🐍Python/Python_알고리즘
[알고리즘] 27. Picking Numbers
Given an array of integers, find and print the maximum number of integers you can select from the array such that the absolute difference between any two of the chosen integers is less than or equal to . For example, if your array is , you can create two subarrays meeting the criterion: and . The maximum length subarray has elements.Function DescriptionComplete the pickingNumbers function in the..
[알고리즘] 26. Forming a Magic Square
We define a magic square to be an matrix of distinct positive integers from to where the sum of any row, column, or diagonal of length is always equal to the same number: the magic constant.You will be given a matrix of integers in the inclusive range . We can convert any digit to any other digit in the range at cost of . Given , convert it into a magic square at minimal cost. Print this cost on..
[알고리즘] 25. Cats and a Mouse
Two cats and a mouse are at various positions on a line. You will be given their starting positions. Your task is to determine which cat will reach the mouse first, assuming the mouse doesn't move and the cats travel at equal speed. If the cats arrive at the same time, the mouse will be allowed to move and it will escape while they fight.You are given queries in the form of , , and representing ..
[알고리즘] 24. Electronics Shop
Monica wants to buy a keyboard and a USB drive from her favorite electronics store. The store has several models of each. Monica wants to spend as much as possible for the items, given her budget.Given the price lists for the store's keyboards and USB drives, and Monica's budget, find and print the amount of money Monica will spend. If she doesn't have enough money to both a keyboard and a USB d..
[알고리즘] 23. Counting Valleys
Gary is an avid hiker. He tracks his hikes meticulously, paying close attention to small details like topography. During his last hike he took exactly steps. For every step he took, he noted if it was an uphill, , or a downhill, step. Gary's hikes start and end at sea level and each step up or down represents a unit change in altitude. We define the following terms:A mountain is a sequence of co..
[알고리즘] 22. Drawing Book
Brie’s Drawing teacher asks her class to open their books to a page number. Brie can either start turning pages from the front of the book or from the back of the book. She always turns pages one at a time. When she opens the book, page is always on the right side:When she flips page , she sees pages and . Each page except the last page will always be printed on both sides. The last page may onl..