15. An urn contains 5 red marbles and 3 white marbles. If two marbles are picked up at random, what is the probability that two marbles is red? 13/36 O 1/13 O 11/15 O 13/35 O 9 هذا السؤال مطلوب
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- Stone Pit is a game in historic roman time, that involves removing stones from tower of stones. The rules of this game are mentioned under: At first there are X group of stones, numbered 1 through X. Two warriors can play and they take alternate turns. If the bitwise XOR of all group equals 0 before a warrior's chance, then that warrior is declared winner. When warrior's turn comes, they must choose one of the remaining groups and remove it. Develop a C++ program to decide which warrior wins, given that both warriors are expert at this game. Sample Input: 4 4271 Sample Output: Second WarriorA set of coins makes change for n if the sum of the values of the coins is n. For example, if you have 1- cent, 2-cent and 4-cent coins, the following sets make change for 7: • 7 1-cent coins . 51-cent, 1 2-cent coins 3 1-cent, 2 2-cent coins 3 1-cent, 1 4-cent coins . 11-cent, 3 2-cent coins . 1 1-cent, 1 2-cent, 1 4-cent coins Thus, there are 6 ways to make change for 7. Write a function count_change that takes a positive integer n and a list of the coin denominations and returns the number of ways to make change for n using these coins (Hint: You will need to use tree recursion): def count_change (amount, denominations): """Returns the number of ways to make change for amount. >>> denominations = [50, 25, 10, 5, 1] >>> count_change (7, denominations). 2 >>> count_change (100, denominations) 292 >>> denominations = [16, 8, 4, 2, 11 >>> count_change (7, denominations) 6 >>> count_change (10, denominations) 14 >>> count_change (20, denominations) 60 |||||| "*** YOUR CODE HERE ***" ĴThere are 7 balls hidden in a box (3 blue and 4 green). If you first select a green ball and do not replace in the box, what is the probability that the second ball you select from the box will also be green? [Your answer can be written either as a fraction or decimal]
- There are 2016 passengers about to board a plane, numbered 1 through 2016 in that order. Each passenger is assigned to a seat equal to his or her own number. However, the first passenger disregards instructions and instead of sitting in seat number 1, chooses and sits down in a randomly chosen seat. Each subsequent passenger acts according to the following scheme: if their assigned seat is available, they will sit there; otherwise, they will pick at random from the remaining available seats and sit there. What is the probability that the 1512th passenger ends up sitting in their assigned seat? A. 1/2016 B. 1/2 C. 5/8 D. 3/4 E. None of the aboveA high school has 1000 students and 1000 lockers, one locker for each student. On the first day of school, theprincipal plays the following game: She asks the first student to open all the lockers. She then asks the secondstudent to close all the even-numbered lockers. The third student is asked to check every third locker. If it isopen, the student closes it; if it is closed, the student opens it. The fourth student is asked to check every fourthlocker. If it is open, the student closes it; if it is closed, the student opens it. The remaining students continuethis game. In general, the nth student checks every nth locker. If it is open, the student closes it; if it is closed,the student opens it. After all the students have taken turns, some of the lockers are open and some are closed.The program below, when ran, will prompt the user to enter the number of lockers in the school. After thegame is over, the program will output the number of lockers and the lockers numbers of the lockers…In a game called NIM, there are two players. At the start, two piles of matches are placed on the table in front of them, each containing two matches. In turn, the players take any (positive) number of matches from one of the piles. The player taking the last match loses. Which player is sure to win in this game? O First Player O No answer text provided. O There is no way of knowing the outcome. O Second Player
- For what values of c isle(1.2.3)|= 1? A. + B. - V14 C.tV14 D. + 414. Let A = {а, b, с, d}, B 3 {а, у} and С- {m, п, о, р}. Find а. Ах В %— b. В2 — c. |A x B x C| =In a candy store, there are N different types of candies available and the prices of all the N different types of candies are provided to you. You are now provided with an attractive offer. You can buy a single candy from the store and get at most K other candies ( all are different types ) for free. Now you have to answer two questions. Firstly, you have to find what is the minimum amount of money you have to spend to buy all the N different candies. Secondly, you have to find what is the maximum amount of money you have to spend to buy all the N different candies. In both the cases you must utilize the offer i.e. you buy one candy and get K other candies for free. Example 1: Input: N = 4 K = 2 %3D candies[] = {3 2 1 4} Output: 3 7
- Correct answer will be upvoted else Multiple Downvoted. Don't submit random answer. Computer science. You are given a variety of n integers a1, a2, ..., an, and a set b of k unmistakable integers from 1 to n. In one activity, you might pick two integers I and x (1≤i≤n, x can be any integer) and allocate ai:=x. This activity should be possible provided that I doesn't have a place with the set b. Compute the base number of tasks you ought to perform so the cluster an is expanding (that is, a1<a2<a3<⋯<an), or report that it is inconceivable. Input The principal line contains two integers n and k (1≤n≤5⋅105, 0≤k≤n) — the size of the exhibit an and the set b, individually. The subsequent line contains n integers a1, a2, ..., an (1≤ai≤109). Then, at that point, if k≠0, the third line follows, containing k integers b1, b2, ..., bk (1≤b1<b2<⋯<bk≤n). On the off chance that k=0, this line is skipped. Output In case it is difficult to make the exhibit…Suppose we can buy a chocolate bar from the vending machine for $1 each.Inside every chocolate bar is a coupon. We can redeem six coupons for onechocolate bar from the machine. This means that once you have startedbuying chocolate bars from the machine, you always have some coupons.We would like to know how many chocolate bars can be eaten if we startwith N dollars and always redeem coupons if we have enough for an additional chocolate bar.For example, with 6 dollars we could consume 7 chocolate bars afterpurchasing 6 bars giving us 6 coupons and then redeeming the 6 couponsfor one bar. This would leave us with one extra coupon. For 11 dollars, wecould have consumed 13 chocolate bars and still have one coupon left.For 12 dollars, we could have consumed 14 chocolate bars and have twocoupons left.Stone Pit is a game in historic roman time, that involves removing stones from tower of stones. The rules of this game are mentioned under: • At first there are X group of stones, numbered 1 through X. Two warriors can play and they take alternate turns. If the bitwise XOR of all group equals 0 before a warrior's chance, then that warrior is declared winner. When warrior's turn comes, they must choose one of the remaining groups and remove it. Develop a JAVA program to decide which warrior wins, given that both warriors are expert at this game. Sample Input: 1 3 561 Sample Output: First Warrior