task stringclasses 4
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values | instruction stringlengths 66 14k | response stringlengths 13 8.89k | id stringlengths 68 68 | parent_id stringlengths 64 64 |
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Coding | codecontest | Write Python code to solve the task.
After setting up the area and his toys. Chandu is up for playing his very first game. His first game is played on a N X N board with some initial stones placed on each cell. He can move each stone in all four direction i.e up,down, left or right. His target of the game is to move a... | Step 1: We need to find the minimum number of moves to move all stones to any one of the four corners.
Step 2: We can first calculate the distance of each stone from the four corners.
Step 3: Then for each stone, we can find the minimum distance to any corner and sum them up to get the total minimum number of moves.... | e29f817d00e8746db7352e871cb30b5b0d2dfbf22b06a0c6f6eb49847130d105_1_1 | ae6858a01d9aa4d551164f743d9b4f5e7e1c1e99a72ff9eeb309c8501e868a65 |
Coding | codecontest | Write Python code to solve the task.
As of now you have registered for IndiaHacks 2016 which is about to begin and you want to go to the venue to participate and the map is in the form of matrix. Consider an NXN matrix on which the possible moves from a given block (i,j), is either one upward (i+1, j), or one rightward... | Step 1: We need to find the number of ways to reach from block [a][b] to block [c][d] with the given constraints.
Step 2: We can solve this problem using dynamic programming since we can reach a block [i][j] from either block [i+1][j], [i][j+1], or [i+1][j+1].
Step 3: We can create a function to calculate the number... | 3975e76e86296f4907613083d6de86c9116f6cf22866a997fc11b77ba4deb2a7_1_1 | 67a62ef24e7316481ed01a5bdb7f3593f0975cb0ea3b6504bb05258de9c58fa5 |
Coding | codecontest | Write Python code to solve the task.
As of now you have registered for IndiaHacks 2016 which is about to begin and you want to go to the venue to participate and the map is in the form of matrix. Consider an NXN matrix on which the possible moves from a given block (i,j), is either one upward (i+1, j), or one rightward... | Step 1: We need to find the number of ways to reach from block [a][b] to block [c][d] in the given matrix.
Step 2: This is a classic problem that can be solved using dynamic programming to store the number of ways to reach each block from the starting block.
Step 3: We can use a 2D array to store the number of ways ... | 7fad56e1f0463a9c4aac731243db4f770ca18ac90dd85362b3b3e699d832cf4d_1_1 | 67a62ef24e7316481ed01a5bdb7f3593f0975cb0ea3b6504bb05258de9c58fa5 |
Coding | codecontest | Write Python code to solve the task.
You are given four integers n, c_0, c_1 and h and a binary string s of length n.
A binary string is a string consisting of characters 0 and 1.
You can change any character of the string s (the string should be still binary after the change). You should pay h coins for each change.... | Step 1: We need to calculate the minimum number of coins needed to buy the string, considering the costs of buying each character and the cost of changing characters.
Step 2: We can iterate through the binary string and calculate the cost of changing 0s to 1s and 1s to 0s, then compare it to the cost of just buying t... | d57ef19dfa402e387e0ac3dee3f4a5eb3d1674cfdadd0679d31fdab1e4d745a3_1_1 | cce67a636995cedfeee193331e4329bd182a53f05ab5ab181bd61d019c513c9a |
Coding | codecontest | Write Python code to solve the task.
You are given four integers n, c_0, c_1 and h and a binary string s of length n.
A binary string is a string consisting of characters 0 and 1.
You can change any character of the string s (the string should be still binary after the change). You should pay h coins for each change.... | Step 1: We need to find the minimum number of coins needed to buy the binary string, taking into account the cost of buying each character and the cost of changing characters.
Step 2: We can approach this problem by iterating through the binary string and calculating the cost of buying each character vs. the cost of ... | 5747f47708e812caa12e06169f00b4988437311caa2b7b2ce2b06473db450965_1_1 | cce67a636995cedfeee193331e4329bd182a53f05ab5ab181bd61d019c513c9a |
Coding | codecontest | Write Python code to solve the task.
Takahashi and Aoki will play a game using a grid with H rows and W columns of square cells. There are N obstacles on this grid; the i-th obstacle is at (X_i,Y_i). Here, we represent the cell at the i-th row and j-th column (1 \leq i \leq H, 1 \leq j \leq W) by (i,j). There is no obs... | Step 1: We need to simulate the game where Takahashi and Aoki take turns moving the piece in the grid.
Step 2: We also need to keep track of the obstacles in the grid and the position of the piece.
Step 3: We can start by defining a function to check if a cell is a valid move for Takahashi or Aoki based on their pos... | 92bcf31dbf2f4e111b6f9a12476e17c99fc17824588dbe2779390f843749a413_1_1 | 5d820eaf8ea35a53546cf239d16b993dbfcea2204da297dc88a6b810efec7ee4 |
Coding | codecontest | Write Python code to solve the task.
Takahashi and Aoki will play a game using a grid with H rows and W columns of square cells. There are N obstacles on this grid; the i-th obstacle is at (X_i,Y_i). Here, we represent the cell at the i-th row and j-th column (1 \leq i \leq H, 1 \leq j \leq W) by (i,j). There is no obs... | Step 1: We need to simulate the game and keep track of the movements of the piece.
Step 2: We can start by creating a function to determine all possible movements of the piece given its current position and the obstacles on the grid.
Step 3: Then we can simulate the game by iterating through the possible movements a... | 3a3216a74e8c8e5a8a93d7260938acdd9d4a4f6726ed84b41802ffde1dc451fc_1_1 | 5d820eaf8ea35a53546cf239d16b993dbfcea2204da297dc88a6b810efec7ee4 |
Coding | codecontest | Write Python code to solve the task.
Polycarp loves geometric progressions very much. Since he was only three years old, he loves only the progressions of length three. He also has a favorite integer k and a sequence a, consisting of n integers.
He wants to know how many subsequences of length three can be selected fr... | Step 1: To solve this problem, we need to iterate through the input sequence and count the number of subsequences of length three that form a geometric progression with the given common ratio k.
Step 2: We can achieve this by using nested loops to iterate through all possible combinations of three elements from the s... | ef70120c739d36a688a3804ba6740fc4385221f3a1373f46a00d1f9084e5c01f_1_1 | 285ede0ac49e7a1f94a6319405f6140a5c019352c4954bb349741db7a2d702fd |
Coding | codecontest | Write Python code to solve the task.
Polycarp loves geometric progressions very much. Since he was only three years old, he loves only the progressions of length three. He also has a favorite integer k and a sequence a, consisting of n integers.
He wants to know how many subsequences of length three can be selected fr... | Step 1: We need to find all the subsequences of length three that form a geometric progression with common ratio k.
Step 2: We can start by creating a function to calculate the number of subsequence of length three that form a geometric progression with common ratio k.
Step 3: Then we can iterate through the input s... | 13f942f89a689106c71ee79d48b4ed1ff7b0d59f9163a22f9292fd695b44657f_1_1 | 285ede0ac49e7a1f94a6319405f6140a5c019352c4954bb349741db7a2d702fd |
Coding | codecontest | Write Python code to solve the task.
Masha wants to open her own bakery and bake muffins in one of the n cities numbered from 1 to n. There are m bidirectional roads, each of whose connects some pair of cities.
To bake muffins in her bakery, Masha needs to establish flour supply from some storage. There are only k sto... | Step 1: We need to find the minimum cost of delivering flour from a storage city to a bakery city.
Step 2: We can start by creating a function to find the minimum cost of delivery for a given set of cities and roads.
Step 3: Then we can iterate through all possible combinations of bakery and storage cities to find t... | 2ba771ef76710d808f75a482fbc52b59abac720c4a8f56b33d9fde87722065e9_1_1 | 478f363b71d071e3f9749d48889062b5aafc9c14b3bd0de87516d7a78698c7ec |
Coding | codecontest | Write Python code to solve the task.
Masha wants to open her own bakery and bake muffins in one of the n cities numbered from 1 to n. There are m bidirectional roads, each of whose connects some pair of cities.
To bake muffins in her bakery, Masha needs to establish flour supply from some storage. There are only k sto... | Step 1:
The problem seems to involve finding the minimum cost of delivering flour from a storage facility to a bakery by choosing the optimal path. Based on the input, we first need to construct a graph representation of the cities and roads connecting them. Then we'll select cities where storage facilities are locate... | 6cf6dc2d7a97f360a2a7eb1af1d14cc9f7b743e2d16a9e53bcac7c9f638b3dfd_1_1 | 478f363b71d071e3f9749d48889062b5aafc9c14b3bd0de87516d7a78698c7ec |
Coding | codecontest | Write Python code to solve the task.
<image>
Some time ago Slastyona the Sweetmaid decided to open her own bakery! She bought required ingredients and a wonder-oven which can bake several types of cakes, and opened the bakery.
Soon the expenses started to overcome the income, so Slastyona decided to study the sweets ... | Step 1: We need to find the maximum possible total value of all boxes with cakes.
Step 2: To do this, we can use dynamic programming to find the optimal solution.
Step 3: We can start by defining the subproblems and the relationships between them.
Step 4: We can then create a plan to implement the solution for this... | d5d9a94c53734d84740f1a3bcba0f892c20cb0cfc4ac871242cb656332b34122_1_1 | 5a10d7a039431c25c91a3de21edd32cad9d97d191d9a91cb4dca1ec4322935f5 |
Coding | codecontest | Write Python code to solve the task.
<image>
Some time ago Slastyona the Sweetmaid decided to open her own bakery! She bought required ingredients and a wonder-oven which can bake several types of cakes, and opened the bakery.
