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Coding
codecontest
Write Python code to solve the task. ICPC Ranking Your mission in this problem is to write a program which, given the submission log of an ICPC (International Collegiate Programming Contest), determines team rankings. The log is a sequence of records of program submission in the order of submission. A record has four...
Step 1: The program should take the input of the entire sequence of datasets and process each dataset according to the specified rules. Step 2: The problem involves calculating the rankings of teams based on their submissions and elapsed time. We need to consider submission correctness and penalties, and then sort th...
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Coding
codecontest
Write Python code to solve the task. Alice and Bob are playing chess on a huge chessboard with dimensions n × n. Alice has a single piece left — a queen, located at (a_x, a_y), while Bob has only the king standing at (b_x, b_y). Alice thinks that as her queen is dominating the chessboard, victory is hers. But Bob has...
Step 1: To solve this problem, we need to decide if Bob's king can reach its target without getting in check from Alice's queen. Step 2: We can achieve this by using a breadth-first search (BFS) algorithm to explore all possible moves of the king. Step 3: We also need to determine if any of these moves are in check,...
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Coding
codecontest
Write Python code to solve the task. Alice and Bob are playing chess on a huge chessboard with dimensions n × n. Alice has a single piece left — a queen, located at (a_x, a_y), while Bob has only the king standing at (b_x, b_y). Alice thinks that as her queen is dominating the chessboard, victory is hers. But Bob has...
Step 1: The problem states a series of specific conditions that need to be satisfied in order for Bob's king to move without ever getting in check. Step 2: We can follow a step-by-step approach to implement the conditions: first, check the relative position of the king and the queen to determine the direction of thei...
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8053d7b8c9ac99f19059cf2248df5571d6a8f897d8d28c9a5c47635ae7f70d50
Coding
codecontest
Write Python code to solve the task. Alice and Bob are playing chess on a huge chessboard with dimensions n × n. Alice has a single piece left — a queen, located at (a_x, a_y), while Bob has only the king standing at (b_x, b_y). Alice thinks that as her queen is dominating the chessboard, victory is hers. But Bob has...
Step 1: The problem requires us to determine whether Bob, who has only a king left, can move his king to a certain position without it getting in check from Alice's queen. Step 2: To solve this, we need to consider the location of the queen and the target square. We need to traverse to the target square without eve...
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Coding
codecontest
Write Python code to solve the task. A frog is initially at position 0 on the number line. The frog has two positive integers a and b. From a position k, it can either jump to position k+a or k-b. Let f(x) be the number of distinct integers the frog can reach if it never jumps on an integer outside the interval [0, x]...
Step 1: The problem involves keeping track of the positions the frog can reach, given certain conditions. We need to figure out a way to count the number of distinct integers the frog can reach if it never jumps on an integer outside the interval [0, x]. Step 2: We are also given an integer m and required to find the...
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Coding
codecontest
Write Python code to solve the task. A frog is initially at position 0 on the number line. The frog has two positive integers a and b. From a position k, it can either jump to position k+a or k-b. Let f(x) be the number of distinct integers the frog can reach if it never jumps on an integer outside the interval [0, x]...
Step 1: To solve this problem, we need to find the number of distinct integers the frog can reach within the given restrictions. Step 2: We need to calculate f(i) for each integer i from 0 to m, where f(i) is the number of distinct integers the frog can reach starting from 0. Step 3: We can use a recursive approach ...
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Coding
codecontest
Write Python code to solve the task. A frog is initially at position 0 on the number line. The frog has two positive integers a and b. From a position k, it can either jump to position k+a or k-b. Let f(x) be the number of distinct integers the frog can reach if it never jumps on an integer outside the interval [0, x]...
Step 1: The problem can be divided into the following steps: 1. First, obtain input values for m, a, and b. 2. Calculate the maximum number of positions the frog can jump to at a time. 3. Create an array to store the number of distinct integers reachable from each position. 4. Calculate the sum of f(i) for i in the ra...
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9e22d2a5fe61f508050a00d9b54bbf41df0997b57e20a911560a62589f763c17
Coding
codecontest
Write Python code to solve the task. Andrey thinks he is truly a successful developer, but in reality he didn't know about the binary search algorithm until recently. After reading some literature Andrey understood that this algorithm allows to quickly find a certain number x in an array. For an array a indexed from ze...
Step 1: The problem requires finding the number of permutations of size n which contain x at position pos and for which the given implementation of the binary search algorithm finds x (returns true). Step 2: We want to calculate the remainder of the division of the number of valid permutations by 10^9+7. Step 3: To...
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a052eaea9b2a2596f79a5cbc12117630238a3fedb4b016794a019851beabcf45
Coding
codecontest
Write Python code to solve the task. Andrey thinks he is truly a successful developer, but in reality he didn't know about the binary search algorithm until recently. After reading some literature Andrey understood that this algorithm allows to quickly find a certain number x in an array. For an array a indexed from ze...
Step 1: The given code uses a modified binary search algorithm that updates the number of valid permutations based on the position of x. Step 2: The algorithm calculates the number of valid permutations of size n such that the binary search finds x at position pos. Step 3: It uses variables left and right to repres...
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a052eaea9b2a2596f79a5cbc12117630238a3fedb4b016794a019851beabcf45
Coding
codecontest
Write Python code to solve the task. Andrey thinks he is truly a successful developer, but in reality he didn't know about the binary search algorithm until recently. After reading some literature Andrey understood that this algorithm allows to quickly find a certain number x in an array. For an array a indexed from ze...
Step 1: The problem requires finding the number of permutations of size n in which the binary search algorithm finds x at position pos. Step 2: The given implementation of the binary search algorithm updates the left and right counts based on the position of x, and then calculates the total permutations. Step 3: We ...
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Coding
codecontest
Write Python code to solve the task. Valera's finally decided to go on holiday! He packed up and headed for a ski resort. Valera's fancied a ski trip but he soon realized that he could get lost in this new place. Somebody gave him a useful hint: the resort has n objects (we will consider the objects indexed in some wa...
Step 1: The problem aims to find the longest path from the hotel to a mountain, and the track must meet the conditions and constraints given in the prompt. Step 2: The solution must focus on iterating through the path to calculate the maximum length and maintaining the conditions of the track. Step 3: The code snipp...
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Coding
codecontest
Write Python code to solve the task. Valera's finally decided to go on holiday! He packed up and headed for a ski resort. Valera's fancied a ski trip but he soon realized that he could get lost in this new place. Somebody gave him a useful hint: the resort has n objects (we will consider the objects indexed in some wa...
Step 1: The problem requires finding the longest path starting from a mountain and ending at a hotel, following ski tracks from mountains to hotels. Step 2: To solve this problem, we need to efficiently process the ski tracks and determine the longest path. Step 3: We can use a graph data structure to represent the ...
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8f934cd4133210ef69e9722c81dbbb586ce65cedc5e3bc6aea9b86ae1203d3e0
Coding
codecontest
Write Python code to solve the task. Valera's finally decided to go on holiday! He packed up and headed for a ski resort. Valera's fancied a ski trip but he soon realized that he could get lost in this new place. Somebody gave him a useful hint: the resort has n objects (we will consider the objects indexed in some wa...
Step 1: The problem describes a ski resort with hotels and mountains, with ski tracks connecting them. The objective is to find the longest path from a mountain to a hotel, such that the path follows the ski tracks. Step 2: We'll need to use a graph representation to store the ski tracks. Then, we can use a graph tr...
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Coding
codecontest
Write Python code to solve the task. It is so boring in the summer holiday, isn't it? So Alice and Bob have invented a new game to play. The rules are as follows. First, they get a set of n distinct integers. And then they take turns to make the following moves. During each move, either Alice or Bob (the player whose t...
