Diademata

https://www.acmicpc.net/problem/14503 로봇 청소기와 방의 상태가 주어졌을 때, 청소하는 영역의 개수를 구하는 프로그램을 작성하시오. 로봇 청소기가 있는 방은 N X M 크기의 직사각형으로 나타낼 수 있으며, 1 X 1 크기의 정사각형 칸으로 나누어져 있다. 각각의 칸은 벽 또는 빈 칸이다. 청소기는 바라보는 방향이 있으며, 이 방향은 동, 서, 남, 북 중 하나이다. 방의 각 칸은 좌표 (r, c)로 나타낼 수 있고, 가장 북쪽 줄의 가장 서쪽 칸의 좌표가 (0,0) 가장 남쪽 줄의 가장 동쪽 칸의 좌표가 (N-1, M-1)이다. 즉, 좌표 (r,c) 는 북쪽에서 (r + 1)번째에 있는 줄의 서쪽에서 (c + 1)번째 칸을 가리킨다. 처음에 빈 칸은 전부 청소되지 않은 상..

https://www.acmicpc.net/problem/15235 During the Olympiad finals we usually serve pizza for the contestants. When the food arrives, the contestants to queue to get some pizza. Each student will be given a single slice of pizza when his/her turn arrives. The problem is that some people need more than one slice of pizza to be well fed so they need to queue again for more pizza after they get the f..

For a = 2 and b = 7, the output should be rangeBitCount(a, b) = 11. Given a = 2 and b = 7 the array is: [2, 3, 4, 5, 6, 7]. Converting the numbers to binary, we get [10, 11, 100, 101, 110, 111], which contains 1 + 2 + 1 + 2 + 2 + 3 = 11 1s. Input/Output [execution time limit] 0.5 seconds (cpp) [input] integer a Guaranteed constraints: 0 ≤ a ≤ b. [input] integer b Guaranteed constraints: a ≤ b ≤ ..

You are given an array of up to four non-negative integers, each less than 256. Your task is to pack these integers into one number M in the following way: The first element of the array occupies the first 8 bits of M; The second element occupies next 8 bits, and so on. Return the obtained integer M. Note: the phrase "first bits of M" refers to the least significant bits of M - the right-most bi..

In order to stop the Mad Coder evil genius you need to decipher the encrypted message he sent to his minions. The message contains several numbers that, when typed into a supercomputer, will launch a missile into the sky blocking out the sun, and making all the people on Earth grumpy and sad. You figured out that some numbers have a modified single digit in their binary representation. More spec..

Your company hired an intern database engineer, who immediately started updating the data in the system. Unfortunately, he hasn't fully grasped the concept of NULL values yet and he performed some incorrect inserts and updates to the departments table, which has the following structure: id: the unique department ID; name: the name of the department; description: the description of the department..

Implement the missing code, denoted by ellipses. You may not modify the pre-existing code.You've been dreaming about becoming a famous hacker all your life, and now it's time to make your dreams come true! You decided to start by finding a website that has some vulnerability, and you just found a doozy. This particular website has an open database users that contains information about the people..

Your company is planning to expand internationally very soon. You have been tasked with preparing a report on foreign markets and potential competitors. After some investigation, you've created a database containing a foreignCompetitors table, which has the following structure: competitor: the name of the competitor;country: the country in which the competitor is operating.In your report, you ne..

You have a table soccer_team that contains information about the players in your favorite soccer team. This table has the following structure: id: the unique ID of the player;first_name: the first name of the player;surname: the last name of the player;player_number: the number that the player wears (the number is guaranteed to be unique).Create a semicolon-separated list of all the players, sor..

You are an avid traveler and you've visited so many countries that when people ask you where you've been, you can't even remember all of them! Luckily, every time you travel somewhere you write down the trip information in your diary. Now you want to get a list of all the different countries that you have visited using the information in your diary. The diary is represented as a table diary, whi..