Soon the expenses started to overcome the income, so Slastyona decided to study the sweets ... | Step 1: The problem asks for the maximum total value of all boxes with cakes.
Step 2: We need to maximize the total value by putting different types of cakes in each box.
Step 3: We can iterate through all possible combinations of cakes to be included in each box and choose the combination that maximizes the total v... | 2dc29920a4a8b96c4c17242af0de60273caeed43cfb2575df6de8c2049671066_1_1 | 5a10d7a039431c25c91a3de21edd32cad9d97d191d9a91cb4dca1ec4322935f5 |
Coding | codecontest | Write Python code to solve the task.
Takayuki and Kazuyuki are good twins, but their behavior is exactly the opposite. For example, if Takayuki goes west, Kazuyuki goes east, and if Kazuyuki goes north, Takayuki goes south. Currently the two are in a department store and are in different locations. How can two people w... | Step 1: We need to find the shortest time until the two people meet while avoiding obstacles and staying within the grid.
Step 2: One approach to this problem is to use a breadth-first search (BFS) algorithm to find the shortest path.
Step 3: We can create a function to incrementally move Takayuki and Kazuyuki in op... | 92b9843c48f63a87b0504d812130458e169147d61d2e91c983d7b50e92b3f0ca_1_1 | 48a49312cc17e513ef8b6a3e9d67a8a86e999c1ab090d39338553f069f7fd1f6 |
Coding | codecontest | Write Python code to solve the task.
Takayuki and Kazuyuki are good twins, but their behavior is exactly the opposite. For example, if Takayuki goes west, Kazuyuki goes east, and if Kazuyuki goes north, Takayuki goes south. Currently the two are in a department store and are in different locations. How can two people w... | Step 1: To solve this problem, we need to implement a breadth-first search algorithm to find the shortest path for Takayuki and Kazuyuki to meet.
Step 2: We also need to consider the constraints of the grid, obstacles, and the maximum time allowed.
Step 3: We can create a function to perform the breadth-first search... | e7da531ff988376f65349ece2cb350e91ac91735f21babd0fd279b85903adbf9_1_1 | 48a49312cc17e513ef8b6a3e9d67a8a86e999c1ab090d39338553f069f7fd1f6 |
Coding | codecontest | Write Python code to solve the task.
Theater stage is a rectangular field of size n × m. The director gave you the stage's plan which actors will follow. For each cell it is stated in the plan if there would be an actor in this cell or not.
You are to place a spotlight on the stage in some good position. The spotlight... | Step 1: To find the number of good positions for placing the spotlight, we need to iterate through each cell in the stage and check if it satisfies the conditions for being a good position.
Step 2: We can start by creating a function to check if a position is good based on the spotlight's placement and direction.
Ste... | 5d87d2dd9b4fa7c87e512577e350d646c700b59b9c222ed916b351cd77ac883e_1_1 | fa82fb5095a3ae3112c36a651f5d2dd00a65252cc3acf1ca7fca033ec39e48b2 |
Coding | codecontest | Write Python code to solve the task.
Theater stage is a rectangular field of size n × m. The director gave you the stage's plan which actors will follow. For each cell it is stated in the plan if there would be an actor in this cell or not.
You are to place a spotlight on the stage in some good position. The spotlight... | Step 1: We need to iterate through each cell in the stage and check if it is a good position for placing the spotlight.
Step 2: A good position is one where there are no actors in that cell and at least one actor in the direction the spotlight projects.
Step 3: We can consider each cell and project light in the four... | 56f669c6174e2d0bc42642186e1053da32c992a70d0ca3a256d2a8d2b2e996c9_1_1 | fa82fb5095a3ae3112c36a651f5d2dd00a65252cc3acf1ca7fca033ec39e48b2 |
Coding | codecontest | Write Python code to solve the task.
The stardate is 1983, and Princess Heidi is getting better at detecting the Death Stars. This time, two Rebel spies have yet again given Heidi two maps with the possible locations of the Death Star. Since she got rid of all double agents last time, she knows that both maps are corre... | Step 1: We need to find an M x M section in the first map that is equal to a section in the second map.
Step 2: We can start by iterating through each row and column of the first map to find a matching M x M section in the second map.
Step 3: To do this, we can use nested loops to iterate through each possible M x M... | df9b8378893cffbe650313e210138f3bb94b5a0249b77e84830b2892af7c568a_1_1 | ee59e2a0e08d88ff5d183e96c8a29a92891d42ef18629dceabe998fc562531da |
Coding | codecontest | Write Python code to solve the task.
The stardate is 1983, and Princess Heidi is getting better at detecting the Death Stars. This time, two Rebel spies have yet again given Heidi two maps with the possible locations of the Death Star. Since she got rid of all double agents last time, she knows that both maps are corre... | Step 1: We need to find a matching M x M section in the two maps.
Step 2: We can iterate through the first map and compare each M x M section with the second map to find a match.
Step 3: We should also consider the constraints and ensure that the solution handles edge cases, such as when there are multiple matches.
... | 0ca0b97c6dcfe885973985710dbfd9ef11a2e4c173e8b17941d342f70a1e0e72_1_1 | ee59e2a0e08d88ff5d183e96c8a29a92891d42ef18629dceabe998fc562531da |
Coding | codecontest | Write Python code to solve the task.
For the given sequence with n different elements find the number of increasing subsequences with k + 1 elements. It is guaranteed that the answer is not greater than 8·1018.
Input
First line contain two integer values n and k (1 ≤ n ≤ 105, 0 ≤ k ≤ 10) — the length of sequence and ... | Step 1: We need to find the number of increasing subsequences with k+1 elements in a given sequence.
Step 2: We can use dynamic programming to solve this problem by keeping track of the number of increasing subsequences ending at each element.
Step 3: Then, we can use this information to build the solution for large... | e535f96b50e240e9c916ad9b82be0973912f59b89681a300b2f0121185c8bc6a_1_1 | d0472307d7b471e6e5500f215ade2526cc361ebdc27a2e9d7c37feff8840ee02 |
Coding | codecontest | Write Python code to solve the task.
For the given sequence with n different elements find the number of increasing subsequences with k + 1 elements. It is guaranteed that the answer is not greater than 8·1018.
Input
First line contain two integer values n and k (1 ≤ n ≤ 105, 0 ≤ k ≤ 10) — the length of sequence and ... | Step 1: We need to find the number of increasing subsequences with k + 1 elements in the given sequence.
Step 2: We can approach this problem by using dynamic programming to keep track of the number of increasing subsequences ending at each element.
Step 3: We can start by creating a function to calculate the number... | c779187292806ffac7dff0abfbb325b6781a58d360806707c31cd91b1a39b5bf_1_1 | d0472307d7b471e6e5500f215ade2526cc361ebdc27a2e9d7c37feff8840ee02 |
Coding | codecontest | Write Python code to solve the task.
Did you ever hear about 'crossing the bridge noodle' ? Let me tell you that it's not some kind of bridge made of noodles. It's a dish, a kind of rice noodle soup. Mr.Ping makes the best noodle soup and his son Po is eagerly waiting for the user reviews in his father's blog. Users ca... | Step 1: We need to keep track of the total score and the number of users who have voted at least once.
Step 2: We can start by creating a function to update the total score based on Po's vote and check the minimum number of users who could have possibly voted.
Step 3: Then we can iterate through the sequence of clic... | dc39bdb10ebfd267f9eb2ffca42fc3159bc113c189503fbe0a4b260165363965_1_1 | 0b1c3d5780d08daa1c8d77491b796af300d9db52f49c278860ee59e047ab4b82 |
Coding | codecontest | Write Python code to solve the task.
Did you ever hear about 'crossing the bridge noodle' ? Let me tell you that it's not some kind of bridge made of noodles. It's a dish, a kind of rice noodle soup. Mr.Ping makes the best noodle soup and his son Po is eagerly waiting for the user reviews in his father's blog. Users ca... | Step 1: This problem involves processing a sequence of votes made by Po and determining the minimum number of other users that could have possibly voted at least once.
Step 2: We need to keep track of the score after each of Po's clicks and update the minimum number of users accordingly.
Step 3: The input format con... | 5af42144d9c627b19c68fe53228c4b744ec7eccd5215fe7e7ec0a9a3dffd3a50_1_1 | 0b1c3d5780d08daa1c8d77491b796af300d9db52f49c278860ee59e047ab4b82 |
Coding | codecontest | Write Python code to solve the task.
Let's call an undirected graph of n vertices p-interesting, if the following conditions fulfill:
* the graph contains exactly 2n + p edges;
* the graph doesn't contain self-loops and multiple edges;
* for any integer k (1 ≤ k ≤ n), any subgraph consisting of k vertices con... | Step 1: We need to generate a graph consisting of n vertices that fulfills the conditions of being p-interesting.
Step 2: The graph must have exactly 2n + p edges and must not contain self-loops or multiple edges.
Step 3: For any subgraph consisting of k vertices, it must contain at most 2k + p edges.
Step 4: We ca... | 104226c464f18552873fa126939b4e4da65fbe72eba16c18aa47b3433752b4d4_1_1 | bf37408f3837f2f46811b910301292e2ddb2e0d077e1d16a7aab9f1a7d296ff7 |
Coding | codecontest | Write Python code to solve the task.
Let's call an undirected graph of n vertices p-interesting, if the following conditions fulfill:
* the graph contains exactly 2n + p edges;
* the graph doesn't contain self-loops and multiple edges;
* for any integer k (1 ≤ k ≤ n), any subgraph consisting of k vertices con... | Step 1: We need to create a graph that satisfies the given conditions, with a specific number of vertices and interest value.
Step 2: We can start by understanding the conditions and how they affect the structure of the graph.