Step 1: The problem asks us to determine the winner of the game based on a set of distinct integers and the rules of the game. Step 2: We need to iterate through the set of integers and check for the existence of any common prime factors among the integers. Step 3: Then we need to perform some mathematical calculati...
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Coding
codecontest
Write Python code to solve the task. It is so boring in the summer holiday, isn't it? So Alice and Bob have invented a new game to play. The rules are as follows. First, they get a set of n distinct integers. And then they take turns to make the following moves. During each move, either Alice or Bob (the player whose t...
Step 1: The problem requires implementing a game where two players take turns adding an integer to a set based on certain rules and determining the winner of the game. The logic of the game and win condition needs to be clearly understood before proceeding with the solution. The solution should involve using a funct...
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8c9c9230bf737b17c8c530c995c431785764c2e7ebe49eb8a84f136ddfdebbd9
Coding
codecontest
Write Python code to solve the task. It is so boring in the summer holiday, isn't it? So Alice and Bob have invented a new game to play. The rules are as follows. First, they get a set of n distinct integers. And then they take turns to make the following moves. During each move, either Alice or Bob (the player whose t...
Step 1: The problem requires us to determine the winner of a game between Alice and Bob. Step 2: The game involves taking turns to make moves within certain rules. Players add integers to a set, and the game ends when a player cannot make a valid move. Step 3: The solution will involve implementing the game rules ...
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8c9c9230bf737b17c8c530c995c431785764c2e7ebe49eb8a84f136ddfdebbd9
Coding
codecontest
Write Python code to solve the task. Nam is playing with a string on his computer. The string consists of n lowercase English letters. It is meaningless, so Nam decided to make the string more beautiful, that is to make it be a palindrome by using 4 arrow keys: left, right, up, down. There is a cursor pointing at some...
Step 1: To solve this problem, we need to find the minimum number of arrow key presses required to make the given string a palindrome. Step 2: We can start by analyzing the rules for moving the cursor and changing the letters in the string using arrow keys. Step 3: Then, we can devise a strategy to minimize the numb...
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eb5a70f1f9d804d2b6aa49e10fd4ffeb762f25778335162349b1aa56ebf15edf
Coding
codecontest
Write Python code to solve the task. Nam is playing with a string on his computer. The string consists of n lowercase English letters. It is meaningless, so Nam decided to make the string more beautiful, that is to make it be a palindrome by using 4 arrow keys: left, right, up, down. There is a cursor pointing at some...
Step 1: To solve this problem, we need to determine the minimum number of arrow keys presses required to make a given string a palindrome. Step 2: Since the left and right arrow keys allow the cursor to move around the string, we need to find the optimal path for the cursor to traverse the string and change the lette...
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eb5a70f1f9d804d2b6aa49e10fd4ffeb762f25778335162349b1aa56ebf15edf
Coding
codecontest
Write Python code to solve the task. Nam is playing with a string on his computer. The string consists of n lowercase English letters. It is meaningless, so Nam decided to make the string more beautiful, that is to make it be a palindrome by using 4 arrow keys: left, right, up, down. There is a cursor pointing at some...
Step 1: The problem requires us to find the minimum number of arrow key presses needed to make the given string a palindrome. Step 2: To solve the problem, we need to consider the cursor's initial position and how it affects the string transformation to a palindrome. Step 3: We also need to compare the characters fr...
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eb5a70f1f9d804d2b6aa49e10fd4ffeb762f25778335162349b1aa56ebf15edf
Coding
codecontest
Write Python code to solve the task. Modern text editors usually show some information regarding the document being edited. For example, the number of words, the number of pages, or the number of characters. In this problem you should implement the similar functionality. You are given a string which only consists of:...
Step 1: The code snippet provided uses a function to determine the length of the longest word outside the parentheses and the number of words inside the parentheses. Step 2: To achieve this, the code iterates through the input phrase and uses flags and variables to keep track of the inside and outside parentheses, wh...
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6d62b60f9497586aa551c46ec5017425790aa61a98051dd7cda2a734fb1f36e0
Coding
codecontest
Write Python code to solve the task. Modern text editors usually show some information regarding the document being edited. For example, the number of words, the number of pages, or the number of characters. In this problem you should implement the similar functionality. You are given a string which only consists of:...
Step 1: To solve this problem, we first need to understand the structure of the input string and the conditions for identifying words inside and outside parentheses. Step 2: We can iterate through the characters of the string and keep track of word lengths, whether we are inside the parentheses or not, and count word...
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6d62b60f9497586aa551c46ec5017425790aa61a98051dd7cda2a734fb1f36e0
Coding
codecontest
Write Python code to solve the task. Modern text editors usually show some information regarding the document being edited. For example, the number of words, the number of pages, or the number of characters. In this problem you should implement the similar functionality. You are given a string which only consists of:...
Step 1: To solve this problem, we need to process the input string to identify the longest word outside the parentheses and count the number of words inside the parentheses. We can start by dividing the string into words using the parentheses as delimiters. Then, we can iterate through each word and calculate its leng...
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6d62b60f9497586aa551c46ec5017425790aa61a98051dd7cda2a734fb1f36e0
Coding
codecontest
Write Python code to solve the task. This problem is the most boring one you've ever seen. Given a sequence of integers a1, a2, ..., an and a non-negative integer h, our goal is to partition the sequence into two subsequences (not necessarily consist of continuous elements). Each element of the original sequence shou...
Step 1: The problem asks for a partition of the given sequence that has the minimal possible goodness among all possible partitions. Step 2: The goodness of the partition can be calculated based on the values of the function f defined on pairs of distinct elements in the original sequence. Step 3: To solve this prob...
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3dced3b5d32ebbd0761c04c3b847174f114f731dd46f6f378e499016c7cfda1d
Coding
codecontest
Write Python code to solve the task. This problem is the most boring one you've ever seen. Given a sequence of integers a1, a2, ..., an and a non-negative integer h, our goal is to partition the sequence into two subsequences (not necessarily consist of continuous elements). Each element of the original sequence shou...
Step 1: The problem requires finding a partition of the given sequence that has the minimal possible goodness among all possible partitions. Step 2: This partition will be formed by two subsequences, and the result should contain all elements of the original sequence, with each element of the original sequence contai...
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3dced3b5d32ebbd0761c04c3b847174f114f731dd46f6f378e499016c7cfda1d
Coding
codecontest
Write Python code to solve the task. This problem is the most boring one you've ever seen. Given a sequence of integers a1, a2, ..., an and a non-negative integer h, our goal is to partition the sequence into two subsequences (not necessarily consist of continuous elements). Each element of the original sequence shou...
Step 1: The problem requires us to find the difference between the maximum and minimum values of function f for a given partition, and in particular, it wants us to find the partition that has the minimal possible goodness. Step 2: We can calculate the difference of the pairs of elements in the input sequence based o...
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3dced3b5d32ebbd0761c04c3b847174f114f731dd46f6f378e499016c7cfda1d
Coding
codecontest
Write Python code to solve the task. There are n cities in Westeros. The i-th city is inhabited by ai people. Daenerys and Stannis play the following game: in one single move, a player chooses a certain town and burns it to the ground. Thus all its residents, sadly, die. Stannis starts the game. The game ends when West...
Step 1: To solve this problem, we need to determine the winner of the game based on the configuration of cities and their populations. Step 2: We can start by processing the input to get the initial number of cities and the ending number of cities, as well as their populations. Step 3: Then, we can calculate the tot...
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Coding
codecontest
Write Python code to solve the task. There are n cities in Westeros. The i-th city is inhabited by ai people. Daenerys and Stannis play the following game: in one single move, a player chooses a certain town and burns it to the ground. Thus all its residents, sadly, die. Stannis starts the game. The game ends when West...
