Appearance
question:You are given a list of integers representing the daily temperatures for a week and a target temperature. Write a function that will determine the number of days within the week where the temperature was greater than the target temperature. The input contains two parts: a single line with the target temperature, followed by a single line with 7 integers representing the temperatures for each day of the week, separated by spaces. The function should output a single integer representing the number of days where the temperature exceeded the target temperature. # Input - An integer target temperature. - A list of 7 integers separated by a space, representing the temperatures for each day of the week. # Output - An integer representing the number of days with temperatures greater than the target. # Example Input ``` 30 31 29 35 30 28 32 33 ``` Output ``` 4 ``` Note: On days 1, 3, 6, and 7 the temperature is higher than the target temperature of 30. Therefore, the output is 4.
answer:def count_days_above_target(target, temperatures): Returns the number of days where the temperatures are greater than the target temperature. :param target: int - the target temperature :param temperatures: list of int - temperatures for each day of the week :return: int - the number of days with temperatures greater than the target return sum(1 for temp in temperatures if temp > target)
question:In a distant land of Matrixia, the inhabitants love to arrange numbers in the form of matrices. One day, a Matrixian named Zeta found a peculiar matrix property they termed as "row-column palindrome." A matrix is considered a row-column palindrome if for every element in the matrix, the corresponding element in the transpose of the matrix is the same. Given a square matrix of size n x n (2 ≤ n ≤ 100), determine if the matrix is a row-column palindrome. # Input: - The first line contains a single integer n, representing the size of the matrix. - The next n lines each contain n integers separated by spaces, representing the elements of the matrix. # Output: - Print "YES" if the matrix is a row-column palindrome. - Print "NO" otherwise. # Example: Input: ``` 3 1 2 3 2 5 6 3 6 9 ``` Output: ``` YES ``` Input: ``` 2 1 2 3 4 ``` Output: ``` NO ```
answer:def is_row_column_palindrome(n, matrix): Checks if the given n x n matrix is a row-column palindrome. for i in range(n): for j in range(n): if matrix[i][j] != matrix[j][i]: return "NO" return "YES"
question:You are given a list of integers representing the amounts of money in different bank accounts. Each bank account starts with an initial amount and over time a certain number of transactions have been applied to it. Each transaction to a bank account is represented as a pair of integers `(account, amount)`, where `account` is the index of the bank account and `amount` is the value of the transaction (positive for deposits, negative for withdrawals). Each transaction is applied in the order it is given. Your task is to process a series of transactions on the given bank accounts and then answer a series of queries. Each query asks for the current balance of a specific account. Input: - The first line contains an integer `n` (1 ≤ n ≤ 100,000) - the number of bank accounts. - The second line contains `n` integers representing the initial amounts in the bank accounts. - The third line contains an integer `m` (1 ≤ m ≤ 100,000) - the number of transactions. - The next `m` lines each contain two integers `account` (1 ≤ account ≤ n) and `amount` (-100,000 ≤ amount ≤ 100,000), describing a transaction. - The following line contains an integer `q` (1 ≤ q ≤ 100,000) - the number of queries. - The next `q` lines each contain a single integer `account` (1 ≤ account ≤ n), representing a query for the current balance of the specified account. Output: - For each query, output the current balance of the specified account. Example: Input: ``` 5 100 200 300 400 500 6 1 50 2 -100 3 200 1 -25 5 -300 4 100 3 1 5 4 ``` Output: ``` 125 200 500 ``` Explanation: - Initial balances: [100, 200, 300, 400, 500] - After transactions: - 1 50 => [150, 200, 300, 400, 500] - 2 -100 => [150, 100, 300, 400, 500] - 3 200 => [150, 100, 500, 400, 500] - 1 -25 => [125, 100, 500, 400, 500] - 5 -300 => [125, 100, 500, 400, 200] - 4 100 => [125, 100, 500, 500, 200] - Queries: - 1 => 125 - 5 => 200 - 4 => 500
answer:def update_and_query_balances(n, initial_balances, m, transactions, q, queries): Updates the balances of bank accounts based on transactions and answers the queries for current balances. :param n: int - Number of bank accounts :param initial_balances: list of int - Initial amounts in each bank account :param m: int - Number of transactions :param transactions: list of tuples (int, int) - Transactions represented by (account, amount) :param q: int - Number of queries :param queries: list of int - Queries for the current balance of specified accounts :return: list of int - Current balances for each query # Applying the transactions for account, amount in transactions: initial_balances[account - 1] += amount # Preparing results for queries results = [initial_balances[account - 1] for account in queries] return results
question:Mariana is trying to solve a coding puzzle where she needs to determine if she can rearrange the characters of a given string to form a palindrome. A palindrome is a word or phrase that reads the same forward and backward, ignoring spaces, punctuation, and capitalization. Your task is to write a function that takes a single string as input and returns `True` if the string can be rearranged to form a palindrome, and `False` otherwise. The input string will consist of lowercase English letters only, and its length will be between 1 and 10^5. # Input: - A single string s (1 ≤ |s| ≤ 10^5) consisting of lowercase English letters. # Output: - A single boolean value: `True` if the string can be rearranged to form a palindrome, `False` otherwise. # Example: Example 1: Input: "civic" Output: True Explanation: "civic" is already a palindrome. Example 2: Input: "ivicc" Output: True Explanation: "ivicc" can be rearranged to "civic", which is a palindrome. Example 3: Input: "hello" Output: False Explanation: There is no way to rearrange "hello" to form a palindrome. Example 4: Input: "aabbcc" Output: True Explanation: "aabbcc" can be rearranged to "abccba", which is a palindrome.
answer:def can_form_palindrome(s): Determines if the characters of the input string can be rearranged to form a palindrome. :param s: Input string consisting of lowercase English letters. :return: True if the string can be rearranged to form a palindrome, False otherwise. from collections import Counter # Count the frequency of each character in the string. char_count = Counter(s) # To form a palindrome, at most one character can have an odd frequency. odd_count = sum(1 for count in char_count.values() if count % 2 != 0) # A string can be rearranged to form a palindrome if there's at most one character with an odd count. return odd_count <= 1