Step 3: Then we can devise a plan to create the graph based on the input values of n and p... | 24d25a20e5ef593a5a6bb48ceb6d70a40608c1084ab4adbd4d68d7a4a80bc39c_1_1 | bf37408f3837f2f46811b910301292e2ddb2e0d077e1d16a7aab9f1a7d296ff7 |
Coding | codecontest | Write Python code to solve the task.
Sherlock is following N criminals, which are right now in a 2D grid. Each criminal at t=0, decides to move in certain fixed direction. Each criminal moves with same speed. These fixed directions are North, East, West and South. Two or more criminals, however, vanish whenever they m... | Step 1: To solve this problem, we need to track the positions and directions of the criminals and determine whether they will meet at any point.
Step 2: We can create a function to simulate the movement of the criminals and check for collisions.
Step 3: We should also consider speeding up the simulation, as it could... | d92d2834ad1924aaa1a8964f2e0f813e7e1896ed0590156c2f7eb29a0450fc85_1_1 | 695bd8a652d5a86b2e563d7aa39f327f3b2e710549c65bea58ef912b603bad3f |
Coding | codecontest | Write Python code to solve the task.
Sherlock is following N criminals, which are right now in a 2D grid. Each criminal at t=0, decides to move in certain fixed direction. Each criminal moves with same speed. These fixed directions are North, East, West and South. Two or more criminals, however, vanish whenever they m... | Step 1: We need to simulate the movements of the criminals in a 2D grid and find out the final number of criminals left at t=infinity.
Step 2: We can start by creating a function to calculate the final position of a criminal based on their initial position and direction.
Step 3: Then we can simulate the movements of... | 4efb0f9a2e45f6a8818189c453c4809929b52908f06061e5350cfe0e5010377e_1_1 | 695bd8a652d5a86b2e563d7aa39f327f3b2e710549c65bea58ef912b603bad3f |
Coding | codecontest | Write Python code to solve the task.
Sugoroku
problem
JOI is playing sugoroku alone. There are N squares in a straight line in this sugoroku, and each has a movement instruction written on it. The starting point is the 1st square and the goal is the Nth square. JOI repeats the following until he reaches the goal.
Ro... | Step 1: We need to create a program that simulates JOI playing sugoroku and outputs the number of dice rolls needed to reach the goal.
Step 2: We can start by reading the input for each dataset, including the number of squares, the movement instructions, and the dice rolls.
Step 3: We then simulate JOI's movement ba... | abab5f11eb8b292b457e53508fe597fc8c9bd560992d1202862ff470678c826a_1_1 | ac68c44b558ca642e0eab4d3b5d94e1ccc7f9fbcc07293b4b2cdea1a9b769373 |
Coding | codecontest | Write Python code to solve the task.
Sugoroku
problem
JOI is playing sugoroku alone. There are N squares in a straight line in this sugoroku, and each has a movement instruction written on it. The starting point is the 1st square and the goal is the Nth square. JOI repeats the following until he reaches the goal.
Ro... | Step 1: The objective of the problem is to determine the number of times the dice are rolled to reach the goal on a sugoroku board given the instructions for each square and the number of dice rolls.
Step 2: We are given multiple datasets, with each dataset having two integers N and M to represent the number of squar... | ddd52ab98611cb6164c953e841b369be7859f4aaee238895ad67b1a2d06cef1f_1_1 | ac68c44b558ca642e0eab4d3b5d94e1ccc7f9fbcc07293b4b2cdea1a9b769373 |
Coding | codecontest | Write Python code to solve the task.
Suppose you have two points p = (x_p, y_p) and q = (x_q, y_q). Let's denote the Manhattan distance between them as d(p, q) = |x_p - x_q| + |y_p - y_q|.
Let's say that three points p, q, r form a bad triple if d(p, r) = d(p, q) + d(q, r).
Let's say that an array b_1, b_2, ..., b_m ... | Step 1: To calculate the number of good subarrays of array a, I will need to iterate through all possible subarrays and check if they form a bad triple.
Step 2: To do this, I will first get the input for the array length and the array elements. Then I will iterate through all possible subarrays.
Step 3: For each sub... | 6d3ba197694fd7dbe87a18a1288e4e99111877afb2c7753c0d509177a54f4b55_1_1 | 9462cf1c6018938762de9c5085309f4a2c91b3c173828621fb59a0e29782b731 |
Coding | codecontest | Write Python code to solve the task.
Suppose you have two points p = (x_p, y_p) and q = (x_q, y_q). Let's denote the Manhattan distance between them as d(p, q) = |x_p - x_q| + |y_p - y_q|.
Let's say that three points p, q, r form a bad triple if d(p, r) = d(p, q) + d(q, r).
Let's say that an array b_1, b_2, ..., b_m ... | Step 1: The problem can be solved using brute force approach.
Step 2: We need to calculate Manhattan distance between each pair of points p and q to check if they form a bad triple.
Step 3: For each point p, we compute the distance to all points to its right, and then use these distances to update the current number... | ce1a778013c37228f20b2d4ac1255af557fbd28769db86e387bbac5cb89b61cd_1_1 | 9462cf1c6018938762de9c5085309f4a2c91b3c173828621fb59a0e29782b731 |
Coding | codecontest | Write Python code to solve the task.
Boboniu likes playing chess with his employees. As we know, no employee can beat the boss in the chess game, so Boboniu has never lost in any round.
You are a new applicant for his company. Boboniu will test you with the following chess question:
Consider a n× m grid (rows are num... | Step 1: We need to find a solution to visit each cell in the grid exactly once using the rook movement of the chess piece.
Step 2: Given the constraints, we can guarantee that a solution exists.
Step 3: We can start by moving the chess piece row by row, visiting each column in order. Then move to the next row and vi... | cb3e840407b408a0da37653181fa1a0ce0878fb928c5dee7e93e04d7ed1d6194_1_1 | 54b0fd08185095c6ca819c41cd4be98a2ed1107e6aeb5fcb71bac43022e27f04 |
Coding | codecontest | Write Python code to solve the task.
Boboniu likes playing chess with his employees. As we know, no employee can beat the boss in the chess game, so Boboniu has never lost in any round.
You are a new applicant for his company. Boboniu will test you with the following chess question:
Consider a n× m grid (rows are num... | Step 1: The problem requires visiting each cell exactly once, starting from the given initial position.
Step 2: The first goal is to navigate through the complete row and column of the initial position.
Step 3: Then navigate through the rest of the grid in a zigzag pattern, visiting each cell only once.
Step 4: The... | e201ce0145ff2d6e1827b8a273173adb85fda78eda81f5b3489866f66cfebc21_1_1 | 54b0fd08185095c6ca819c41cd4be98a2ed1107e6aeb5fcb71bac43022e27f04 |
Coding | codecontest | Write Python code to solve the task.
Let's call a string "s-palindrome" if it is symmetric about the middle of the string. For example, the string "oHo" is "s-palindrome", but the string "aa" is not. The string "aa" is not "s-palindrome", because the second half of it is not a mirror reflection of the first half.
<ima... | Step 1: We need to determine if a given string is symmetric about the middle of the string.
Step 2: We can start by defining a function to check if a string is s-palindrome.
Step 3: Then we can check each character of the string to see if it has a corresponding mirror-reflected character.
Step 4: We should consider... | e87c6a155ea436c360b5e54f5b8b58e2c414b242d4ade7b94c3e08f1b848b949_1_1 | 62cf016723267929a1e6ec574d3d8c06c736c2012975a9af873ef17eba15d1d4 |
Coding | codecontest | Write Python code to solve the task.
Let's call a string "s-palindrome" if it is symmetric about the middle of the string. For example, the string "oHo" is "s-palindrome", but the string "aa" is not. The string "aa" is not "s-palindrome", because the second half of it is not a mirror reflection of the first half.
<ima... | Step 1: To determine if a string is an "s-palindrome", we need to check if it is symmetric about the middle of the string. For odd-length strings, the middle character should be a valid character. For even-length strings, the middle two characters should be symmetric.
Step 2: We can iterate through the string and com... | 4544c3d8aea9b88d4b0dc2ae6916fda0c5ad74a1e0ca26dfc25c5ff98c043615_1_1 | 62cf016723267929a1e6ec574d3d8c06c736c2012975a9af873ef17eba15d1d4 |
Coding | codecontest | Write Python code to solve the task.
Vova's house is an array consisting of n elements (yeah, this is the first problem, I think, where someone lives in the array). There are heaters in some positions of the array. The i-th element of the array is 1 if there is a heater in the position i, otherwise the i-th element of ... | Step 1: Initially, we need to identify the ranges that each heater could warm up.
Step 2: It might be helpful to determine the minimum and maximum index of each range.
Step 3: Then we can use a greedy algorithm to select the minimum number of heaters such that each element is warmed up by at least one heater.
Step 4... | c8bdc9f7d050c77694d44764d24c159ae9bc9c2382a4f47d51788c33ca46c35d_1_1 | dd52d5d8c663cd2654d182005ccf6a306691d01c1535b5044602c1b639cf77c7 |
Coding | codecontest | Write Python code to solve the task.
Vova's house is an array consisting of n elements (yeah, this is the first problem, I think, where someone lives in the array). There are heaters in some positions of the array. The i-th element of the array is 1 if there is a heater in the position i, otherwise the i-th element of ... | Step 1: To solve this problem, we need to find the minimum number of heaters needed to warm up the entire house.
Step 2: We can do this by iterating through the array and finding the unlit elements. Then we need to switch on heaters to warm up these unlit elements.
