o take the array of 20% extra capacity. Alternatively, I can take an array of pointers and allocate memory of each record dynamically only when needed. If a pointer takes 8 bytes and we are storing 100 records, how many bytes do I save by using an array of pointers instead of an arr
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I need to store student n records in a program. Each record needs 50 bytes to store. If I store the records in a simple array of student-type structures, I have to take the array of 20% extra capacity. Alternatively, I can take an array of pointers and allocate memory of each record dynamically only when needed. If a pointer takes 8 bytes and we are storing 100 records, how many bytes do I save by using an array of pointers instead of an array of structures?
Just write the number, do not type "bytes". For example, instead of "90 bytes", just type "90".
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- A bank's customer records are to be stored in a file and read into a set of arrays so that a customer's record can be accessed randomly by account number. Create the file by entering five customer records, with each record consisting of an integer account number (starting with account number 1000), a first name (maximum of 10 characters), a last name (maximum of 15 characters), and a double-precision number for the account balance. After the file is created, write a C++ program that requests a user-input account number and displays the corresponding name and account balance from the file. (Hint: Read the data in the file into an array, and then search the array fo Ccount number.)A bank’s customer records are to be stored in a file and read into a set of arrays sothat a customer’s record can be accessed randomly by account number. Create the file byentering five customer records, with each record consisting of an integer account number(starting with account number 1000), a first name (maximum of 10 characters), a last name(maximum of 15 characters), and a double-precision number for the account balance.After the file is created, write a C++ program that requests a user-input account number anddisplays the corresponding name and account balance from the file. (Hint: Read the data in thefile into an array, and then search the array for the account number.)Design and implement a Java application for saving and operating on unique numbers in an array (the Java file name should be “Array4Uniques.java"). Its specific requirements are listed below: • It first asks for input for the size of the array, that is, the number of unique numbers to be stored on the array; • It then asks for two positive integers, min and max, to be used to define a sequence of random numbers, in the range between min and mæx inclusive; • The application will now keep generating a random number in the range defined above, if the random number is unique (that is not on the array by now), store this random number to the array. This process will continue until the array is full. • Hint: you may đefine a boolean variable alreacyOnArray for testing whether the newly generated random is already on the array. • At the end, print out the unique numbers on the array and the total number of random numbers generated for the whole process. • Use the following testing samples (2…
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- Vectors store a linear arrangement of values, accessed by a single index. Two-dimensional arrays store a tabular arrangement of values, accessed by two indexes, for example matrix[i][j], where i is the row index, and j is the column index. A common two-dimensional array that you should have seen early on in your education is a multiplication table. For example, here is the multiplication table up to 5 x 5: 1 2 3 4 5 1 1 2 3 4 5 2 2 4 6 8 10 3 3 6 9 12 15 4 4 8 12 16 20 5 5 10 15 20 25 Write a program that asks the user for the number of rows and columns for a multiplication table and prints out the corresponding results.Write a JAVA program to add two matrix using pointers. JAVA program to input two matrix from user and find sum of both matrices using dynamic array.Example InputInput matrix1: 123456789Input matrix2: 987654321 OutputSum of both matrices:10 10 1010 10 1010 10 10In this assignment, you will write a Java program that generates an n × n matrix filled with elements from 1 to n 2 in spiral order, where n is a given input size. A spiral matrix is a matrix of the type which puts numbers in a circular fashion rather than in row-major or column-major fashion. The elements stored in the spiral matrix can be in clockwise (See Figure 1), or in counter clockwise (See Figure 2). Figure 1: A clockwise values Figure 2: A counter-clockwise values You may name your Java file name as MatrixApp.java, and write two methods that generate two versions of spiral matrices given any input matrix size n, and print out secondary diagonal values (See Figures 3-4 red-colored values). The detailed descriptions of two methods are as follows: 1 Figure 3: A clockwise spiral matrix with red-colored values should be printed /* * @n: input matrix size * * print out the secondary diagonal values from top to down * e.g., for n = 6, you will print 6, 24, 34, 36, 30, 16 */ public…