Step 1: The problem requires determining the winner of a game between Daenerys and Stannis based on the number of cities left and the total number of people in the cities. Step 2: The function "solve" takes the number of cities (n), the number of cities at which the game ends (k), and the population of each city (ps)...
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e823c8cd11cc8520377d0738b853ad969199c826ed1060e6ecea4d9bb1de5ec9
Coding
codecontest
Write Python code to solve the task. There are n cities in Westeros. The i-th city is inhabited by ai people. Daenerys and Stannis play the following game: in one single move, a player chooses a certain town and burns it to the ground. Thus all its residents, sadly, die. Stannis starts the game. The game ends when West...
Step 1: To solve this problem, we need to determine which player will win the game based on the number of surviving residents. Step 2: We can iterate through the cities, counting the number of residents in each city and categorizing them as odd or even. Step 3: We need to keep track of the number of odd and even res...
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e823c8cd11cc8520377d0738b853ad969199c826ed1060e6ecea4d9bb1de5ec9
Coding
codecontest
Write Python code to solve the task. Denis, after buying flowers and sweets (you will learn about this story in the next task), went to a date with Nastya to ask her to become a couple. Now, they are sitting in the cafe and finally... Denis asks her to be together, but ... Nastya doesn't give any answer. The poor boy...
Step 1: The problem requires us to determine the maximum possible number that can appear on the scoreboard if exactly k segments are turned on. Step 2: We need to convert the input binary strings into decimal representations of the digits on the scoreboard. Step 3: Then, we can use dynamic programming to check for a...
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a39e2b28bb995563a40e4d315f6015ccce7606e0a4abf6b35afee2d16cc9e2ea
Coding
codecontest
Write Python code to solve the task. Denis, after buying flowers and sweets (you will learn about this story in the next task), went to a date with Nastya to ask her to become a couple. Now, they are sitting in the cafe and finally... Denis asks her to be together, but ... Nastya doesn't give any answer. The poor boy...
Step 1: The problem involves determining the maximum possible number that can appear on a scoreboard by turning on exactly k sticks. Step 2: To solve the problem, we need to consider all possible combinations of numbers that can be formed by turning on k sticks. Step 3: We also need to consider the cost associated w...
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a39e2b28bb995563a40e4d315f6015ccce7606e0a4abf6b35afee2d16cc9e2ea
Coding
codecontest
Write Python code to solve the task. Denis, after buying flowers and sweets (you will learn about this story in the next task), went to a date with Nastya to ask her to become a couple. Now, they are sitting in the cafe and finally... Denis asks her to be together, but ... Nastya doesn't give any answer. The poor boy...
Step 1: There are several things needed to solve this problem: 1. We need to understand how to represent the segments of each digit on the scoreboard. With each digit consisting of 7 segments, we will use a binary string of length 7 for each digit. 1 indicates the segment is glowing, and 0 indicates it is not glowing....
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a39e2b28bb995563a40e4d315f6015ccce7606e0a4abf6b35afee2d16cc9e2ea
Coding
codecontest
Write Python code to solve the task. One day Vasya came across three Berland coins. They didn't have any numbers that's why Vasya didn't understand how their denominations differ. He supposed that if one coin is heavier than the other one, then it should be worth more. Vasya weighed all the three pairs of coins on pan ...
Step 1: To solve this problem, we need to analyze the given weighing results and determine the relative weights of the three coins. Step 2: We can represent each weighing result as a relationship between two coins (e.g., A > B, B < C, etc.). Step 3: We need to consider all possible orderings of the coins and compare...
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c1860d98f529f98e5056f00391fbdb4cc49f7b0c8f13303c9993b147c52644da
Coding
codecontest
Write Python code to solve the task. One day Vasya came across three Berland coins. They didn't have any numbers that's why Vasya didn't understand how their denominations differ. He supposed that if one coin is heavier than the other one, then it should be worth more. Vasya weighed all the three pairs of coins on pan ...
Step 1: The problem requires us to determine the denominations of three coins based on the weighing results provided by Vasya. Step 2: The input data contains the results of the weighting, one result on each line, and Vasya labeled the coins with letters A, B, and C. Step 3: We need to analyze the weighting results ...
b0da9921699731b2e2d2e7779e87195c7fa75e43a474fecf1ed289eb4d1007e7_1_1
c1860d98f529f98e5056f00391fbdb4cc49f7b0c8f13303c9993b147c52644da
Coding
codecontest
Write Python code to solve the task. One day Vasya came across three Berland coins. They didn't have any numbers that's why Vasya didn't understand how their denominations differ. He supposed that if one coin is heavier than the other one, then it should be worth more. Vasya weighed all the three pairs of coins on pan ...
Step 1: The problem requires determining the order of increasing weight amongst three coins based on the results of the weighing. Step 2: We need a logical approach to count the number of times each coin is weighed as lighter. Step 3: If the number of times a coin is weighed as lighter is not 2, then it is impossibl...
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Coding
codecontest
Write Python code to solve the task. Petya studies at university. The current academic year finishes with n special days. Petya needs to pass m exams in those special days. The special days in this problem are numbered from 1 to n. There are three values about each exam: * s_i — the day, when questions for the i-th...
Step 1: The solution appears to read the input parameters for the number of days and exams and loops through the exams. Each exam is represented by its start and end day, and the number of days required for preparation. It then sorts the exams by the end day and fills in the schedule based on the number of days requir...
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74f23cfbacfa3096b6bc9e8a2205f19fca957a3d74132870321c378e07fe1c58
Coding
codecontest
Write Python code to solve the task. Petya studies at university. The current academic year finishes with n special days. Petya needs to pass m exams in those special days. The special days in this problem are numbered from 1 to n. There are three values about each exam: * s_i — the day, when questions for the i-th...
Step 1: To solve this problem, we need to consider the constraints imposed by the exam schedule and the time Petya requires for preparation. Step 2: We should track the time required for each exam and determine whether Petya has adequate time to prepare and take the exams. Step 3: When deciding the preparation order...
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74f23cfbacfa3096b6bc9e8a2205f19fca957a3d74132870321c378e07fe1c58
Coding
codecontest
Write Python code to solve the task. Petya studies at university. The current academic year finishes with n special days. Petya needs to pass m exams in those special days. The special days in this problem are numbered from 1 to n. There are three values about each exam: * s_i — the day, when questions for the i-th...
Step 1: The given problem can be solved using a greedy approach. We need to determine if it is possible for Petya to prepare for all the exams and pass them, given certain constraints and requirements. We can use a list ans[] to represent the schedule of Petya, with each element representing an activity for a specific...
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74f23cfbacfa3096b6bc9e8a2205f19fca957a3d74132870321c378e07fe1c58
Coding
codecontest
Write Python code to solve the task. On the Literature lesson Sergei noticed an awful injustice, it seems that some students are asked more often than others. Seating in the class looks like a rectangle, where n rows with m pupils in each. The teacher asks pupils in the following order: at first, she asks all pupils...
Step 1: To solve this problem, we need to understand the order of asking pupils in a rectangular seating layout. Step 2: The teacher continues to ask pupils in the order of their seating, and the direction of the poll changes once the teacher reaches the last row. Step 3: We are asked to count the maximum and minimu...
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f68560368aace79eec002f0fb51154ccdbf6f4d3b81467c82bfb98c9c49d41c1
Coding
codecontest
Write Python code to solve the task. On the Literature lesson Sergei noticed an awful injustice, it seems that some students are asked more often than others. Seating in the class looks like a rectangle, where n rows with m pupils in each. The teacher asks pupils in the following order: at first, she asks all pupils...
Step 1: To solve this problem, we need to determine the number of times each pupil is asked a question and find out how many times the teacher asked a particular student, Sergei. Step 2: The teacher alternates asking students from each row, and the direction of the poll changes after she has asked all rows. In other ...