Step 3: We should use a while loop to continue find... | a5dd8b8b2bcd94414ae48f368da3c2b9389d5532d038e9b0eaa8ccac2e3703b9_1_1 | dd52d5d8c663cd2654d182005ccf6a306691d01c1535b5044602c1b639cf77c7 |
Coding | codecontest | Write Python code to solve the task.
At the beginning of the school year Berland State University starts two city school programming groups, for beginners and for intermediate coders. The children were tested in order to sort them into groups. According to the results, each student got some score from 1 to m points. We... | Step 1: To solve this problem, we need to iterate through the possible passing rates and calculate the sizes of the beginner and intermediate groups based on each passing rate.
Step 2: We will then check if the size of both groups falls within the specified range (x to y, inclusive) and return the passing rate if it ... | 0a61483194e418d9ae654654f73eb892b2e93523ebacba83a887e487204d2b9b_1_1 | 49945021aba640241196dc4fb37ba9190c0946b4e8becc942dd9f1473fbf7a84 |
Coding | codecontest | Write Python code to solve the task.
At the beginning of the school year Berland State University starts two city school programming groups, for beginners and for intermediate coders. The children were tested in order to sort them into groups. According to the results, each student got some score from 1 to m points. We... | Step 1: The problem requires us to pick a passing rate k from 1 to m that will split schoolchildren into two groups such that the size of each group is from x to y, inclusive.
Step 2: We need to calculate the number of schoolchildren passing the test for each k value and ensure that the group sizes meet the requireme... | 0a7648c49c527c00d37ca8290955a6ba23d2c8002194def101c1d7c0dd24c23d_1_1 | 49945021aba640241196dc4fb37ba9190c0946b4e8becc942dd9f1473fbf7a84 |
Coding | codecontest | Write Python code to solve the task.
Pandaland is a place full of strings. One day Panda visited Pandaland and get confused wether Pandaland is a lucky place or not. According to Panda a place is lucky if all the strings in that place follows the following property 'P' : -
P:A place is lucky if, for any string S, the ... | Step 1: We need to check if for any string S, the prefix of S should not be present in Pandaland.
Step 2: We can iterate through each string and check if the prefix of the current string is present in the rest of the strings.
Step 3: If the prefix of a string is present in any other string, then Pandaland is not luc... | ad3b644f0c8a0279c8a326139e4d0029b180c8af41a96959377071337f430aa2_1_1 | 764c69bf0e7d7606c3f4db4d31f41dfa5059310b7a57c506a2c08af78d3db4d9 |
Coding | codecontest | Write Python code to solve the task.
Pandaland is a place full of strings. One day Panda visited Pandaland and get confused wether Pandaland is a lucky place or not. According to Panda a place is lucky if all the strings in that place follows the following property 'P' : -
P:A place is lucky if, for any string S, the ... | Step 1: We need to determine if Pandaland is a lucky place by checking if all the strings follow the property 'P'.
Step 2: The property 'P' states that the prefix of any string should not be present in that place.
Step 3: We can accomplish this by checking each string against all the other strings to see if any of t... | c7f7d8d190db1974a40c51435f7caa3c284d12a11ac01f5e8c6df0eb8d54623c_1_1 | 764c69bf0e7d7606c3f4db4d31f41dfa5059310b7a57c506a2c08af78d3db4d9 |
Coding | codecontest | Write Python code to solve the task.
There are K blue balls and N-K red balls. The balls of the same color cannot be distinguished. Snuke and Takahashi are playing with these balls.
First, Snuke will arrange the N balls in a row from left to right.
Then, Takahashi will collect only the K blue balls. In one move, he c... | Step 1: We need to count the number of ways to arrange the N balls so that Takahashi will need exactly i moves to collect all the blue balls.
Step 2: We can start by calculating the number of ways to arrange the balls for each i, and then compute the result modulo 10^9+7.
Step 3: We should also consider the constrai... | 2e5d3334c026dd9b2ad25f1695af170967ccb1d89cf3be1f69928f608619c430_1_1 | 95b853e4a856bf9f4dabd26e8732811032e8292a638b3d4bc6c9b38add0d058a |
Coding | codecontest | Write Python code to solve the task.
There are K blue balls and N-K red balls. The balls of the same color cannot be distinguished. Snuke and Takahashi are playing with these balls.
First, Snuke will arrange the N balls in a row from left to right.
Then, Takahashi will collect only the K blue balls. In one move, he c... | Step 1: To solve this problem, we need to consider the number of ways to arrange the N balls in a row such that Takahashi will need exactly i moves to collect all the blue balls.
Step 2: We can use combinatorics to calculate the number of ways. We need to compute this for each i such that 1 ≤ i ≤ K.
Step 3: Addition... | f487070f9dd70a66789d48c816d380751db286d8de2734d36f73ed83e368ff2e_1_1 | 95b853e4a856bf9f4dabd26e8732811032e8292a638b3d4bc6c9b38add0d058a |
Coding | codecontest | Write Python code to solve the task.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their names are f_1, f_2, ..., f_n. Any file name contains between 1 and 8 characters, inclusive. All file names are... | Step 1: We need to implement a file suggestion feature that handles queries by counting the number of files containing the query string as a substring and suggesting any such file name.
Step 2: We can start by creating a function to count the number of files containing the query string as a substring and suggest any ... | 9cacb2b1f2d4d6373e91a1d52dc39cfce5e79409527995e17bf9d87de6294f61_1_1 | b14f2e06bb04b270ea6c2152ab21f7908d04b8b6678e92310eacc9adc9c292cc |
Coding | codecontest | Write Python code to solve the task.
Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature.
There are n files on hard drive and their names are f_1, f_2, ..., f_n. Any file name contains between 1 and 8 characters, inclusive. All file names are... | Step 1: We need to search for substrings within the file names and count the number of matches and suggest any file name that contains the substring.
Step 2: We can start by creating a function to find the number of matches and suggest a file name for a given query string.
Step 3: Then we can iterate through the que... | 965f9fb445feeb486d3f61cf1c2201829f14d5531e89596f0234e1c555ef9022_1_1 | b14f2e06bb04b270ea6c2152ab21f7908d04b8b6678e92310eacc9adc9c292cc |
Coding | codecontest | Write Python code to solve the task.
Rational numbers are numbers represented by ratios of two integers. For a prime number p, one of the elementary theorems in the number theory is that there is no rational number equal to √p. Such numbers are called irrational numbers. It is also known that there are rational numbers... | Step 1: We need to find two rational numbers x/y and u/v such that u/v < √p < x/y.
Step 2: First, we need to generate the set Qn of all rational numbers for a given n.
Step 3: Then, we need to find the two rational numbers that satisfy the conditions.
Step 4: We can start by generating the set Qn for a given n, and... | c2075607cfbb821fc203fa579a0a3d1b60c9c46ba1b21d2b9ee3c77e51f1bd56_1_1 | 5d08f1f746ac3a1fec3f95a72f7293c9eaf0ba1ca56c712ab95c679c0e73d7c7 |
Coding | codecontest | Write Python code to solve the task.
Rational numbers are numbers represented by ratios of two integers. For a prime number p, one of the elementary theorems in the number theory is that there is no rational number equal to √p. Such numbers are called irrational numbers. It is also known that there are rational numbers... | Step 1: We need to find two rational numbers x/y and u/v such that u/v < √p < x/y and there are no other elements of Qn between u/v and x/y, where Qn is the set of all rational numbers whose elements are represented by ratios of two positive integers both of which are less than or equal to n.
Step 2: We can start by ... | 8934d48d95fb47dcf99bee3e59ac389973d8ed94a3783d9f499366883dd6d3c3_1_1 | 5d08f1f746ac3a1fec3f95a72f7293c9eaf0ba1ca56c712ab95c679c0e73d7c7 |
Coding | codecontest | Write Python code to solve the task.
You are given a sequence of n pairs of integers: (a_1, b_1), (a_2, b_2), ... , (a_n, b_n). This sequence is called bad if it is sorted in non-descending order by first elements or if it is sorted in non-descending order by second elements. Otherwise the sequence is good. There are e... | Step 1: We need to calculate the number of permutations of size n such that after applying this permutation to the sequence s it turns into a good sequence.
Step 2: To solve this problem, we should consider generating all permutations of size n and checking if each permutation results in a good sequence when applied ... | bf54be6e4b87f5f513566e42c87ce58be175b3bb870cb61c86debae9d6a76f72_1_1 | caf585643cc34deb41d8298782cab3e47d7ec1d43e21e461c183783e13351857 |
Coding | codecontest | Write Python code to solve the task.
You are given a sequence of n pairs of integers: (a_1, b_1), (a_2, b_2), ... , (a_n, b_n). This sequence is called bad if it is sorted in non-descending order by first elements or if it is sorted in non-descending order by second elements. Otherwise the sequence is good. There are e... | Step 1: We need to find the number of permutations of size n such that after applying the permutation to the sequence, it turns into a good sequence.
Step 2: We can start by generating permutations and applying each permutation to the sequence to determine if it becomes a good sequence.
Step 3: We also need to check... | 6dcf7ec79004e40c904ceb41829a34fccebaabc33f1ddd69103c159e98aad8d7_1_1 | caf585643cc34deb41d8298782cab3e47d7ec1d43e21e461c183783e13351857 |
Coding | codecontest | Write Python code to solve the task.
You have decided to watch the best moments of some movie. There are two buttons on your player:
1. Watch the current minute of the movie. By pressing this button, you watch the current minute of the movie and the player automatically proceeds to the next minute of the movie.
... | Step 1: We need to find the minimum number of minutes of the movie we have to watch in order to watch all the best moments.
Step 2: We can start by iterating through each best moment and calculating the duration we need to watch.
