#define BUFSIZE 10 char buf [BUFSIZE]; fd = open("foo.txt", O_RDONLY) ; while (read(fd, buf, BUFSIZE) > 0); Assuming neither open() nor read() returns an error, what does buf contain after this code is executed? In the figure below, show the contents of each byte of the buffer: For an ASCII character, put it in quotes (e.g., for a space, put ' '); if a byte contains zero, write Ø; if its contents are unknown, put a question mark (no quotes).
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he file “foo.txt” is exactly 16 bytes long, and contains the 16
ASCII characters “Now is the time.” in that order. Suppose the code below is executed.
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- File System: It is highly useful in file system handling where for example the file allocation table contains a sequential list of locations where the files is split up and stored on a disk. Remember that overtime it is hard for an OS to find disk space to cover the entire file so it usually splits these up into chunks across the physical hard drive and stores a sequential list of links together as a linked list. Write an algorithm for the above problem and analyse the efficiency of the algorithm.Exercise 1: Write a main program that reads the elements of a 2 x 2 integer matrix, A, from the user. It then performs the following tasks: • prints the matrix row-by-row using a nested looping structure, • adds all matrix elements in row 0 using a looping structure and prints the sum. For example, for matrix, A| [i 3 A[2][2] = 7 9 The Sample Session will be as follows: CA Microsoft Visual Studio Debug Console Enter element at row 0 column 0: 1 Enter element at row e column 1: 3 Enter element at row 1 column 0: 7 Enter element at row 1 column 1: 9 The matrix entered by the user is: 13 7 9 Sum of row 0 elements: 4 C:\Users\User\source\repos \Project1\Debug\Project1.exe (process 52912) exited with code 0. Press any key to close this windowAddress of Array//Write the output of each cout statement.//Assume the size of ints to be 4 bytes.//Assume the size of pointers to ints to be 8 bytes.int main() {int a[3][3]={{1,2,3},{4,5,6},{7,8,9}};cout << sizeof(a) << endl: //1: ___________________________cout << sizeof(a+0) << endl: //2: _____________________________cout << sizeof(*(a+0)) << endl: //3: _____________________________cout << sizeof(**a) << endl; //4: ____________________________cout << sizeof(&a) << endl; //5: _____________________________Assume the address of "a" is 0x7ffee2fef9e0cout << a + 1 << endl; //6: ________________________________________cout << *a + 1 << endl; //7: ________________________________________cout << **a + 1 << endl; //8: _______________________________________cout << &a << endl; //9: __________________________________________cout << &a + 1 << endl; //10:…
- Reuse Files Add-ins Media Links Comments Header & Footer void show byte(byte_pointer start, int len) { Q2 int i; for(i=0; įIn C program language, You are to read 10 numbers from a data file into an array named List. Create another 10 element array named Reverse that is to contain the same items as List but in reverse order. For example, the first element in List will be placed in the last position of Reverse, the second element in List will be placed in the second-to-last position in Reverse, etc. After Reverse has been created, output the contents of both arrays.Task 5: Unscramble You will write a program that takes in 2 files: a dictionary file and a file listing jumbled words. Your binary will be called unscramble and will be run using unscramble The file contains a bunch of scrambled words, one word per line. Your job is to print out these jumbles words, 1 word to a line. After each jumbled word, print a list of real dictionary words that could be formed by unscrambling the jumbled word. The dictionary words that you have to choose from are in the file. As an example, the starter package contains two sample input files and the result should look as follows. The order that you display the dictionary words on each line can be different; however, the order that you print out the jumbled words should be identical to the order in your input. The sample out below is skipping a few lines to save handout space (your output must not omit these lines). nwae: wean anew wane eslyep: sleepy rpeoims: semipro imposer promise ettniner: renitent.…QUESTION 4 Suppose an array has 8 elements. The loop control variable of a for loop used to process this array should step through the index positions from to O a. 0, 8 Ob.1,7 Oc. 0, 7 Od. 1,8Write every task in C++ programming language using arrays, array input/output and array operations. Task 1: Write a program that reads a text file which has a poem written in it. (Write down the poem yourself in a text file manually). Your program should display that poem and count total number of lines in the file. Task 2: Write a program that inputs the names of five cities from user in a string and stores/write them in a file city.txt Task 3: Write a program that reads the records stored in students.txt file and display them.Enter the values of matrix A shown below as elements in a SciLab file: ( 9 8 5 A= 7 9 5 7 5 4 A= [ ]Assume the following list of keys: 16, 38, 54, 80, 22, 65, 55, 48, 64, 95, 5,100, 58, 25, 36 This list is to be sorted using quicksort as discussed in this chapter. Use pivot as the middle element of the list. a.) Give the resulting list after one call to the partition b.) Give the resulting list after two calls to the partitionIn C++ Write a code snippet to automatically increase the size of the dynamic array prayerBox[10] if it becomes full while reading data in from a file.Write the following code in C Write a program that creates the following struct (you can give it whatever name you want): char name[100]; int age; float weight; Create the following menu system: Add a Record Display All Records Quit When the user selects (1) you will prompt them for a name, age, and weight. You will insert the record into the linked list which will be alphabetically ordered by name (first letter of full name). When the user selects (2) you will display all records currently in the list. This program will not use an array, but it will use a linked list of structs. The program will allow for an unlimited number of records. The only limit will the amount of available RAM.SEE MORE QUESTIONS