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f68560368aace79eec002f0fb51154ccdbf6f4d3b81467c82bfb98c9c49d41c1
Coding
codecontest
Write Python code to solve the task. On the Literature lesson Sergei noticed an awful injustice, it seems that some students are asked more often than others. Seating in the class looks like a rectangle, where n rows with m pupils in each. The teacher asks pupils in the following order: at first, she asks all pupils...
Step 1: Given the dimensions of the class, the number of questions asked, and the position of Sergei, we need to determine the number of questions asked to various pupils including Sergei. Step 2: We also need to calculate the maximum and minimum number of questions asked to a particular pupil. Step 3: The number of...
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f68560368aace79eec002f0fb51154ccdbf6f4d3b81467c82bfb98c9c49d41c1
Coding
codecontest
Write Python code to solve the task. You are given several queries. In the i-th query you are given a single positive integer ni. You are to represent ni as a sum of maximum possible number of composite summands and print this maximum number, or print -1, if there are no such splittings. An integer greater than 1 is c...
Step 1: To solve this problem, we need to determine the maximum possible number of summands in a valid splitting to composite summands for each query. Step 2: We can determine if a number is composite and identify the maximal composite summands for that number. Step 3: Based on the divisibility of the number, we can...
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Coding
codecontest
Write Python code to solve the task. You are given several queries. In the i-th query you are given a single positive integer ni. You are to represent ni as a sum of maximum possible number of composite summands and print this maximum number, or print -1, if there are no such splittings. An integer greater than 1 is c...
Step 1: To solve this problem, we need to find the maximum possible number of composite summands for a given positive integer, or determine if there are no valid splittings. Step 2: Composite summands are integers greater than 1 that are not prime and have positive divisors other than 1 and the integer itself. Step 3...
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ff102343471c9253878378ab15239eb21796d7f45676eacfcb4320246926ccb2
Coding
codecontest
Write Python code to solve the task. You are given several queries. In the i-th query you are given a single positive integer ni. You are to represent ni as a sum of maximum possible number of composite summands and print this maximum number, or print -1, if there are no such splittings. An integer greater than 1 is c...
Step 1: To solve this problem, we need to determine if the input integer can be represented as a sum of maximum possible number of composite summands. Step 2: We also need to consider that if there are no such splitting, then we should print -1 as the output. Step 3: We can use a list of precomputed results to outpu...
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ff102343471c9253878378ab15239eb21796d7f45676eacfcb4320246926ccb2
Coding
codecontest
Write Python code to solve the task. Raju is very much interested in winning money through lotteries. Lottery Association is organising lottery matches quite frequently. A lottery match begins at certain time and ends at a certain time. Raju can buy ticket of certain match if he wants to bet in that match. But accord...
Step 1: To solve this problem, the expected number of lotteries that Raju will win should be calculated taking the winning probability into consideration. Step 2: We can start by reading the input for the number of test cases and the details for each test case. Step 3: For each test case, we can gather the informati...
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dd91bf6db99a43c6e6a9641ace5dc91bbfa2b238d05f09dfd692e6a25b3d8448
Coding
codecontest
Write Python code to solve the task. Raju is very much interested in winning money through lotteries. Lottery Association is organising lottery matches quite frequently. A lottery match begins at certain time and ends at a certain time. Raju can buy ticket of certain match if he wants to bet in that match. But accord...
Step 1: The problem requires calculating the maximal expected number of lotteries that Raju will win if he buys tickets of the optimal subset of non-conflicting lottery matches. Step 2: Raju can take part in matches that have no overlaps in time. Step 3: We need to sort the matches based on their ending times and th...
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dd91bf6db99a43c6e6a9641ace5dc91bbfa2b238d05f09dfd692e6a25b3d8448
Coding
codecontest
Write Python code to solve the task. Raju is very much interested in winning money through lotteries. Lottery Association is organising lottery matches quite frequently. A lottery match begins at certain time and ends at a certain time. Raju can buy ticket of certain match if he wants to bet in that match. But accord...
Step 1: This problem can be solved using the greedy approach. We need to maximize the expected number of lotteries that Raju will win by buying tickets for the optimal subset of non-conflicting lottery matches. Step 2: First, we need to define a function to check if two lottery matches conflict with each other. We ca...
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dd91bf6db99a43c6e6a9641ace5dc91bbfa2b238d05f09dfd692e6a25b3d8448
Coding
codecontest
Write Python code to solve the task. Almost every text editor has a built-in function of center text alignment. The developers of the popular in Berland text editor «Textpad» decided to introduce this functionality into the fourth release of the product. You are to implement the alignment in the shortest possible time...
Step 1: The problem involves formatting the input text by aligning it to the center and framing it with asterisks. This can be achieved by first calculating the maximum length of the lines in the text, and then padding each line with spaces to align them to the center. If a line cannot be aligned perfectly, the paddin...
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b05226dec42f3785acfb5968fe75d757c7c1f17aaf2d5028ef9f9cdb977c7b58
Coding
codecontest
Write Python code to solve the task. Almost every text editor has a built-in function of center text alignment. The developers of the popular in Berland text editor «Textpad» decided to introduce this functionality into the fourth release of the product. You are to implement the alignment in the shortest possible time...
Step 1: The solution needs to read input from standard input and process it to align the text, and then print the aligned output to standard output. Step 2: We can start by reading the input lines from standard input and stripping the newline character from each line. Step 3: Then, we need to determine the maximum l...
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b05226dec42f3785acfb5968fe75d757c7c1f17aaf2d5028ef9f9cdb977c7b58
Coding
codecontest
Write Python code to solve the task. Almost every text editor has a built-in function of center text alignment. The developers of the popular in Berland text editor «Textpad» decided to introduce this functionality into the fourth release of the product. You are to implement the alignment in the shortest possible time...
Step 1: The problem requires formatting the given text such that it aligns to the center and is framed with `*`. Step 2: We need to find the longest line in the input text to determine the width of the block, which will be used for centering. Step 3: Then, we need to process each line to align it to the center and f...
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b05226dec42f3785acfb5968fe75d757c7c1f17aaf2d5028ef9f9cdb977c7b58
Coding
codecontest
Write Python code to solve the task. Manao has a monitor. The screen of the monitor has horizontal to vertical length ratio a:b. Now he is going to watch a movie. The movie's frame has horizontal to vertical length ratio c:d. Manao adjusts the view in such a way that the movie preserves the original frame ratio, but al...
Step 1: The problem requires us to calculate the ratio of empty screen (unoccupied by the movie) to the total screen size, given the aspect ratios of the monitor and the movie. Step 2: To solve this problem, we can first read the input values for the monitor's and movie's aspect ratios. Step 3: Then, we can calculat...
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1ad590daf5b86440b10ab636429c66224496f9f3cedf07331d146148830d0006
Coding
codecontest
Write Python code to solve the task. Manao has a monitor. The screen of the monitor has horizontal to vertical length ratio a:b. Now he is going to watch a movie. The movie's frame has horizontal to vertical length ratio c:d. Manao adjusts the view in such a way that the movie preserves the original frame ratio, but al...
Step 1: The problem is asking us to calculate the ratio of empty screen to total screen size after a movie with a given frame ratio is adjusted to fit on the screen. Step 2: To calculate this ratio, we can use the formula (total screen size - movie size) / total screen size, where the total screen size is given by th...
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1ad590daf5b86440b10ab636429c66224496f9f3cedf07331d146148830d0006
Coding
codecontest
Write Python code to solve the task. Manao has a monitor. The screen of the monitor has horizontal to vertical length ratio a:b. Now he is going to watch a movie. The movie's frame has horizontal to vertical length ratio c:d. Manao adjusts the view in such a way that the movie preserves the original frame ratio, but al...