Step 3: For each best moment, we need to calculate the difference between the current m... | db346ced8454e2defa6bbaed3453614f331f04b12056c2c4251c147eb2195f5c_1_1 | a1a22d22b812da3d65ddb81f86befd08ed83e6196fe8addb400523ffd95c3360 |
Coding | codecontest | Write Python code to solve the task.
You have decided to watch the best moments of some movie. There are two buttons on your player:
1. Watch the current minute of the movie. By pressing this button, you watch the current minute of the movie and the player automatically proceeds to the next minute of the movie.
... | Step 1: We need to find the minimum number of minutes of the movie we have to watch in order to watch all the best moments.
Step 2: We can start by iterating through the best moments and calculating the number of minutes we need to watch for each best moment.
Step 3: We also need to take into account the skipping of... | 8001db7be485024827f234b9ce2d9a0f96a9f3688f1ecbb9d0bd7f10f65e396d_1_1 | a1a22d22b812da3d65ddb81f86befd08ed83e6196fe8addb400523ffd95c3360 |
Coding | codecontest | Write Python code to solve the task.
One day n friends met at a party, they hadn't seen each other for a long time and so they decided to make a group photo together.
Simply speaking, the process of taking photos can be described as follows. On the photo, each photographed friend occupies a rectangle of pixels: the i... | Step 1: We need to calculate the minimum photo size for each friend's photo.
Step 2: The minimum photo size will be the sum of widths of all friends except for the i-th friend and the maximum height among all friends except for the i-th friend.
Step 3: We can start by creating a function to calculate the minimum pho... | 35d3c8cc5bb323718629e523493d91edacf1c7ff68bba07403332ab5def0abb2_1_1 | 739b388548f59f38bdcb181c2bfc93607db30bc65897c73ff1a10329d0ca3f12 |
Coding | codecontest | Write Python code to solve the task.
One day n friends met at a party, they hadn't seen each other for a long time and so they decided to make a group photo together.
Simply speaking, the process of taking photos can be described as follows. On the photo, each photographed friend occupies a rectangle of pixels: the i... | Step 1: To find the minimum size of each made photo, we need to consider the total width and maximum height of all the photographed friends for each photo.
Step 2: We can start by calculating the total size of the group photo for each friend individually, excluding that friend from the photo.
Step 3: Then, we need ... | 3b00a577d87dc78e863b18633a9ca643592bdf8bdeaee904a086dd4356d76e95_1_1 | 739b388548f59f38bdcb181c2bfc93607db30bc65897c73ff1a10329d0ca3f12 |
Coding | codecontest | Write Python code to solve the task.
In this problem you are to calculate the sum of all integers from 1 to n, but you should take all powers of two with minus in the sum.
For example, for n = 4 the sum is equal to - 1 - 2 + 3 - 4 = - 4, because 1, 2 and 4 are 20, 21 and 22 respectively.
Calculate the answer for t v... | Step 1: We need to calculate the sum of all integers from 1 to n, but excluding all powers of two with a minus sign in the sum.
Step 2: We can start by creating a function to calculate the sum of all integers from 1 to n.
Step 3: Then we can iterate through the powers of two and subtract them from the sum.
Step 4: ... | ae480cad296877db6a60463da4abffee5e71cc3f8c5b886a6c8a2b0f9dcfbc5a_1_1 | 6659a8b841dee2f6ff5175050562d9196d467af63bbc884ea0a2a7283a956f73 |
Coding | codecontest | Write Python code to solve the task.
In this problem you are to calculate the sum of all integers from 1 to n, but you should take all powers of two with minus in the sum.
For example, for n = 4 the sum is equal to - 1 - 2 + 3 - 4 = - 4, because 1, 2 and 4 are 20, 21 and 22 respectively.
Calculate the answer for t v... | Step 1: To solve this problem, we need to calculate the sum of all integers from 1 to n, while accounting for the powers of two with a minus sign.
Step 2: We can start by finding an efficient way to handle the powers of two with a minus sign and calculate the sum accordingly.
Step 3: We should also consider using a ... | 4fabf3d9d7e070abcc9efb8df5b8999e71ffaedc7c8a9e2bc8ad9a1cf6bc26e9_1_1 | 6659a8b841dee2f6ff5175050562d9196d467af63bbc884ea0a2a7283a956f73 |
Coding | codecontest | Write Python code to solve the task.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob has made a prediction of the rankings of e... | Step 1: To solve this problem, we need to find a permutation p that is consistent with the given array q.
Step 2: We can start by creating a function to find all possible permutations of p.
Step 3: Then we can iterate through the permutations and check if they match the given array q.
Step 4: If a matching permutat... | 240aeb2f751836acdc6c453c520388bfbf34c29371f0d849a1e8a7abff732f9c_1_1 | d39c1a3de7a368931217c5d3522679f1b0dedafbbc6f059758312f5d35336565 |
Coding | codecontest | Write Python code to solve the task.
Bob is an avid fan of the video game "League of Leesins", and today he celebrates as the League of Leesins World Championship comes to an end!
The tournament consisted of n (n ≥ 5) teams around the world. Before the tournament starts, Bob has made a prediction of the rankings of e... | Step 1: We need to find a permutation p that is consistent with the given array q.
Step 2: We can start by creating a function to find the permutation p based on the array q.
Step 3: We also need to consider how to rearrange the elements within each triple and the positions of the triples to get the permutation p.
... | e0928ce342d2d18edb6967b07ba98348a98f92fb3ebdb4660160185d9de8e100_1_1 | d39c1a3de7a368931217c5d3522679f1b0dedafbbc6f059758312f5d35336565 |
Coding | codecontest | Write Python code to solve the task.
The fundamental idea in the JPEG compression algorithm is to sort coeffi- cient of given image by zigzag path and encode it. In this problem, we don’t discuss about details of the algorithm, but you are asked to make simple pro- gram. You are given single integer N , and you must ou... | Step 1: To solve this problem, we can use a 2D array to represent the matrix and perform the zigzag scanning.
Step 2: We will need to keep track of the current position on the matrix and the direction of the movement (up or down).
Step 3: We need to handle the edge cases where the next position goes out of bounds or... | 7cf22ccfc683571d5e2d5ddc72b7894ef49968e38fe6b4398dfaea1280533ac9_1_1 | 127529fab2f7f9f8145b75cb2611f6b1581aba88f5ce09e17b39d14f6de0c27f |
Coding | codecontest | Write Python code to solve the task.
The fundamental idea in the JPEG compression algorithm is to sort coeffi- cient of given image by zigzag path and encode it. In this problem, we don’t discuss about details of the algorithm, but you are asked to make simple pro- gram. You are given single integer N , and you must ou... | Step 1: The problem requires us to implement a simple program to output the zigzag path on a matrix of size N by N, where the zigzag scanning starts at the upper-left corner and ends up at the bottom-right corner.
Step 2: We can start by creating a matrix of size N by N and filling it with the visited time for each e... | 87bce780bf856bde6d557b3370a15d7770d32a91ca6d358ea98dcaf418336c6e_1_1 | 127529fab2f7f9f8145b75cb2611f6b1581aba88f5ce09e17b39d14f6de0c27f |
Coding | codecontest | Write Python code to solve the task.
Many modern text editors automatically check the spelling of the user's text. Some editors even suggest how to correct typos.
In this problem your task to implement a small functionality to correct two types of typos in a word. We will assume that three identical letters together i... | Step 1: To solve this problem, we need to identify and remove the typos from the word.
Step 2: We need to consider two cases - three identical letters together and a couple of identical letters immediately followed by another couple of identical letters.
Step 3: We can start by creating a function to remove these ty... | d53a0a5c36ba4ba7378fb7acdaa56289ad001d70658a0f7ed2737cf40b545c30_1_1 | ef7fd9c4682dbe98df69990edb6397d0bf6f1d9db16baae3eb31f9c2c6fe351f |
Coding | codecontest | Write Python code to solve the task.
Many modern text editors automatically check the spelling of the user's text. Some editors even suggest how to correct typos.
In this problem your task to implement a small functionality to correct two types of typos in a word. We will assume that three identical letters together i... | Step 1: We need to identify the typos in the word and delete the minimum number of letters to correct the typos.
Step 2: We can create a function to check for the typos and delete the necessary letters to correct them.
Step 3: We should consider cases where there are multiple possible solutions and choose any valid ... | 1ac1844417ff9bae0dbcf2ef99b9899f41706fd3c45429eb7d97aacdaf9707bd_1_1 | ef7fd9c4682dbe98df69990edb6397d0bf6f1d9db16baae3eb31f9c2c6fe351f |
Coding | codecontest | Write Python code to solve the task.
You are given an array a consisting of 500000 integers (numbered from 1 to 500000). Initially all elements of a are zero.
You have to process two types of queries to this array:
* 1 x y — increase a_x by y;
* 2 x y — compute ∑_{i ∈ R(x, y)} a_i, where R(x, y) is the set of al... | Step 1: To process these queries, we need to keep track of an array and update its elements based on the queries.
Step 2: For query type 1, we update the value of a specific element in the array.
Step 3: For query type 2, we compute the sum of elements that satisfy a modular condition and return the result.
Step 4: ... | aea531c0204a9f3e4e31e2bdfba99369c05c54a555ffc9e14038b3865a9a7ef7_1_1 | 86f172856985001c9445b1d8b8d762f30c3582612fff1faac8aea66923fda03a |
Coding | codecontest | Write Python code to solve the task.
You are given an array a consisting of 500000 integers (numbered from 1 to 500000). Initially all elements of a are zero.
You have to process two types of queries to this array:
* 1 x y — increase a_x by y;
* 2 x y — compute ∑_{i ∈ R(x, y)} a_i, where R(x, y) is the set of al... | Step 1: We need to keep track of the elements in the array and be able to handle two types of queries: increase an element by a value and compute the sum of elements that satisfy a certain condition.
