one candy, and eat one of the candies in the chosen box.... |
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Hiroshi:? D-C'KOPUA
Peter: What's wrong, Dr. David? I'm used to shouting something I don't understand, but I'm not even writing it today.
Hiroshi: Here.
<image>
Peter: What? This table ... oh, there was something like this in the qualifying questio... |
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Better things, cheaper. There is a fierce battle at the time sale held in some supermarkets today. "LL-do" here in Aizu is one such supermarket, and we are holding a slightly unusual time sale to compete with other chain stores. In a general time sale, ... |
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There are n cups of different sizes and three trays (bon festivals) A, B, and C, and these cups are placed on top of each of the three trays in a pile. However, in any tray, the smallest cup in the tray is on the bottom, the second smallest cup is on to... |
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Background
Mr. A and Mr. B are enthusiastic about the game "Changing Grids". This game is for two players, with player 1 forming the stage and player 2 challenging the stage and aiming for the goal.
Now, A and B have played this game several times, bu... |
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Edward Leven loves multiples of eleven very much. When he sees a number, he always tries to find consecutive subsequences (or substrings) forming multiples of eleven. He calls such subsequences as 11-sequences. For example, he can find an 11-sequence 78... |
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Example
Input
2 2 2 0 0 0 5
Output
1 3 3 1 0
The input will be give
Read the inputs from stdin solve the problem and write the answer to stdout (do not directly test on the sample inputs). Enclose your code within ```python delimiters. |
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A: Alphabet block
Wakana Nakawa loves palindromes. Because my name is also a palindrome.
Wakana got a set with some alphabet blocks. An alphabet block is a block in which one lowercase alphabet is written for each block, and you can create your favori... |
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C: Skewering
problem
One day, when Homura was playing with blocks, Tempura came. Homura decided to play with blocks with Tempura.
There is a rectangular parallelepiped of A \ times B \ times C, which is made by stacking A \ times B \ times C blocks o... |
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Write a program which manipulates a sequence A = {a0, a1, . . . , an−1} with the following operations:
* update(s, t, x): change as, as+1, ..., at to x.
* find(s, t): report the minimum element in as, as+1, ..., at.
Note that the initial values of a... |
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Your friend is developing a computer game. He has already decided how the game world should look like — it should consist of n locations connected by m two-way passages. The passages are designed in such a way that it should be possible to get from any ... |
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Vasya is choosing a laptop. The shop has n laptops to all tastes.
Vasya is interested in the following properties: processor speed, ram and hdd. Vasya is a programmer and not a gamer which is why he is not interested in all other properties.
If all th... |
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Alice and Bob are decorating a Christmas Tree.
Alice wants only 3 types of ornaments to be used on the Christmas Tree: yellow, blue and red. They have y yellow ornaments, b blue ornaments and r red ornaments.
In Bob's opinion, a Christmas Tree will b... |
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Petya loves lucky numbers. We all know that lucky numbers are the positive integers whose decimal representations contain only the lucky digits 4 and 7. For example, numbers 47, 744, 4 are lucky and 5, 17, 467 are not.
Petya and his friend Vasya play a... |
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Petya got interested in grammar on his third year in school. He invented his own language called Petya's. Petya wanted to create a maximally simple language that would be enough to chat with friends, that's why all the language's grammar can be describe... |
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There is a square grid of size n × n. Some cells are colored in black, all others are colored in white. In one operation you can select some rectangle and color all its cells in white. It costs min(h, w) to color a rectangle of size h × w. You are to ma... |
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Monocarp and Bicarp live in Berland, where every bus ticket consists of n digits (n is an even number). During the evening walk Monocarp and Bicarp found a ticket where some of the digits have been erased. The number of digits that have been erased is e... |
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Assume that you have k one-dimensional segments s_1, s_2, ... s_k (each segment is denoted by two integers — its endpoints). Then you can build the following graph on these segments. The graph consists of k vertexes, and there is an edge between the i-t... |
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You are the gym teacher in the school.
There are n students in the row. And there are two rivalling students among them. The first one is in position a, the second in position b. Positions are numbered from 1 to n from left to right.
Since they are ri... |
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You are an all-powerful being and you have created a rectangular world. In fact, your world is so bland that it could be represented by a r × c grid. Each cell on the grid represents a country. Each country has a dominant religion. There are only two re... |
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Guy-Manuel and Thomas have an array a of n integers [a_1, a_2, ..., a_n]. In one step they can add 1 to any element of the array. Formally, in one step they can choose any integer index i (1 ≤ i ≤ n) and do a_i := a_i + 1.