Step 1: To solve this problem, we need to calculate the ratio of empty screen to the total screen size when fitting a movie frame to a monitor screen. Step 2: We can calculate the aspect ratio of the movie frame and the monitor screen. Step 3: Then, we can find the ratio of empty screen by performing some calculati...
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1ad590daf5b86440b10ab636429c66224496f9f3cedf07331d146148830d0006
Coding
codecontest
Write Python code to solve the task. While Patrick was gone shopping, Spongebob decided to play a little trick on his friend. The naughty Sponge browsed through Patrick's personal stuff and found a sequence a1, a2, ..., am of length m, consisting of integers from 1 to n, not necessarily distinct. Then he picked some se...
Step 1: The problem requires us to restore the original sequence from the given sequence and determine if it's possible, ambiguous, or impossible. Step 2: We need to map each number in the sequence f to the index of its first occurrence. If a number repeats, we'll consider only the first occurrence. Step 3: After ma...
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c0ef4c9f32c66c6d8344c08ee1285bc6b251bacc88173ab3cbcb873ba898e541
Coding
codecontest
Write Python code to solve the task. While Patrick was gone shopping, Spongebob decided to play a little trick on his friend. The naughty Sponge browsed through Patrick's personal stuff and found a sequence a1, a2, ..., am of length m, consisting of integers from 1 to n, not necessarily distinct. Then he picked some se...
Step 1: The problem involves finding a sequence ai such that bi = f(ai), given sequences f and b. We need to check for the possibility of a valid sequence, as well as the uniqueness of the sequence. To solve this problem, we can create a dictionary to store the indices of elements in the sequence f. We will also keep...
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c0ef4c9f32c66c6d8344c08ee1285bc6b251bacc88173ab3cbcb873ba898e541
Coding
codecontest
Write Python code to solve the task. While Patrick was gone shopping, Spongebob decided to play a little trick on his friend. The naughty Sponge browsed through Patrick's personal stuff and found a sequence a1, a2, ..., am of length m, consisting of integers from 1 to n, not necessarily distinct. Then he picked some se...
Step 1: We need to check if it's possible to restore the original sequence based on the given input. Step 2: We also need to determine whether there is only one sequence ai that matches the given sequence bi from the input. Step 3: The check involves comparing the sequences and finding if there are any duplicates or...
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c0ef4c9f32c66c6d8344c08ee1285bc6b251bacc88173ab3cbcb873ba898e541
Coding
codecontest
Write Python code to solve the task. Andrey received a postcard from Irina. It contained only the words "Hello, Andrey!", and a strange string consisting of lowercase Latin letters, snowflakes and candy canes. Andrey thought that this string is an encrypted message, and decided to decrypt it. Andrey noticed that snowf...
Step 1: The given problem relates to decoding a message from a string that contains snowflakes and candy canes, indicating whether to remove or repeat a previous letter. Step 2: We need to iterate through the string and create the resulting decoded message by handling the snowflakes and candy canes accordingly. Step ...
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54c2925d80410a6537de8b1594c8a372d324a64a8aba2b2a27977a339b2de354
Coding
codecontest
Write Python code to solve the task. Andrey received a postcard from Irina. It contained only the words "Hello, Andrey!", and a strange string consisting of lowercase Latin letters, snowflakes and candy canes. Andrey thought that this string is an encrypted message, and decided to decrypt it. Andrey noticed that snowf...
Step 1: The problem requires implementing a function that checks whether a given string can encode a message of k letters, by removing, keeping, or repeating letters based on the locations of snowflakes and candy canes in the string. Step 2: The function should compare the lengths of the string and the target message...
4bf4cbc070392de8a145ea072a79a662c2b89d25e30b6a4c6ed5f2b3373917a1_1_1
54c2925d80410a6537de8b1594c8a372d324a64a8aba2b2a27977a339b2de354
Coding
codecontest
Write Python code to solve the task. Andrey received a postcard from Irina. It contained only the words "Hello, Andrey!", and a strange string consisting of lowercase Latin letters, snowflakes and candy canes. Andrey thought that this string is an encrypted message, and decided to decrypt it. Andrey noticed that snowf...
Step 1: The problem requires decoding a given string based on the presence of snowflake and candy cane symbols. The first goal is to find a message of length k that can be encoded from the given string. If no such message exists, the output should be "Impossible". Step 2: The decoding process involves considering the...
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54c2925d80410a6537de8b1594c8a372d324a64a8aba2b2a27977a339b2de354
Coding
codecontest
Write Python code to solve the task. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. This means that the heights of trees on ends ...
Step 1: To solve this problem, we need to identify the number of changes required for the sequence of tree heights to become beautiful. Step 2: We can start by processing the input data and updating the tree heights according to the beautiful sequence rules. Step 3: We should keep track of the number of occurrences ...
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b4a75775984cb02800005d680117edc02ebc0477f57e9cf0f633607f8cc87f8e
Coding
codecontest
Write Python code to solve the task. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. This means that the heights of trees on ends ...
Step 1: To solve this problem, we need to find the smallest number of changes needed for the tree heights to form a beautiful sequence as described in the problem. Step 2: We can start by calculating the differences between each tree height and the expected height according to the beautiful sequence definition. Step...
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b4a75775984cb02800005d680117edc02ebc0477f57e9cf0f633607f8cc87f8e
Coding
codecontest
Write Python code to solve the task. On Bertown's main street n trees are growing, the tree number i has the height of ai meters (1 ≤ i ≤ n). By the arrival of the President of Berland these trees were decided to be changed so that their heights formed a beautiful sequence. This means that the heights of trees on ends ...
Step 1: The problem requires finding the minimum number of trees whose heights will have to be changed for the sequence to become beautiful. Step 2: To solve this problem, we need to identify the discrepancies between the tree heights and the expected beautiful sequence. Step 3: We will calculate the differences bet...
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b4a75775984cb02800005d680117edc02ebc0477f57e9cf0f633607f8cc87f8e
Coding
codecontest
Write Python code to solve the task. You get to work and turn on the computer. You start coding and give little thought to the RAM role in the whole process. In this problem your task is to solve one of the problems you encounter in your computer routine. We'll consider the RAM as a sequence of cells that can contain ...
Step 1: The problem is asking to determine the maximum number of arrays that can be located in the available memory clusters given the sizes of the memory clusters and the sizes of the arrays. Step 2: We can start by reading the input data, which includes the number of memory clusters, the number of arrays, the sizes...
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6e323293d941d421b3f62331146d2d717529a61f5995202c84f7da3147526754
Coding
codecontest
Write Python code to solve the task. You get to work and turn on the computer. You start coding and give little thought to the RAM role in the whole process. In this problem your task is to solve one of the problems you encounter in your computer routine. We'll consider the RAM as a sequence of cells that can contain ...
Step 1: The goal of this problem is to find the maximum number of arrays that can fit into the available memory clusters. This problem involves managing memory clusters, array sizes, and the number of arrays. Step 2: We can start by parsing the input data to get the memory cluster sizes and the array sizes. Then, we ...
570d754f1d3957bbc51c64fdc36db0f7905bc4d79696eea624acf700f848ff12_1_1
6e323293d941d421b3f62331146d2d717529a61f5995202c84f7da3147526754
Coding
codecontest
Write Python code to solve the task. You get to work and turn on the computer. You start coding and give little thought to the RAM role in the whole process. In this problem your task is to solve one of the problems you encounter in your computer routine. We'll consider the RAM as a sequence of cells that can contain ...
Step 1: The problem requires finding the maximum number of memory arrays that can be located in the available memory clusters. Step 2: We need to consider each of the memory clusters and arrays to determine which ones can accommodate the arrays and how many can be accommodated. Step 3: We'll iterate through the memo...
ee875518ba80b5a0617f0eba896fb7e4b175a61fc8d51dc18c940871c2cc0fa6_1_1
6e323293d941d421b3f62331146d2d717529a61f5995202c84f7da3147526754
Coding
codecontest
Write Python code to solve the task. Gerald plays the following game. He has a checkered field of size n × n cells, where m various cells are banned. Before the game, he has to put a few chips on some border (but not corner) board cells. Then for n - 1 minutes, Gerald every minute moves each chip into an adjacent cell....