Step 2: We can start by creating a function to handle each type of query.
Step 3: For the first type of query, we sim... | 2fa790ebada50b68115bc47721d16b80f9ca7af92742913a2f82456b14a6be7e_1_1 | 86f172856985001c9445b1d8b8d762f30c3582612fff1faac8aea66923fda03a |
Coding | codecontest | Write Python code to solve the task.
You are given an array of positive integers. While there are at least two equal elements, we will perform the following operation. We choose the smallest value x that occurs in the array 2 or more times. Take the first two occurrences of x in this array (the two leftmost occurrences... | Step 1: We need to keep track of the occurrences of elements in the array and perform the given operation until there are no more equal elements.
Step 2: We can start by creating a function to find the smallest value that occurs in the array 2 or more times.
Step 3: Then we can perform the operation as described in ... | 0f24b402ffeca69a177acb98a011ac5a9cbd9d8fe5b50a2d3acf6977427a48cc_1_1 | e07c5b6aaf6160519b73b2b391a348147085052c45a1034650e1df4f22a9e5b5 |
Coding | codecontest | Write Python code to solve the task.
You are given an array of positive integers. While there are at least two equal elements, we will perform the following operation. We choose the smallest value x that occurs in the array 2 or more times. Take the first two occurrences of x in this array (the two leftmost occurrences... | Step 1: We need to repeatedly perform an operation on the array until there are no longer at least two equal elements.
Step 2: The operation involves finding the smallest value that occurs 2 or more times, summing the first two occurrences of that value, and replacing the left occurrence with the sum while removing t... | c16639a409f549f8eff64f5c2cefc9f7e3f41fb61419a922020e435eff5e6426_1_1 | e07c5b6aaf6160519b73b2b391a348147085052c45a1034650e1df4f22a9e5b5 |
Coding | codecontest | Write Python code to solve the task.
Appleman has n cards. Each card has an uppercase letter written on it. Toastman must choose k cards from Appleman's cards. Then Appleman should give Toastman some coins depending on the chosen cards. Formally, for each Toastman's card i you should calculate how much Toastman's cards... | Step 1: We need to find the maximum number of coins Toastman can get by choosing k cards from Appleman's cards.
Step 2: We can start by counting the number of cards with each letter.
Step 3: Then we can calculate the maximum number of coins Toastman can get by choosing k cards with the most common letters.
Step 4: ... | bad3281244bff669b32b4a905c74842bf1fe8b9db591d15de9d48f2c1e56da1b_1_1 | 174e016a49366e59430aaec817759fd57ebd58ccca6f97f189bb3d4e21a1a1ce |
Coding | codecontest | Write Python code to solve the task.
Appleman has n cards. Each card has an uppercase letter written on it. Toastman must choose k cards from Appleman's cards. Then Appleman should give Toastman some coins depending on the chosen cards. Formally, for each Toastman's card i you should calculate how much Toastman's cards... | Step 1: We need to calculate the maximum number of coins Toastman can get based on the cards chosen.
Step 2: We can start by counting the occurrences of each letter in the cards and then calculate the maximum number of coins based on the chosen cards.
Step 3: We should also consider sorting the letters to ensure we ... | 4348447e0de684c8f60bc608ddc3f067481e8dab733ef627fac9c056e02a40bc_1_1 | 174e016a49366e59430aaec817759fd57ebd58ccca6f97f189bb3d4e21a1a1ce |
Coding | codecontest | Write Python code to solve the task.
Micro's midsem exams are finally over. When they were going on, instead of studying he would spend time making list of things that he wanted to do after the exams. But, now when they are over, he has lost the list. He was feeling very low, so his roommate Naik gave him a game to kil... | Step 1: To maximize the fun number, we need to find the arrangement of blocks that produces the largest concatenated number.
Step 2: We can start by sorting the numbers in descending order and then concatenating them to find the maximum fun number.
Step 3: We should also consider edge cases, such as having numbers w... | 6495eca3c82aec682fa17af1c2eeae0d8cdcb19ff08f50f61598408379d5f8f7_1_1 | 5f4b3274fc752405d9cfabdfb718655c2f497080402dd7c56ecb8aa142b16938 |
Coding | codecontest | Write Python code to solve the task.
Micro's midsem exams are finally over. When they were going on, instead of studying he would spend time making list of things that he wanted to do after the exams. But, now when they are over, he has lost the list. He was feeling very low, so his roommate Naik gave him a game to kil... | Step 1: To maximize the Fun Number, we need to arrange the blocks in a way that produces the largest concatenated number.
Step 2: We can sort the blocks in descending order and then concatenate them to form the maximum Fun Number.
Step 3: After sorting, we can concatenate the numbers to form the maximum Fun Number.
... | 10c1868ffe98f8bf301f966e9c734c4d2d100d4b7799cdf842a34cf06423e5f5_1_1 | 5f4b3274fc752405d9cfabdfb718655c2f497080402dd7c56ecb8aa142b16938 |
Coding | codecontest | Write Python code to solve the task.
You are given two circles. Find the area of their intersection.
Input
The first line contains three integers x1, y1, r1 ( - 109 ≤ x1, y1 ≤ 109, 1 ≤ r1 ≤ 109) — the position of the center and the radius of the first circle.
The second line contains three integers x2, y2, r2 ( - 10... | Step 1: To find the area of intersection between two circles, we can use the formula for the area of a segment of a circle.
Step 2: First, we need to find the distance between the centers of the two circles.
Step 3: Then, we need to calculate the areas of the two segments formed by the intersection of the circles.
S... | ea090a37dcfd0225b97c10e6266cf36339aa676cb23ab071126edf435058995b_1_1 | a48b5253a02ce5e4bd256f945f33c18196e1d52678d62fa1226f2cc8627196f7 |
Coding | codecontest | Write Python code to solve the task.
You are given two circles. Find the area of their intersection.
Input
The first line contains three integers x1, y1, r1 ( - 109 ≤ x1, y1 ≤ 109, 1 ≤ r1 ≤ 109) — the position of the center and the radius of the first circle.
The second line contains three integers x2, y2, r2 ( - 10... | Step 1: To find the area of the intersection of two circles, we need to find the overlap area of the two circles
Step 2: We can use the formula to find the intersection area of two circles by considering the distance between the centers and the radii of the circles.
Step 3: We also need to consider the cases where t... | 7ef6ab1d10f3d29770980d647486036229405b909839b047f7659a0c8849a90e_1_1 | a48b5253a02ce5e4bd256f945f33c18196e1d52678d62fa1226f2cc8627196f7 |
Coding | codecontest | Write Python code to solve the task.
You have n distinct points on a plane, none of them lie on OY axis. Check that there is a point after removal of which the remaining points are located on one side of the OY axis.
Input
The first line contains a single positive integer n (2 ≤ n ≤ 105).
The following n lines conta... | Step 1: We need to check if there exists a point such that, after its removal, all the remaining points are located on one side of the OY axis.
Step 2: We can do this by checking the signs of the x-coordinates of the points.
Step 3: If all x-coordinates have the same sign (positive or negative), then the points are ... | 1b8cb11ec88adaae4d59961ac3d864c430877ee5056f6eecfb73a944935954f7_1_1 | 5de56bc0b37839061956ad22427040e4b0c7543e3813eb9960e9dc6e841bbc99 |
Coding | codecontest | Write Python code to solve the task.
You have n distinct points on a plane, none of them lie on OY axis. Check that there is a point after removal of which the remaining points are located on one side of the OY axis.
Input
The first line contains a single positive integer n (2 ≤ n ≤ 105).
The following n lines conta... | Step 1: We need to check if there is a point that can be removed such that all remaining points are located on one side of the OY axis.
Step 2: One approach is to iterate through each point and check if removing it leads to the remaining points being located on one side of the OY axis.
Step 3: We should also conside... | e403d37a0c113693194ab02748feb797ad42034758c0c17dd01dbb81ef9fe5f4_1_1 | 5de56bc0b37839061956ad22427040e4b0c7543e3813eb9960e9dc6e841bbc99 |
Coding | codecontest | Write Python code to solve the task.
Iahub likes chess very much. He even invented a new chess piece named Coder. A Coder can move (and attack) one square horizontally or vertically. More precisely, if the Coder is located at position (x, y), he can move to (or attack) positions (x + 1, y), (x–1, y), (x, y + 1) and (x,... | Step 1: We need to find the maximum number of Coders that can be placed on the chessboard so that no Coder attacks any other Coder.
Step 2: We can start by iterating through each cell of the chessboard and placing a Coder in each cell such that no Coder attacks any other Coder.
Step 3: We also need to consider the c... | d7faa6d1dc00f85f637f5bef15d5a66603d59073de990f876b6c70ae0cdc692f_1_1 | 546a17d8116b7df1a8e0673b9a510d2e3ef48531811714330572039a48f20703 |
Coding | codecontest | Write Python code to solve the task.
Iahub likes chess very much. He even invented a new chess piece named Coder. A Coder can move (and attack) one square horizontally or vertically. More precisely, if the Coder is located at position (x, y), he can move to (or attack) positions (x + 1, y), (x–1, y), (x, y + 1) and (x,... | Step 1: To solve this problem, we need to find the maximum number of Coders that can be placed on the chessboard without attacking each other.
Step 2: We can do this by placing Coders in alternate cells of the chessboard, ensuring that no two Coders are placed in cells that are adjacent to each other.
Step 3: We sho... | 03c78fc9a7ed064ad6e38a6ad94d22f2dc15dc7f84ba5ffb5df0c3666e013049_1_1 | 546a17d8116b7df1a8e0673b9a510d2e3ef48531811714330572039a48f20703 |
Coding | codecontest | Write Python code to solve the task.
