Кeys We have a box with 21 keys. There are 7 types of keys. Each key is colored (monochromatic) in one of 3 colors: red, grcen, or blue. Thus, the box contains exactly one key of cach combination of type and color. We pick a subsct of keys from the box. For cach of the following seven questions, count the number of ways that we can pick a subset satisfying the listed constraints. Your answers must be given in terms of binomials and exponentials. Do not give your answers in terms of factorials. Do not simplify your answers into a single integer. You must use binomials and exponentials. Use the notation (:) for binomials. justify cach of your seven answers, and show your calculations. Formal proofs are not required.
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- You are given a 2 by n grid, where the cell on row i column j contains a non-negative number ai,j . You can start at either cell in the lefttmost column, and your goal is to reach either cell in the rightmost column by a sequence of moves. You can move to an adjacent cell (if it exists) in each of the 4 cardinal directions (up,down, left and right). A path achieves a score equal to the sum of values in its cells. Note that a cell which is used twice in a path only counts its value once to the score of that path.Design an algorithm which runs in O(n) time and finds a path of minimum score from the leftmost column to the rightmost column.You have a backpack that can carry at most 15 kg of stuff (following image). There are ten boxes of five types (A, B, C, D, and E), with two boxes of each type. The weights and values of the boxes are given in the figure. You want to select some of these boxes to put in your backpack in order to maximize their total value, but you cannot exceed the backpack’s weight capacity. Additionally,• if a type B box is selected, then no type C box can be selected• at least one box of either type A or type D must be selected Formulate an integer linear programming model to help you make the bag packing decision. To assist you, below are your decision variables.• yi: select (= 1) or not select (= 0) type i box, i = A, B, C, D, E.• xj: The number of type j boxes selected, j = A, B, C, D, E.Correct answer will be upvoted else Multiple Downvoted. Computer science. player begins the game from the 1-st stage and should beat the stages in expanding request of the stage number. The player dominates the match in the wake of beating the n-th stage. There is all things considered one designated spot on each stage, and there is consistently a designated spot on the 1-st stage. Toward the start of the game, just the designated spot on the 1-st stage is initiated, and any remaining designated spots are deactivated. At the point when the player gets to the I-th stage that has a designated spot, that designated spot is initiated. For each attempt of a phase, the player can either beat the stage or bomb the stage. On the off chance that they beat the I-th stage, the player is moved to the i+1-st stage. On the off chance that they bomb the I-th stage, the player is moved to the latest designated spot they actuated, and they need to beat the stages after that designated spot once…
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(b) Then you randomly draw a card from the suit, and let computer draw a card from the same…A deck of cards contains 52 cards with four suits: club, diamond, heart and spade ranging in values from 2, ... to 10, Jack, Queen, King and Ace. Ace has the highest value in the same suit. Cards can be compared using the face value. A card with higher face value is bigger than a card with lower face value. If two cards have the same face value, then the suit determines the order. Club is smaller than diamond which is smaller than heart which is smaller than spade. For example: club 2 < diamond 2 < heart 2 < spade 2 if compared. Write an interactive Java program that allows a user to randomly pick a card from the deck of 52 cards (using a random number between 1 and 4 to represent the four suits: club, diamond, heart and spade and then another random number to represent the face value) to play. Show the suit and face value of the user card. Then the program acts as a card dealer which randomly draws another card and displays the card (again showing the suit and face value of…Question-2: A pyramids are discovered, each has a triangular base with equal sides. An n meters high pyramid is constructed by forming n layers of triangles using Im cubical stones. Then layers are stacked on top of each other. The first layer is the triangle with n meters base, on top, n-1 meters base, until the top level which has only 1 stone. You are asked to calculate the number of stones needed to build a pyramid with the height n. WAIT! We just discovered that some pyramids have a secret room inside. This room is also of the same shape and structure as the pyramid with m layers of stones removed. In order for the room to be secret, mConsider a billboard that consists of n vertical panels of width 1 and varying integer heights, hanged