Step 1: The goal of this problem is to find the maximum number of points Gerald can earn in the game by placing chips on the board. Step 2: We need to iterate through the board to maximize the number of chips placed while avoiding banned cells and satisfying the game's win conditions. Step 3: We should keep track of...
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d2b1697d76c30b8376f5837d6e43cb095c9fb006138d660d6cc5746353a70d1d
Coding
codecontest
Write Python code to solve the task. Gerald plays the following game. He has a checkered field of size n × n cells, where m various cells are banned. Before the game, he has to put a few chips on some border (but not corner) board cells. Then for n - 1 minutes, Gerald every minute moves each chip into an adjacent cell....
Step 1: The problem is asking us to calculate the maximum number of chips that Gerald can put on the board and earn points without losing the game. Step 2: We can start by reading the input to get the size of the field, the number of banned cells, and the coordinates of the banned cells. Step 3: Then, we will place ...
d5bc7c68ce859a47a3a3878012da5c6bc97ba98cb91b50ccd323a942a14f13ed_1_1
d2b1697d76c30b8376f5837d6e43cb095c9fb006138d660d6cc5746353a70d1d
Coding
codecontest
Write Python code to solve the task. Gerald plays the following game. He has a checkered field of size n × n cells, where m various cells are banned. Before the game, he has to put a few chips on some border (but not corner) board cells. Then for n - 1 minutes, Gerald every minute moves each chip into an adjacent cell....
Step 1: To solve this problem, we need to determine the maximum number of chips Gerald can place on the board without losing the game. Step 2: We can achieve this by considering the board's coordinates and the number of banned cells, m. Step 3: We will need to track which cells are banned, place the chips in the op...
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d2b1697d76c30b8376f5837d6e43cb095c9fb006138d660d6cc5746353a70d1d
Coding
codecontest
Write Python code to solve the task. Vasya is sitting on an extremely boring math class. To have fun, he took a piece of paper and wrote out n numbers on a single line. After that, Vasya began to write out different ways to put pluses ("+") in the line between certain digits in the line so that the result was a correct...
Step 1: To solve this problem, we need to calculate the sum of all the resulting arithmetic expressions by the end of the lesson. Step 2: We can start by parsing the input to extract the number of digits, the number of pluses, and the string of digits. Step 3: Once we have parsed the input, we can iterate through t...
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9ed70a240578e115de1f840d6e75b4676ce2a0a359eaf07d0c67ddb6c7b19348
Coding
codecontest
Write Python code to solve the task. Vasya is sitting on an extremely boring math class. To have fun, he took a piece of paper and wrote out n numbers on a single line. After that, Vasya began to write out different ways to put pluses ("+") in the line between certain digits in the line so that the result was a correct...
Step 1: The problem involves determining the correct arithmetic expressions formed by placing exactly k pluses in a string of digits and then calculating the sum of all the expressions. We also need to take into account the remainder when calculating the expression. A modular division function is used to determine the...
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9ed70a240578e115de1f840d6e75b4676ce2a0a359eaf07d0c67ddb6c7b19348
Coding
codecontest
Write Python code to solve the task. Vasya is sitting on an extremely boring math class. To have fun, he took a piece of paper and wrote out n numbers on a single line. After that, Vasya began to write out different ways to put pluses ("+") in the line between certain digits in the line so that the result was a correct...
Step 1: The overall task is to calculate the sum of all the resulting arithmetic expressions by placing exactly k pluses in a string of digits. This involves iterating through the digits and calculating the possible outcomes based on the position of the pluses. Step 2: The instructions also specify that the output sh...
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9ed70a240578e115de1f840d6e75b4676ce2a0a359eaf07d0c67ddb6c7b19348
Coding
codecontest
Write Python code to solve the task. The main street of Berland is a straight line with n houses built along it (n is an even number). The houses are located at both sides of the street. The houses with odd numbers are at one side of the street and are numbered from 1 to n - 1 in the order from the beginning of the str...
Step 1: The goal is to find the minimum time for Vasya to reach house a from the beginning of the street. Step 2: The houses are located at both sides of the street in a specific order and Vasya can park at any side of the road. Step 3: We need to consider the distance between the beginning of the street and the hou...
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03e600db76058518d8d35801a63ee7ef91a19ba45d2dabf4069447acdbb0f7b7
Coding
codecontest
Write Python code to solve the task. The main street of Berland is a straight line with n houses built along it (n is an even number). The houses are located at both sides of the street. The houses with odd numbers are at one side of the street and are numbered from 1 to n - 1 in the order from the beginning of the str...
Step 1: The problem requires us to calculate the minimum time Vasya needs to reach house a. Step 2: To solve this problem, we need to consider the position of house a relative to the midpoint of the street and the distance to the nearest end of the street. Step 3: We also need to consider the distance between the ho...
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03e600db76058518d8d35801a63ee7ef91a19ba45d2dabf4069447acdbb0f7b7
Coding
codecontest
Write Python code to solve the task. The main street of Berland is a straight line with n houses built along it (n is an even number). The houses are located at both sides of the street. The houses with odd numbers are at one side of the street and are numbered from 1 to n - 1 in the order from the beginning of the str...
Step 1: To solve this problem, we need to find the minimum time Vasya needs to reach house a. Step 2: We can calculate the minimum time by considering the distance between the beginning of the street and house a, taking into account the time needed to drive the distance between neighboring houses. Step 3: When drivi...
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03e600db76058518d8d35801a63ee7ef91a19ba45d2dabf4069447acdbb0f7b7
Coding
codecontest
Write Python code to solve the task. Alice and Bob play 5-in-a-row game. They have a playing field of size 10 × 10. In turns they put either crosses or noughts, one at a time. Alice puts crosses and Bob puts noughts. In current match they have made some turns and now it's Alice's turn. She wonders if she can put cross...
Step 1: To solve this problem, we need to check if Alice can place a cross in an empty cell to form a line of length not smaller than 5, either horizontally, vertically, or diagonally. Step 2: We can start by defining a function to search for possible winning positions given a specific cell on the grid. Step 3: We'l...
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b03f1cefb89a9fd40792f20f26e61d4f65be1b0ca82afa9281912feb5976e338
Coding
codecontest
Write Python code to solve the task. Alice and Bob play 5-in-a-row game. They have a playing field of size 10 × 10. In turns they put either crosses or noughts, one at a time. Alice puts crosses and Bob puts noughts. In current match they have made some turns and now it's Alice's turn. She wonders if she can put cross...
Step 1: The goal is to determine if Alice can win the game by placing a cross in an empty cell, creating a line of crosses of length at least 5 in a horizontal, vertical, or diagonal direction. Step 2: We can search for possible winning moves by iterating through each cell of the grid and checking if placing a cross ...
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b03f1cefb89a9fd40792f20f26e61d4f65be1b0ca82afa9281912feb5976e338
Coding
codecontest
Write Python code to solve the task. Alice and Bob play 5-in-a-row game. They have a playing field of size 10 × 10. In turns they put either crosses or noughts, one at a time. Alice puts crosses and Bob puts noughts. In current match they have made some turns and now it's Alice's turn. She wonders if she can put cross...
Step 1: The given problem is to determine if Alice can win the 5-in-a-row game by putting a cross in an empty cell. Step 2: To solve this problem, we need to iterate through all possible lines (horizontal, vertical, and diagonal) to see if there are four crosses and one empty cell, indicating a potential win. Step 3:...