If either the sum or the prod... |
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You are given an array a consisting of n integers.
Your task is to determine if a has some subsequence of length at least 3 that is a palindrome.
Recall that an array b is called a subsequence of the array a if b can be obtained by removing some (poss... |
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Recently Vova found n candy wrappers. He remembers that he bought x candies during the first day, 2x candies during the second day, 4x candies during the third day, ..., 2^{k-1} x candies during the k-th day. But there is an issue: Vova remembers neithe... |
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Ashish has n elements arranged in a line.
These elements are represented by two integers a_i — the value of the element and b_i — the type of the element (there are only two possible types: 0 and 1). He wants to sort the elements in non-decreasing val... |
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To help those contestants who struggle a lot in contests, the headquarters of Codeforces are planning to introduce Division 5. In this new division, the tags of all problems will be announced prior to the round to help the contestants.
The contest cons... |
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During cleaning the coast, Alice found n piles of stones. The i-th pile has a_i stones.
Piles i and i + 1 are neighbouring for all 1 ≤ i ≤ n - 1. If pile i becomes empty, piles i - 1 and i + 1 doesn't become neighbouring.
Alice is too lazy to remove t... |
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A boy Bob likes to draw. Not long ago he bought a rectangular graph (checked) sheet with n rows and m columns. Bob shaded some of the squares on the sheet. Having seen his masterpiece, he decided to share it with his elder brother, who lives in Flatland... |
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The Smart Beaver from ABBYY plans a space travel on an ultramodern spaceship. During the voyage he plans to visit n planets. For planet i ai is the maximum number of suitcases that an alien tourist is allowed to bring to the planet, and bi is the number... |
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The Free Meteor Association (FMA) has got a problem: as meteors are moving, the Universal Cosmic Descriptive Humorous Program (UCDHP) needs to add a special module that would analyze this movement.
UCDHP stores some secret information about meteors as... |
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It seems like the year of 2013 came only yesterday. Do you know a curious fact? The year of 2013 is the first year after the old 1987 with only distinct digits.
Now you are suggested to solve the following problem: given a year number, find the minimum... |
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Being a nonconformist, Volodya is displeased with the current state of things, particularly with the order of natural numbers (natural number is positive integer number). He is determined to rearrange them. But there are too many natural numbers, so Vol... |
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<image>
Input
The input contains a single floating-point number x with exactly 6 decimal places (0 < x < 5).
Output
Output two integers separated by a single space. Each integer should be between 1 and 10, inclusive. If several solutions exist, outp... |
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ATMs of a well-known bank of a small country are arranged so that they can not give any amount of money requested by the user. Due to the limited size of the bill dispenser (the device that is directly giving money from an ATM) and some peculiarities of... |
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One day Vasya the Hipster decided to count how many socks he had. It turned out that he had a red socks and b blue socks.
According to the latest fashion, hipsters should wear the socks of different colors: a red one on the left foot, a blue one on the... |
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People do many crazy things to stand out in a crowd. Some of them dance, some learn by heart rules of Russian language, some try to become an outstanding competitive programmers, while others collect funny math objects.
Alis is among these collectors. ... |
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A progress bar is an element of graphical interface that displays the progress of a process for this very moment before it is completed. Let's take a look at the following form of such a bar.
A bar is represented as n squares, located in line. To add c... |
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Each New Year Timofey and his friends cut down a tree of n vertices and bring it home. After that they paint all the n its vertices, so that the i-th vertex gets color ci.
Now it's time for Timofey birthday, and his mother asked him to remove the tree.... |
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Helen works in Metropolis airport. She is responsible for creating a departure schedule. There are n flights that must depart today, the i-th of them is planned to depart at the i-th minute of the day.
Metropolis airport is the main transport hub of Me... |
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It seems that Borya is seriously sick. He is going visit n doctors to find out the exact diagnosis. Each of the doctors needs the information about all previous visits, so Borya has to visit them in the prescribed order (i.e. Borya should first visit do... |
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Sasha is taking part in a programming competition. In one of the problems she should check if some rooted trees are isomorphic or not. She has never seen this problem before, but, being an experienced participant, she guessed that she should match trees... |
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In this problem you will write a simple code generator for a 2D programming language derived from [Brainfuck](https://en.wikipedia.org/wiki/Brainfuck).
