Which of the following functions allocates multiple blocks of memory, each block of the a) malloc() b) realloc() c) calloc()
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- Create an array of four function pointers. Each pointer should point to a different function. Each of these functions should receive two integers and return a float. Using a loop call each of these functions using the addresses present in the array.Recursion Tree How many levels in this recursion tree T(n) = 2T(n/3) + n? Use log2n for log2n. What is the cost of the first level of this recursion tree T(n) = 2T(n/3) + n? What is the cost of the second level of this recursion tree T(n) = 2T(n/3) + n? Use 3n/4 for 3n divided by 4. What is the cost of the third level of this recursion tree T(n) = 2T(n/3) + n? Use 3n/4 for 3n divided by 4.The following is the difference between void and NULL pointers: Use relevant examples to back up your statement.
- using c++ and use pointer and char(don't use string): Write a class date (d, m, y), class file (name, size, creation_date) and class directory (name, directory_creation_date, array[files])Write the constuctors, destructors, set, get methods for each classCreate a directory object and fill it with its required data Find the size of the created directory object.10. Which of the following statements is TRUE about pointer? A. Two pointers can be declared as int * pointer1, pointer2:. В. A function can return a pointer value. Pointer directly references value. D. Pointer is used to pass parameter by value.Instructions: You are strictly not allowed to use anything other than pointers and dynamic memory. One function should perform one functionality only. Task 1 Write a program in C++ that reads data from a file. Create dynamic memory according to the data. Now your task is to perform the following task. Row wise Sum Column wise Sum Diagonal wise Sum Example data.txt 4 5 1.6 10.2 33.7 99 20.5 3 44 50 96.1 2 8 9 4 74 50 99 19.1 Output: Sum row wise: 165, 191, 17, 242.1 Sum col wise: 127.6, 120.1, 228.8, 118.1, 20.5 Sum diagonal wise: Not Possible Note: You are restricted to use pointers and your function should be generic. Avoid memory wastage, memory leakage, dangling pointer. Use regrow or shrink concepts if required.
- Give an example of a function with two arguments and statements that are executed when the function is called. -Provide details about the return statement and the purpose of your function. -Provide an example of an array and a vector. -Describe your experience using GitHub, GitLab, Git, or other versional control software in general. Explain what aspects of the GitHub process you are comfortable with and what areas you need more practice or help.5.How many bytes in the memory will be occupied by short int array[10] 10 Bytes 20 Bytes 40 Bytes 60 Bytes 6.Given the definition void myFunc(int a, int* b , int* c)which statement is true The values of the aliases a, band c are available to the function Only the addresses of the variables b, care available to the function myFunccannot change the variable whose value is copied to a myFunc can change the value of the variable whose address is copied into b all of the aboveMemory Allocation: Select all of the following statements that are true. The basic idea of contiguous allocation is that each process is contained in a single contiguous section of memory. When using a single-partition allocation scheme, the main memory is usually divided into three partitions. Memory partitioning schemes allow for multiprogramming. When applying the multiple-partition allocation scheme "Fixed Partitions", all partitions always have the same size. When applying the multiple-partition allocation scheme "Variable Partitions", the FirstFit allocation strategy performs best in practice. The Buddy system is prone to internal fragmentation.
- Which of the following is not true of pointers to functions? Select one: a. They contain the starting address of the function code b. They can be stored in arrays c. They can not be assigned to other function pointers d. They are dereferenced in order to call the functionWhich of the following function declarations is correct? int computeAvg(int[][] grades, int rowSize, int columnSize); int computeAvg(int grades[3][], int rowSize); int computeAvg(int grades[][3], int rowSize); int computeAvg(int grades[][], int rowSize, int columnSize); Which of the following is true for dynamically allocated arrays in C++? (select all that apply) Every element in an array has the same base type. The array will grow dynamically to accommodate additional elements. The array elements are always initialized to 0 when an array is created. Array size must be declared by a constant expression It is always a fatal error to access outside of the array bounds. The array must be explicitly deleted when the programmer is done with it. Which of the following will compile correctly? (select all that are correct) int coeffs(2); int coeffs = new int[2]; int *coeffs = new int(2); int coeffs[]; int **coeffs = new int*[2];Which one is correct for the statement? int *ptr, p ptr and p both are not pointers to integer. ptr and p, both are pointers to integer. O ptr is pointer to integer, p may or may not be. O ptr is a pointer to integer, p is not a pointer. O