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b03f1cefb89a9fd40792f20f26e61d4f65be1b0ca82afa9281912feb5976e338
Coding
codecontest
Write Python code to solve the task. Taro is addicted to a novel. The novel has n volumes in total, and each volume has a different thickness. Taro likes this novel so much that he wants to buy a bookshelf dedicated to it. However, if you put a large bookshelf in the room, it will be quite small, so you have to devise ...
Step 1: To minimize the width of the bookshelf, we can employ an exhaustive search algorithm to find the minimum width. Step 2: We can iteratively narrow down the search space using binary search. Step 3: We'll aim to check whether it's possible to allocate novels to columns such that the width is minimized given ce...
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ea1c4ce242f4a18755f2706e738c941eeebc27e754fd95c8096ec01425ebd871
Coding
codecontest
Write Python code to solve the task. Taro is addicted to a novel. The novel has n volumes in total, and each volume has a different thickness. Taro likes this novel so much that he wants to buy a bookshelf dedicated to it. However, if you put a large bookshelf in the room, it will be quite small, so you have to devise ...
Step 1: The problem requires finding the minimum width of the bookshelf that can accommodate all volumes of the novel while minimizing the width in m columns. Step 2: To solve this problem, we need to find a method to divide the n volumes into m columns to minimize the width of the bookshelf. Step 3: We can use a bi...
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ea1c4ce242f4a18755f2706e738c941eeebc27e754fd95c8096ec01425ebd871
Coding
codecontest
Write Python code to solve the task. Taro is addicted to a novel. The novel has n volumes in total, and each volume has a different thickness. Taro likes this novel so much that he wants to buy a bookshelf dedicated to it. However, if you put a large bookshelf in the room, it will be quite small, so you have to devise ...
Step 1: The problem requires us to minimize the width of the bookshelf to accommodate all volumes in order from one volume. Step 2: We need to consider the total volume of each shelf and distribute the novels in each shelf in ascending order. Step 3: We can use a binary search approach to find the minimum width of t...
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ea1c4ce242f4a18755f2706e738c941eeebc27e754fd95c8096ec01425ebd871
Coding
codecontest
Write Python code to solve the task. Eugene likes working with arrays. And today he needs your help in solving one challenging task. An array c is a subarray of an array b if c can be obtained from b by deletion of several (possibly, zero or all) elements from the beginning and several (possibly, zero or all) elements...
Step 1: The problem asks to calculate the number of nonempty good subarrays of a given array. Step 2: A good subarray can be obtained from the given array by deletion of several (possibly, zero or all) elements from the beginning and several (possibly, zero or all) elements from the end. Step 3: We can utilize the p...
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5ade696bd3f6a8c56f27e54ec53a82b7fe35e80875bbb35e5dad1d00590e56ab
Coding
codecontest
Write Python code to solve the task. Eugene likes working with arrays. And today he needs your help in solving one challenging task. An array c is a subarray of an array b if c can be obtained from b by deletion of several (possibly, zero or all) elements from the beginning and several (possibly, zero or all) elements...
Step 1: The problem requires identifying and counting the number of good subarrays in an input array. Step 2: We can approach the problem by iterating through the input array and creating subarrays to check if their sum is nonzero. Step 3: We also need an efficient way to check for duplicate sums in the subarrays an...
3a8f4ba9f800d425b224b17388edbb71ed4dc5318a73b82766edc072befab675_1_1
5ade696bd3f6a8c56f27e54ec53a82b7fe35e80875bbb35e5dad1d00590e56ab
Coding
codecontest
Write Python code to solve the task. Eugene likes working with arrays. And today he needs your help in solving one challenging task. An array c is a subarray of an array b if c can be obtained from b by deletion of several (possibly, zero or all) elements from the beginning and several (possibly, zero or all) elements...
Step 1: The problem requires finding the number of non-empty good subarrays of a given array. Step 2: We can calculate the prefix sums of the array to determine the sum of elements of any subarray. Step 3: By keeping track of the prefix sum values and their indices, we can find and count the good subarrays efficient...
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5ade696bd3f6a8c56f27e54ec53a82b7fe35e80875bbb35e5dad1d00590e56ab
Coding
codecontest
Write Python code to solve the task. C*++ language is quite similar to C++. The similarity manifests itself in the fact that the programs written in C*++ sometimes behave unpredictably and lead to absolutely unexpected effects. For example, let's imagine an arithmetic expression in C*++ that looks like this (expression...
Step 1: The problem requires calculating the maximum possible value of an arithmetic expression in C*++ language. Step 2: The expression can include a mix of arithmetic operators and expressions in the form "a++" or "++a" multiplied by a coefficient. Step 3: We need to simulate the calculation process by traversing ...
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f153e844732bc8e956c5f2fb666b807558ca3e675b673c55fe152c1bc2e24097
Coding
codecontest
Write Python code to solve the task. C*++ language is quite similar to C++. The similarity manifests itself in the fact that the programs written in C*++ sometimes behave unpredictably and lead to absolutely unexpected effects. For example, let's imagine an arithmetic expression in C*++ that looks like this (expression...
Step 1: The problem involves parsing an expression in the C*++ language, performing calculations based on the rules specified in the problem, and finding the maximum possible value of the expression. Step 2: We need to define the overall logic and code structure to achieve this. The solution will involve parsing the ...
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f153e844732bc8e956c5f2fb666b807558ca3e675b673c55fe152c1bc2e24097
Coding
codecontest
Write Python code to solve the task. C*++ language is quite similar to C++. The similarity manifests itself in the fact that the programs written in C*++ sometimes behave unpredictably and lead to absolutely unexpected effects. For example, let's imagine an arithmetic expression in C*++ that looks like this (expression...
Step 1: The given problem requires processing an arithmetic expression in C*++ language that involves incrementing the value of a variable 'a' and performing arithmetic operations. Step 2: We need to extract the components of the expression, process them, and calculate the maximum possible value of the expression. S...
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f153e844732bc8e956c5f2fb666b807558ca3e675b673c55fe152c1bc2e24097
Coding
codecontest
Write Python code to solve the task. Galois is one of the strongest chess players of Byteforces. He has even invented a new variant of chess, which he named «PawnChess». This new game is played on a board consisting of 8 rows and 8 columns. At the beginning of every game some black and white pawns are placed on the bo...
Step 1: The goal is to determine the winner of the game based on the initial disposition of the board and the rules of the game. Step 2: We need to keep track of the positions of the pawns and how many steps they need to reach their respective goals. Step 3: We can iterate through each column and determine the posit...
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78ef50808ae147c3900d401c660ad9dce168d622e61583ac67b7a39296be8e75
Coding
codecontest
Write Python code to solve the task. Galois is one of the strongest chess players of Byteforces. He has even invented a new variant of chess, which he named «PawnChess». This new game is played on a board consisting of 8 rows and 8 columns. At the beginning of every game some black and white pawns are placed on the bo...
Step 1: The problem asks us to determine who wins the PawnChess game given the initial board disposition. Step 2: We can start by reading the board description into a 2D array or list in order to represent the chess board. Step 3: Then, we need to iterate through the columns of the board to check for the positions o...
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78ef50808ae147c3900d401c660ad9dce168d622e61583ac67b7a39296be8e75
Coding
codecontest
Write Python code to solve the task. Galois is one of the strongest chess players of Byteforces. He has even invented a new variant of chess, which he named «PawnChess». This new game is played on a board consisting of 8 rows and 8 columns. At the beginning of every game some black and white pawns are placed on the bo...
Step 1: To solve this problem, we need to determine who wins the game by analyzing the board configuration based on the given rules and valid movements for each player. Step 2: We need to iterate through each column of the board to check the positions of the pawns and determine the minimum number of moves required fo...