down and held by a horizontal roller from the top. The panel i has a height hi. hi For the objective of placing two banners, it is allowed to move each panel up by any integer length using the roller. Once the necessary moves are completed, you may place two banners completely inside of the panels. Based on the above description, what is the maximum total area that you can provide for the two posters? Input The first line of input contains one integer n (1Question 8 How to Attempt? Pokemon Battle As a Pokemon Master, you are training in a gym. Your favorite Pokemon, 'Pikachu is in a Pokemon battle with 'Mewtwo'. If Pikachu can make all his moves in any order sequentially, he could win. You have to help Pikachu win. Your task is to find smallest starting positions of simultaneous attacks of Pikachu which could help him win. You are given a string of lower alphabets consisting of all the attacks of the battle. Find out the starting position of first such attack sequences which have all attacks performed sequentially without break. Revisit Later Input Specification: input1: Number of attacks input2: Length of an attack input3: Array containing Pikachu's all possible attacks, each of length input2. input4: String consisting of large number of attacks Output Specification: Your function must return the starting address of all such attacks that could help Pikachu win. Example 1: Example 1: input1: 3 input2: 4 input3: ("bite", "tail", "bolt")…Correct answer will be upvoted else downvoted. Computer science. You and your companions live in n houses. Each house is situated on a 2D plane, in a point with integer organizes. There may be various houses situated in a similar point. The chairman of the city is requesting you for places for the structure from the Eastern show. You need to track down the number of spots (focuses with integer arranges), so the outline distance from every one of the houses to the show is insignificant. The display can be inherent a similar point as some house. The distance between two focuses (x1,y1) and (x2,y2) is |x1−x2|+|y1−y2|, where |x| is the outright worth of x. Input First line contains a solitary integer t (1≤t≤1000) — the number of experiments. The principal line of each experiment contains a solitary integer n (1≤n≤1000). Next n lines portray the places of the houses (xi,yi) (0≤xi,yi≤109). It's reliable that the amount of everything n doesn't surpass 1000. Output For…You are the chief commander of US Army; you have been deployed in an ongoing war training of defusing the mine. Mines are placed on the ground which can be considered as a gird of size N*M. Each block (i, j) has a mine in it if and only if the summation of the block coordinates is divisible by 2. Your task is to move from the first row to the last row. The mines will not blow if the given rules are followed: • If you are on even row you can move to any cell that is in the neighborhood • If you are on odd row, you can only go the odd row that has mine on that and same with the unmined row. You have to develop a python program to calculate the number of ways to reach row number N starting from row number 1. Test Cases: 4 8 Output: 10In stores, boxes should be placed in an organized way otherwise it will be messy. Given a collection of boxes, it is requested to place them on top of each other to reach the minimum possible height. There is a condition, where a box cannot be placed on top of another box unless the area of its 2D base is smaller or equal of the 2D base of the lower box. It is allowed to rotate any box to use any two sides as its base. For example, consider below 4 boxes where each box has the following dimensions Input: Box 1: (2,1,3), Box 2:(6,3,8) Box 3: (4,2,5), Box 4:(3,1,6), Output: From bottom to top as follows: In the bottom → Box 2 on the base (6,8) and height 3, On top of it → Box 3 on the base (4,5) and height 2, Then → Box 4 on the base (6,3) and height 1, Finally → Box 1 on the base (2,3) and height 1. The total height is 7 [Explanation: as we can see that the first box in the bottom is the box 2 with base 6x8 and height 3, then box3 with base 4x5 and height 2, and so on. This arrangement…Consider a billboard that consists of n vertical panels of width 1 and varying integer heights, hanged down and held by a horizontal roller from the top. The panel i has a height h For the objective of placing two banners, it is allowed to move each panel up by any integer length using the roller. Once the necessary moves are completed, you may place two banners completely inside of the panels. Based on the above description, what is the maximum total area that you can provide for the two posters? Output Print a single integer- the maximum total area the two posters can cover together. Example 1: 6 Input: Output: 18 Input The first line of input contains one integer n (1SEE MORE QUESTIONSRecommended textbooks for youDatabase System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSONC How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. 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