The code in this language is a rectangular grid of characters '.' and 'X'. The code is converted to ... |
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View Russian Translation
One day Benny decides to miss lessons. But as she is a very good pig she will do her homework anyway. She doesn't know anything about the content of this lessons. Your task is to help her.
The problem is following: you are giv... |
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After solving Reese's first problem Harold thought he had proven himself. But Reese wasn't convinced so he gave Harold another query. He told Harold to find the nth term of the sequence given by the equation.
a[n]=( f[n] + g[n] ) % n
where, f[n] = f[... |
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Given is an integer N. Find the minimum possible positive integer k such that (1+2+\cdots+k) is a multiple of N. It can be proved that such a positive integer k always exists.
Constraints
* 1 \leq N \leq 10^{15}
* All values in input are integers.
In... |
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You are playing a game and your goal is to maximize your expected gain. At the beginning of the game, a pawn is put, uniformly at random, at a position p\in\\{1,2,\dots, N\\}. The N positions are arranged on a circle (so that 1 is between N and 2).
The... |
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Given is a lowercase English letter C that is not `z`. Print the letter that follows C in alphabetical order.
Constraints
* C is a lowercase English letter that is not `z`.
Input
Input is given from Standard Input in the following format:
C
Outp... |
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Given are two strings s and t consisting of lowercase English letters. Determine if there exists an integer i satisfying the following condition, and find the minimum such i if it exists.
* Let s' be the concatenation of 10^{100} copies of s. t is a su... |
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In Dwango Co., Ltd., there is a content distribution system named 'Dwango Media Cluster', and it is called 'DMC' for short.
The name 'DMC' sounds cool for Niwango-kun, so he starts to define DMC-ness of a string.
Given a string S of length N and an int... |
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You are given a string S.
Takahashi can insert the character `A` at any position in this string any number of times.
Can he change S into `AKIHABARA`?
Constraints
* 1 \leq |S| \leq 50
* S consists of uppercase English letters.
Input
Input is given... |
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There are N cats. We number them from 1 through N.
Each of the cats wears a hat. Cat i says: "there are exactly a_i different colors among the N - 1 hats worn by the cats except me."
Determine whether there exists a sequence of colors of the hats that... |
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Have you ever heard of the unit "○○ tsubo" that expresses the area of land? Since ancient times, one samurai has said the area for making rice to eat in a day.
There is a land of a [m] x b [m]. Enter a and b and create a program that outputs the tsub... |
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Taro and Hanako decided to play hit-and-blow. The hit-and-blow rules are as follows.
* Separated into questioners and respondents.
* The questioner decides a 4-digit number (correct answer) that does not include duplicate numbers.
* Respondents guess t... |
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Our master carpenter is designing a condominium called Bange Hills Mansion. The condominium is constructed by stacking up floors of the same height. The height of each floor is designed so that the total height of the stacked floors coincides with the p... |
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Peter loves any kinds of cheating. A week before ICPC, he broke into Doctor's PC and sneaked a look at all the problems that would be given in ICPC. He solved the problems, printed programs out, and brought into ICPC. Since electronic preparation is str... |
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The configuration of three circles packed inside a triangle such that each circle is tangent to the other two circles and to two of the edges of the triangle has been studied by many mathematicians for more than two centuries. Existence and uniqueness o... |
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Princess'Gamble
Princess gambling
English text is not available in this practice contest.
One day, a brave princess in a poor country's tomboy broke the walls of her room, escaped from the castle, and entered the gambling hall where horse racing and ... |
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<image>
One evening. As usual, when you were watching TV in the living room, my sister in fifth grade offered me a consultation. When I listened to the story, I couldn't understand the math problem that was presented at school today, so I want you to t... |
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A: Taking a Seat-Taking a Seat-
story
Mr. A entered the classroom at the examination site to take an examination. However, Mr. A is a very nervous type. Therefore, depending on the situation, there may be seats that Mr. A does not want to sit in. Ther... |
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You have N items that you want to put them into a knapsack. Item i has value vi and weight wi.
You want to find a subset of items to put such that:
* The total value of the items is as large as possible.
* The items have combined weight at most W, tha... |
Solve the programming task below in a Python markdown code block.
Mike is given a matrix A, N and M are numbers of rows and columns respectively. A1, 1 is the number in the top left corner. All the numbers in A are non-negative integers. He also has L pairs of integers (ik, jk). His task is to calculate Ai1, j1 + Ai2,... |
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