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78ef50808ae147c3900d401c660ad9dce168d622e61583ac67b7a39296be8e75
Coding
codecontest
Write Python code to solve the task. Vanya smashes potato in a vertical food processor. At each moment of time the height of the potato in the processor doesn't exceed h and the processor smashes k centimeters of potato each second. If there are less than k centimeters remaining, than during this second processor smash...
Step 1: To solve this problem, we need to simulate the process of smashing the potatoes in the food processor. Step 2: We will iterate through the pieces of potato and keep track of the height of the potato in the processor. Step 3: We also need to consider the height and smashing speed of the food processor while i...
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e2ad64c501bdd08ef3294ab1f8eee91c64f878e4c0f81a1646e788e9a6c94654
Coding
codecontest
Write Python code to solve the task. Vanya smashes potato in a vertical food processor. At each moment of time the height of the potato in the processor doesn't exceed h and the processor smashes k centimeters of potato each second. If there are less than k centimeters remaining, than during this second processor smash...
Step 1: The solution needs to determine the amount of time required to smash all the potatoes in the processor. Step 2: To solve this, we need to iterate over each potato piece, checking if there is enough space in the processor for the piece. Step 3: If not, we calculate the remaining time to smash the potato and a...
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e2ad64c501bdd08ef3294ab1f8eee91c64f878e4c0f81a1646e788e9a6c94654
Coding
codecontest
Write Python code to solve the task. Vanya smashes potato in a vertical food processor. At each moment of time the height of the potato in the processor doesn't exceed h and the processor smashes k centimeters of potato each second. If there are less than k centimeters remaining, than during this second processor smash...
Step 1: The problem requires calculating the amount of time it takes for all the pieces of potato to be smashed in a vertical food processor. Step 2: We need to consider the height of the food processor, the amount of potato being smashed each second, and the sizes of each piece of potato. Step 3: The logic of the c...
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e2ad64c501bdd08ef3294ab1f8eee91c64f878e4c0f81a1646e788e9a6c94654
Coding
codecontest
Write Python code to solve the task. The flag of Berland is such rectangular field n × m that satisfies following conditions: * Flag consists of three colors which correspond to letters 'R', 'G' and 'B'. * Flag consists of three equal in width and height stripes, parralel to each other and to sides of the flag. E...
Step 1: The problem requires us to check whether the field corresponds to the correct flag of Berland. To solve this problem, we need to follow the given conditions such as the number of stripes, the usage of each color in exactly one stripe, and the parallelism of the stripes to each other. Step 2: We can start by r...
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ccb438e5953eee538e7840d018b64f0e9cca179614d30969c537eb0045721e8d
Coding
codecontest
Write Python code to solve the task. The flag of Berland is such rectangular field n × m that satisfies following conditions: * Flag consists of three colors which correspond to letters 'R', 'G' and 'B'. * Flag consists of three equal in width and height stripes, parralel to each other and to sides of the flag. E...
Step 1: The problem requires validating whether a given field corresponds to a correct flag of Berland which consists of three colors in three equal stripes parallel to each other and to the sides of the flag. Step 2: To solve this, we need to check if the input field meets the conditions, such as each stripe having ...
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ccb438e5953eee538e7840d018b64f0e9cca179614d30969c537eb0045721e8d
Coding
codecontest
Write Python code to solve the task. The flag of Berland is such rectangular field n × m that satisfies following conditions: * Flag consists of three colors which correspond to letters 'R', 'G' and 'B'. * Flag consists of three equal in width and height stripes, parralel to each other and to sides of the flag. E...
Step 1: The given code seems to be attempting to solve the problem by defining a function to check if a given flag corresponds to the correct flag of Berland. Step 2: The function 'go' seems to check the validity of the flag based on certain conditions. Step 3: The code also reads the input and then calls the 'go' f...
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ccb438e5953eee538e7840d018b64f0e9cca179614d30969c537eb0045721e8d
Coding
codecontest
Write Python code to solve the task. Iahub is a big fan of tourists. He wants to become a tourist himself, so he planned a trip. There are n destinations on a straight road that Iahub wants to visit. Iahub starts the excursion from kilometer 0. The n destinations are described by a non-negative integers sequence a1, a2...
Step 1: To calculate the average travel distance, we need to consider all possible routes that Iahub can take. Step 2: We'll start by determining the possible routes and calculating the total distance traveled for each route. Step 3: Once we have calculated the total distance traveled for all routes, we can find the...
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af48e81ab8cb30e354a4604a240ca03fe9a14d90c393dcb7d31030f26c6c649b
Coding
codecontest
Write Python code to solve the task. Iahub is a big fan of tourists. He wants to become a tourist himself, so he planned a trip. There are n destinations on a straight road that Iahub wants to visit. Iahub starts the excursion from kilometer 0. The n destinations are described by a non-negative integers sequence a1, a2...
Step 1: To calculate the average travel distance for all routes, we can start by determining all possible routes and then calculate the total distance traveled for each route. Step 2: To find all possible routes, we can use permutations of the destinations and calculate the total distance traveled for each permutatio...
7d351d4c84d377678865599b53be378d9e5c81e8c136167ebdae17b358461431_1_1
af48e81ab8cb30e354a4604a240ca03fe9a14d90c393dcb7d31030f26c6c649b
Coding
codecontest
Write Python code to solve the task. Iahub is a big fan of tourists. He wants to become a tourist himself, so he planned a trip. There are n destinations on a straight road that Iahub wants to visit. Iahub starts the excursion from kilometer 0. The n destinations are described by a non-negative integers sequence a1, a2...
Step 1: We need to find the average number of kilometers that Iahub would walk by choosing a route to visit all destinations. Step 2: First, we should start by reading the input: the number of destinations and their distances. Step 3: Next, we need to compute all possible routes and the total distance for each route...
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af48e81ab8cb30e354a4604a240ca03fe9a14d90c393dcb7d31030f26c6c649b
Coding
codecontest
Write Python code to solve the task. In this problem, your task is to use ASCII graphics to paint a cardiogram. A cardiogram is a polyline with the following corners: <image> That is, a cardiogram is fully defined by a sequence of positive integers a1, a2, ..., an. Your task is to paint a cardiogram by given seque...
Step 1: To solve this problem, we need to create an algorithm that can draw a cardiogram using ASCII graphics based on the input sequence. Step 2: We should use the sequence ai to determine the coordinates and orientation of the line segments in the cardiogram. Step 3: To achieve this, we can initialize a grid with ...
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2cabee9a1dcf4440c753be20a72e440d15696f40400effa3c5e266364a3f61e1
Coding
codecontest
Write Python code to solve the task. In this problem, your task is to use ASCII graphics to paint a cardiogram. A cardiogram is a polyline with the following corners: <image> That is, a cardiogram is fully defined by a sequence of positive integers a1, a2, ..., an. Your task is to paint a cardiogram by given seque...
Step 1: This problem requires us to generate an ASCII representation of a cardiogram based on a given sequence of integers. Step 2: We need to understand the pattern of the cardiogram and the logic to form it based on the given sequence. Step 3: We also need to consider the logic for painting the cardiogram based on...
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2cabee9a1dcf4440c753be20a72e440d15696f40400effa3c5e266364a3f61e1
Coding
codecontest
Write Python code to solve the task. In this problem, your task is to use ASCII graphics to paint a cardiogram. A cardiogram is a polyline with the following corners: <image> That is, a cardiogram is fully defined by a sequence of positive integers a1, a2, ..., an. Your task is to paint a cardiogram by given seque...
Step 1: The problem is asking for a cardiogram to be painted based on a sequence of positive integers. Step 2: The cardiogram is determined by a series of positive integers representing the heights of sections in the shape. Step 3: We can start by parsing the input to get the sequence of integers. Step 4: Then, we ...
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2cabee9a1dcf4440c753be20a72e440d15696f40400effa3c5e266364a3f61e1