Assume int[][] matrix {{4, 8, 2}, {7, 5}, {0}}; ,what is matrix[1] [1] ?
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- Assume int[][] matrix = {{3, 2}, {7, 9, 5}, {4, 8, 2, 6}}; , How many elements are in array? 12 3Class name: SURNAME_MATRIX Data fields: two(2) q xr arrays where: q = no. of characters of your first name. If q <= 5 then q = q * 2. r= no. characters of your surname. if r<= 5 then r=r*2. Methods: Constructor: initialize two(2) arrays. Value of each element = no. of characters of your fullname * 2.5. fillA1() - populate 2d-Array1 with random numbers. (200 max). seed - default fillA2() - populate 2d-Array2 with random numbers. (5000 max). seed - default addSubA1A2(int flag) - add or subtract the two matrices and display the resultant matrix (size is q xralso). (note: invoke first fillA1() and fillA2()) if flag is nonzero add matrices else subtract matrices. e.g. addSubA1A2(3) <-- add arrays, addSubA1A2(0) <-- subtract arrays toString() - displays the current date once and your fullname k times where kis a random number < 8. Filename: SURNAME_SSE2.java In main(): Create two(2) objects using array of objects and use ALL the methods for each object.If int abc[5]= {1,2,3,4,5}. What is the value of abc[4]?
- Code to :::Implplement a SnapshotArray that supports the following interface: SnapshotArray(int length) initializes an array-like data structure with the given length. Initially, each element equals 0. void set(index, val) sets the element at the given index to be equal to val. int snap() takes a snapshot of the array and returns the snap_id: the total number of times we called snap() minus 1. int get(index, snap_id) returns the value at the given index, at the time we took the snapshot with the given snap_id Example 1: Input: ["SnapshotArray","set","snap","set","get"] [[3],[0,5],[],[0,6],[0,0]] Output: [null,null,0,null,5] Explanation: SnapshotArray snapshotArr = new SnapshotArray(3); // set the length to be 3 snapshotArr.set(0,5); // Set array[0] = 5 snapshotArr.snap(); // Take a snapshot, return snap_id = 0 snapshotArr.set(0,6); snapshotArr.get(0,0); // Get the value of array[0] with snap_id = 0, return 5..def drop_uninformative_objects(X, y):# your code herereturn X_subset, y_subset # TEST drop_uninformative_objects functionA = pd.DataFrame(np.array([[0, 3, np.nan],[4, np.nan, np.nan],[np.nan, 6, 7],[np.nan, np.nan, np.nan],[5, 5, 5],[np.nan, 8, np.nan],]))b = pd.Series(np.arange(6))A_subset, b_subset = drop_uninformative_objects(A, b) assert A_subset.shape == (3, 3)assert b_subset.shape == (3,)Given the array: array, 5> A1 = { 18, 4, 5, 6, 67, 22, 44, 89, 14, 7, 33, 49, 12, 5, 110 }; What is element A1[5][3] O 89 O 49 0 5 0 7 Undefined
- Student* func () { unique ptr arr[] make_unique ("CSC340") }; // #1 Insert Code int main () ( // #2 Insert Code [ #1 Insert Code]: Write code to keep all the object(s) which element(s) of array arr owns alive outside of the scope of func. [#2 Insert Code]: Write code to have a weak_ptr monitor the object which survived; Then test if it has any owner; Then properly destroy it; Then test again if has any owner; Then destroy the Control Block.def create_identity_matrix(n):"""Create a nxn sized identity matrix. The return type should be a list or numpy ndarrayFor more info: https://en.wikipedia.org/wiki/Identity_matrixFor this exercise you can use nested loops to construct your 2d array or find an applicable function in the numpy library.:param n::return: nxn ndarray where the diagonal elements are 1 and nondiagonal elements are 0"""pass// TODOd: define a "board" member variable (private) as a 2D char array of BOARD_SIZE x BOARD_SIZE // initialize it with BLANKs var board =Array( BOARD_SIZE, { Array( BOARD_SIZE, { BLANK } )
- double[] D = { 14, 17, 10, 30, 7, 25, 50}; How to refer the element 25 in the above array declaration? a. D(5) b. D(6) c. D[5] d. D[25]JAVA programming language DescriptionYour job is to write your own array list (growable array) that stores elements that are objects of a parentclass or any of its child classes but does not allow any other type of objects to be stored. You will createa general data class and two specific data classes that inherit from that class. You will then write thearray list to hold any objects of the general data class. Finally, you will test your array list using JUnittests to prove that it does what it should.DetailsYour array list must be named DataList. Start with an array with room for 10 elements. Keep all elementscontiguous (no blank places) at the low end of the indices. When the array is full, grow it by doubling thesize. (Do not use any built-in methods to copy the array elements. Write your own code to do this.) Youdo not have to shrink the array when elements are removed. The array list must have the followingpublic methods (listed in UML style where GenClass is your general data…You need to generate a (5x12) rain matrix (Rain[5][12]) that contains the average rainfall over 12 months for a 5 year period. You program should do the following steps: Create a 5x12 integer rainfall matrix Create a 5 element array of int pointers(int * Rain[5]) and assign each pointer to the address of the first element of each row Populate the elements of the matrix with pseudo-random numbers having a range from 0-100 Use the rand( ) function to generate your temperatures. The output of rand() should be mod with 100 (rand()%100) in order to get reasonable rainfall values. Init the random number generator with long seed = srand(67) This task should be performed by a function, void RainGen(int* Rain[ ], int R, int C), that populates all the matrix entries. After generating all rainfall matrix entries, print the entire matrix using the function, void Print(int* Rain[ ], int R, int C); Calculate the total monthly Rainfall per year for the entire five years. Use the following…