Is it rated?
Here it is. The Ultimate Question of Competitive Programming, Codeforces, and Everything. And you are here to answer it.
Another Codeforces round has been conducted. No two participants have the same number of points. For each participant, from the top to the bottom o... | Step 1: We need to analyze the ratings of the participants before and after the round to determine if the round is rated, unrated, or if it's impossible to determine.
Step 2: We can start by checking if at least one participant's rating has changed, then the round was rated for sure.
Step 3: Then we need to check if... | ebcbebcc28585a5ba7449740d2a932fb5f9354047c11dce1027e3a5be5c3a756_1_1 | bab4e89e2e46733d45159c8b154cfbecd240f529065f0ac02c15d3810b93f716 |
Coding | codecontest | Write Python code to solve the task.
Is it rated?
Here it is. The Ultimate Question of Competitive Programming, Codeforces, and Everything. And you are here to answer it.
Another Codeforces round has been conducted. No two participants have the same number of points. For each participant, from the top to the bottom o... | Step 1: We need to check if the round is rated, unrated, or it's impossible to determine whether it is rated or not.
Step 2: The round is rated if at least one participant's rating has changed.
Step 3: The round is unrated if no one's rating has changed, but a participant with a lower rating took a better place.
Ste... | 5f605d577ce2616285601a136019609d3ec98e29c7d157473ac39ad072151c53_1_1 | bab4e89e2e46733d45159c8b154cfbecd240f529065f0ac02c15d3810b93f716 |
Coding | codecontest | Write Python code to solve the task.
You want to build a fence that will consist of n equal sections. All sections have a width equal to 1 and height equal to k. You will place all sections in one line side by side.
Unfortunately, the ground beneath the fence is not flat. For simplicity, you can think that the ground ... | Step 1: We need to check if it's possible to build a fence that meets all the rules based on the given conditions.
Step 2: To do this, we can iterate through each test case and check the ground levels and the height of each section to determine if it's possible to build the fence.
Step 3: We need to consider the rul... | ea71f0df34f4b73add58bd405a44891203b0bb6947bd05b07d399dd2bccef66b_1_1 | d9a5fabebc9ce1770baa51a6fc9c3cdf5ba0e768e3ba381177edb5c2b77e378b |
Coding | codecontest | Write Python code to solve the task.
You want to build a fence that will consist of n equal sections. All sections have a width equal to 1 and height equal to k. You will place all sections in one line side by side.
Unfortunately, the ground beneath the fence is not flat. For simplicity, you can think that the ground ... | Step 1: We need to check if it is possible to build a fence that meets the given rules for each test case.
Step 2: We should consider the ground levels and the difference between the ground levels to determine if it's possible to build the fence.
Step 3: Let's create a plan to implement the solution based on these t... | 6f4e686054c15a3f5bd34e7fc7519f1d7a68cca7f3f9733515c1e932ed926a10_1_1 | d9a5fabebc9ce1770baa51a6fc9c3cdf5ba0e768e3ba381177edb5c2b77e378b |
Coding | codecontest | Write Python code to solve the task.
Polycarp is writing the prototype of a graphic editor. He has already made up his mind that the basic image transformations in his editor will be: rotate the image 90 degrees clockwise, flip the image horizontally (symmetry relative to the vertical line, that is, the right part of t... | Step 1:
We need to write a Python program that takes an image as input and applies three consecutive actions: rotate 90 degrees clockwise, flip horizontally, and zoom in twice. Then we need to print the transformed image.
Step 2: We can start by creating separate functions to rotate the image 90 degrees, flip horizo... | 8ddb59229a5477c18bde3380fb1b90488e7e1db213f60c7e985c648992a356f9_1_1 | 9c5c201ae722efc674ea445669e0b52213f34d55953daf6f9e3af6ba8f9c1586 |
Coding | codecontest | Write Python code to solve the task.
Polycarp is writing the prototype of a graphic editor. He has already made up his mind that the basic image transformations in his editor will be: rotate the image 90 degrees clockwise, flip the image horizontally (symmetry relative to the vertical line, that is, the right part of t... | Step 1: We need to perform consecutive image transformations: rotating the image 90 degrees clockwise, flipping the image horizontally, and then zooming in twice on the image.
Step 2: We can start by creating a function to rotate the image 90 degrees clockwise.
Step 3: Then, we can create a function to flip the imag... | 11426933d4a1fa5a9b4cf223b41bd877b2ac7e6e536c93ac09eb936aa0c9221f_1_1 | 9c5c201ae722efc674ea445669e0b52213f34d55953daf6f9e3af6ba8f9c1586 |
Coding | codecontest | Write Python code to solve the task.
Igor is in the museum and he wants to see as many pictures as possible.
Museum can be represented as a rectangular field of n × m cells. Each cell is either empty or impassable. Empty cells are marked with '.', impassable cells are marked with '*'. Every two adjacent cells of diffe... | Step 1: We need to find the maximum number of pictures Igor can see from each starting position.
Step 2: We can start by creating a function to traverse the museum from a given starting position and count the number of pictures that Igor can see.
Step 3: We need to carefully handle the edge cases, such as starting p... | b4b63dd1ad830d35a1b658a59e9bbf04d7500e6ff2ef42bc172b1f2f0e2d6513_1_1 | 03d750fab4b273ca5d99e6f0d896e871c357668f28e8be38ed9b3a9ae5408d2a |
Coding | codecontest | Write Python code to solve the task.
Igor is in the museum and he wants to see as many pictures as possible.
Museum can be represented as a rectangular field of n × m cells. Each cell is either empty or impassable. Empty cells are marked with '.', impassable cells are marked with '*'. Every two adjacent cells of diffe... | Step 1: We need to find the maximum number of pictures Igor can see from each starting position.
Step 2: To solve this problem, we can use depth-first search (DFS) to traverse the museum and count the number of walls or pictures that Igor can see from each starting position.
Step 3: We should also create a function ... | 5f71f0db900685dbce29a473cdf628d6476df258a03076cc367cec780134d1d3_1_1 | 03d750fab4b273ca5d99e6f0d896e871c357668f28e8be38ed9b3a9ae5408d2a |
Coding | codecontest | Write Python code to solve the task.
Kevin has just recevied his disappointing results on the USA Identification of Cows Olympiad (USAICO) in the form of a binary string of length n. Each character of Kevin's string represents Kevin's score on one of the n questions of the olympiad—'1' for a correctly identified cow an... | Step 1: We need to find the length of the longest alternating subsequence that Kevin can create in his string after flipping a single substring.
Step 2: We can start by iterating through the binary string and finding all the alternating subsequences.
Step 3: Then, we can iterate through the alternating subsequences ... | bc10dd58fdf7bdbd2576adf6bd610dcd7094347a1101f5525602ba273deea282_1_1 | aebc013510b4fba4ddd5b8ca3f7eaa2ac2e5d9e8b041a54db0da14ac9d9de928 |
Coding | codecontest | Write Python code to solve the task.
Kevin has just recevied his disappointing results on the USA Identification of Cows Olympiad (USAICO) in the form of a binary string of length n. Each character of Kevin's string represents Kevin's score on one of the n questions of the olympiad—'1' for a correctly identified cow an... | Step 1: We need to find the length of the longest alternating subsequence in the given binary string.
Step 2: We can start by creating a function to find the length of the longest alternating subsequence in a given string.
Step 3: Then, we can iterate through all possible contiguous non-empty substrings and find the... | 6e1d3286c402b2af721d9aefe9da72b99cd0dc77fe5d3099bcf2f223f800fc2e_1_1 | aebc013510b4fba4ddd5b8ca3f7eaa2ac2e5d9e8b041a54db0da14ac9d9de928 |
Coding | codecontest | Write Python code to solve the task.
In Chelyabinsk lives a much respected businessman Nikita with a strange nickname "Boss". Once Nikita decided to go with his friend Alex to the Summer Biathlon World Cup. Nikita, as a very important person, received a token which allows to place bets on each section no more than on o... | Step 1: We need to find the maximum profit that Nikita and his friend can get by strategically placing bets on the participants in each section.
Step 2: To solve this problem, we can start by creating a dictionary to store the participants for each section and their respective time and profit value.
Step 3: Then we ... | 096baf3db7ed7d28999c390142730848ed6259e103f5c23e445e3db0ff24414e_1_1 | 1ab79f7c03a45903ffbcd8b611004bdac49182a8424c7e564933c72d6b074166 |
Coding | codecontest | Write Python code to solve the task.
In Chelyabinsk lives a much respected businessman Nikita with a strange nickname "Boss". Once Nikita decided to go with his friend Alex to the Summer Biathlon World Cup. Nikita, as a very important person, received a token which allows to place bets on each section no more than on o... | Step 1: We need to find the maximum profit that Nikita and his friend can get from placing bets on the sections of the race.
Step 2: We can start by parsing the input to get the number of sections and participants, as well as the details for each participant.
Step 3: Then we need to find the optimal bet for each sec... | 91d7779431d898b61fcab10bbdc5fa110490245e4fd850e28c4fd4b0aa39e570_1_1 | 1ab79f7c03a45903ffbcd8b611004bdac49182a8424c7e564933c72d6b074166 |
Coding | codecontest | Write Python code to solve the task.
Gildong has bought a famous painting software cfpaint. The working screen of cfpaint is square-shaped consisting of n rows and n columns of square cells. The rows are numbered from 1 to n, from top to bottom, and the columns are numbered from 1 to n, from left to right. The position... | Step 1: We need to find the maximum number of white lines after using the eraser exactly once.
Step 2: We can start by iterating through all possible positions to click the eraser and compute the resulting white lines.
Step 3: We also need to consider the logic for updating the grid after using the eraser.
Step 4: ... | 6c13e7b4afa0560dd101ce6ebd9daa4c943c5c85a552cbf34748183aba6d5fd3_1_1 | ec924c7ed497088f24df5bd379844310eea200cdd021171e94cd5fe2ddba7920 |
Coding | codecontest | Write Python code to solve the task.
Gildong has bought a famous painting software cfpaint. The working screen of cfpaint is square-shaped consisting of n rows and n columns of square cells. The rows are numbered from 1 to n, from top to bottom, and the columns are numbered from 1 to n, from left to right. The position... | Step 1: We need to find the maximum number of white lines after using the eraser exactly once.
Step 2: To do this, we can iterate through all possible cells to click on and simulate the effect of the eraser on the working screen.
Step 3: After simulating the effect of the eraser on the screen, we can count the numbe... | c434ecd8d85edbff70c33d0a3b18d9aad2d148c6818ac1836af31bc4b1f3ea09_1_1 | ec924c7ed497088f24df5bd379844310eea200cdd021171e94cd5fe2ddba7920 |
Coding | codecontest | Write Python code to solve the task.
Kolya is developing an economy simulator game. His most favourite part of the development process is in-game testing. Once he was entertained by the testing so much, that he found out his game-coin score become equal to 0.
Kolya remembers that at the beginning of the game his game-... | Step 1: We need to determine if it is possible to spend all of Kolya's initial game-coin score on only houses, cars, and computers.
Step 2: To do this, we can use a brute force approach to iterate through all possible combinations of houses, cars, and computers and check if their total sum equals Kolya's initial game... | 97a8dc78d8b81ff2ccaaa9a033af877c3555bc204e7ac624f4bb586b9205c92f_1_1 | 6f756ceb397e977e934f4999b795c78c1ee44f88c2717a4585cc608613c0c934 |
Coding | codecontest | Write Python code to solve the task.
Kolya is developing an economy simulator game. His most favourite part of the development process is in-game testing. Once he was entertained by the testing so much, that he found out his game-coin score become equal to 0.
Kolya remembers that at the beginning of the game his game-... | Step 1: We need to determine if it's possible to spend all of Kolya's initial game-coin score buying only houses, cars, and computers.
Step 2: We can do this by finding a combination of non-negative integers a, b, and c such that a * 1,234,567 + b * 123,456 + c * 1,234 equals n.
Step 3: We can solve this using a bru... | 26a9824945ca221f1303ede2cb107db148ccac713e23a182aa1118deeff48e98_1_1 | 6f756ceb397e977e934f4999b795c78c1ee44f88c2717a4585cc608613c0c934 |
Coding | codecontest | Write Python code to solve the task.
Since I got tired to write long problem statements, I decided to make this problem statement short. For given positive integer L, how many pairs of positive integers a, b (a ≤ b) such that LCM(a, b) = L are there? Here, LCM(a, b) stands for the least common multiple of a and b.
Con... | Step 1: We need to find the number of pairs of positive integers a, b (a ≤ b) such that LCM(a, b) = L
Step 2: To solve this problem, we can iterate through all possible pairs of positive integers a and b and check if their LCM equals L.
Step 3: We should also consider the constraints for L (1 ≤ L ≤ 10^12).
Step 4: ... | 5eedef8cd9688ccf2f367770b60463a7edba4895b32270f3076f5486c68a4b72_1_1 | e67ca26cb5f6d41a3474cce047809100a5fc390b6f4416b1d66ea2675ef26540 |
Coding | codecontest | Write Python code to solve the task.
Since I got tired to write long problem statements, I decided to make this problem statement short. For given positive integer L, how many pairs of positive integers a, b (a ≤ b) such that LCM(a, b) = L are there? Here, LCM(a, b) stands for the least common multiple of a and b.
Con... | Step 1: To solve this problem, we need to find the pairs of positive integers a and b such that the LCM(a, b) = L.
Step 2: We can iterate through all possible pairs of positive integers a and b up to L and check if their LCM is equal to L.
Step 3: We should also consider optimizing the solution to handle large input... | 0b55372077cb6eb7333573cb7ecb005448e8bffb9091414d86cc65be935c71b2_1_1 | e67ca26cb5f6d41a3474cce047809100a5fc390b6f4416b1d66ea2675ef26540 |
Coding | codecontest | Write Python code to solve the task.
You are one of ICPC participants and in charge of developing a library for multiprecision numbers and radix conversion. You have just finished writing the code, so next you have to test if it works correctly. You decided to write a simple, well-known factorial function for this purp... | Step 1: We need to write a function to calculate the factorial of a number M and then convert it to base N.
Step 2: After converting to base N, we need to count the number of trailing zeros in the resulting number.
Step 3: We can start by writing a function to calculate the factorial of a number.
Step 4: Then we ca... | 4a52d33e4487dd285e754ef92be0b6498f2df1804117567816f473c5a5b50b78_1_1 | 01b54ca83692ba9d6ffa028766e04a53b181f688f22dcfe142c6418b1f92328d |
Coding | codecontest | Write Python code to solve the task.
You are one of ICPC participants and in charge of developing a library for multiprecision numbers and radix conversion. You have just finished writing the code, so next you have to test if it works correctly. You decided to write a simple, well-known factorial function for this purp... | Step 1: We need to write a program to calculate the number of trailing zeros in the factorial of a number M in base N.
Step 2: We can start by defining a function to calculate the factorial of a given number.
Step 3: Then, we can convert the factorial to base N and count the number of trailing zeros in the base N re... | 81775257dd3ef3c174ac0cb340c7353b3830819682d88c267ebaabea39513fa0_1_1 | 01b54ca83692ba9d6ffa028766e04a53b181f688f22dcfe142c6418b1f92328d |
Coding | codecontest | Write Python code to solve the task.
Chef has a rooted tree G, consisting of N vertices. Each edge of the tree has a color black or white.
Once Chef's friend Ksen offered Chef to play a game on the tree G. The game has very simple rule:
The players make moves in the game alternately.
On his move Chef deletes a single ... | Step 1: To solve this problem, we need to consider the optimal moves for Chef and Ksen in the game based on the color of the edges.
Step 2: We can start by representing the tree as an adjacency list to efficiently determine the connectivity of edges to the root.
Step 3: Then, we can use a recursive function to deter... | e2b26a7e3486ba84adda0f484f98cbf6a3653e1013b80cf690ecef5b7e405537_1_1 | c2f4c95e2ad7c7683997a544a54d79ebe598fb13b0d631d7829c2b7b7db608ea |
Coding | codecontest | Write Python code to solve the task.
Chef has a rooted tree G, consisting of N vertices. Each edge of the tree has a color black or white.
Once Chef's friend Ksen offered Chef to play a game on the tree G. The game has very simple rule:
The players make moves in the game alternately.
On his move Chef deletes a single ... | Step 1: This problem involves simulating a game on a tree structure, where the players alternate making moves to delete edges.
Step 2: We need to determine the winner if Chef moves first and the winner if Ksen moves first.
Step 3: We can start by considering the optimal strategy for both Chef and Ksen, and then simu... | 02051f39d73a9e6d1456bb87151ab0fe189b7a8d0363d5791c5edc826b66b2e8_1_1 | c2f4c95e2ad7c7683997a544a54d79ebe598fb13b0d631d7829c2b7b7db608ea |
Coding | codecontest | Write Python code to solve the task.
Arjit, Protector of The Realm, has an important task at hand. M new subjects are soon going to become a part of The Realm. The Realm, though, already has N subjects who are well skilled in the ways of The Realm. He wants the new subjects too to become perfect in the ways.
As any P... | Step 1: We need to determine if the current subjects of the Realm can train the new subjects based on their skills and proficiency.
Step 2: For each new subject, we need to find a matching current subject with the same special skill and proficiency.
Step 3: We should calculate the number of good pairs and great comb... | 41cbe8b6494f39987e2b958282a826cb6e3d10be5bd10c63a058b8a23ec341e4_1_1 | 6c9b3a843aa1831e5341c8074a6be70ee491a3e37c1238975ef038e00fe0f242 |
Coding | codecontest | Write Python code to solve the task.
Arjit, Protector of The Realm, has an important task at hand. M new subjects are soon going to become a part of The Realm. The Realm, though, already has N subjects who are well skilled in the ways of The Realm. He wants the new subjects too to become perfect in the ways.
As any P... | Step 1: We need to find good pairs and great combinations between the new subjects and the existing subjects in the realm.
Step 2: To do this, we can iterate through the new subjects and check if there is a matching existing subject with the same special skill and proficiency level.
Step 3: We also need to count the... | 0a7a49fb83556d6046776ae7b7453706e8f1d366761d1d2994ded41004931bc9_1_1 | 6c9b3a843aa1831e5341c8074a6be70ee491a3e37c1238975ef038e00fe0f242 |
Coding | codecontest | Write Python code to solve the task.
Some time ago Mister B detected a strange signal from the space, which he started to study.
After some transformation the signal turned out to be a permutation p of length n or its cyclic shift. For the further investigation Mister B need some basis, that's why he decided to choose... | Step 1: We need to find the cyclic shift of the given permutation with the minimum possible deviation.
Step 2: We can start by understanding how a cyclic shift affects the deviation of the permutation.
Step 3: We can iterate through all possible cyclic shifts and calculate their deviation. Then find the one with the... | 50cd126e9965abe3d29f239a97ef64258e9fdcb853f18487a14c556c80a9d756_1_1 | 38c7ed3c02bebe42463a9618e20c14498674314665760ea9ebf303c8f0fa80a3 |
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