Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Array Expander - Use Pointer Notation for the function and within the function. Use a main function and return the pointer from the ArrayExpander function to main
Transcribed Image Text:Write a function that accepts an int array and the array's size as arguments. The
function should create a new array that is twice the size of the argument array. The
function should copy the contents of the argument array to the new array and initialize
the unused elements of the second array with 0. The function should return a pointer
to the new array.
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- // New Function prototypes void showValues(const int *, int); // display 10 numbers in a line from the array void fillArray(int *, int, int, int); // fill out random numbers between low and high into the array bool searchValue(const int *, int, int); // search value from the array void sortArray( int *, int); //sort the array in an ascending order void swap(int *, int *); //swap the values Modify the code below to create 50 random numbers instead of 10 and use the above new function protoypes. In the output, remove the display of the minimum, maximum and average from the array. Modify the showValues() function to display 10 numbers in a line from the array. [Part 2] Add the two functions to sort an array in an ascending order: void sortArray(int*, int); //ascending ordervoid swap(int*, int*); In the sortArray() function called the swap() function to swap the values from two elements in the array. Code: #include <iostream>#include <iomanip>#include...arrow_forwardWhen calling a function, what exactly does the "base address of an array" refer to, and why is it relevant?arrow_forwardUsing C++ Programming language: Assume the following definition in the main() function: const int SIZE = 5; const int nums[SIZE] = { 18, 17, 12, 14, 16 }; Assume the following function call: numFunc(nums, SIZE); Write the function header that accepts these function call arguments without error. Use pointer notation for the array.arrow_forward
- What is a variable pointer? What follows? It is a variable array. Why are pointers and dynamic arrays problematic?arrow_forwardRandomize_it Write a function in C++ that takes an array as a parameter and then randomize that array, i.e. shuffles the position of the elements in random order. To randomize the array your function should perform random 100 swaps of any two elements in the array. Return the randomized array from the function.vector<int> randomize(vector<int> input){// code here}arrow_forwardC PROGRAMMING Instructions: Using the code template below, create a function that computes the average of all the elements in the array using a 'for' loop to sum the array. Use an array pointer to get the values from the array. The average is the return value from the function. Then, implement the function into the main() method. /*_____________________________________________________________________________*/ #include <stdio.h>#include <stdlib.h>int main() { float data[] = {2.5, 3.33, 4.2, 8.0, 5.1}; float sum = 0; printf("Index\tValues\n"); for(int i = 0; i < 5; i++) { printf("%d\t%f", i, data[i]); printf("\n"); sum = sum + data[i]; } sum = sum / 5; printf("Avg\t%f", sum); return 0;}arrow_forward
- When calling a function, what exactly does it imply to say that you need the "base address of an array"?arrow_forward3. Pointers – Arrays: initializing content • Using the pointer ptrArray, you now want to write values in those integers. Use a loop to go through each element in that array, and initialize them all to 42. This is done in the main. 4. Pointers – Arrays: printing • Write a function that will print the elements in the array-pointer. The function should accept a pointer to an integer, and the size of this array. The function should not return anything. Here is your function prototype: void printArray(int* ptr, int nb); • Your function needs to use a loop to go through all the elements in the array, and simply prints them on a new line. • In the main function, call this function with your pointer ptrArray and the size given by the user.arrow_forwardQUESTION 8 1) Write an InsertFirst function for a partially filled array. This function should accept all required data as input parameters. Example If an array contains 7,10,3,9,5 and the InsertFirst function is called with a value of 20, the array will become 20,7,10,3,9,5.arrow_forward
- When moved swiftly, the pointer submarines.arrow_forwardIt's important to note that the name of an array by itself is really a pointer to the first element of the array. Therefore passing an array to function is simple since you can just specify the name of the array. Are these statements true?arrow_forwardTopic: pointers, dynamic array and command line arguments Write a function named "getDynamicNumList" that accepts a count (integer) for the totalof all the numbers to obtain storage for. The function will allocate an array of integer pointers dynamically, then read in from the user that many numbers. For each number, it will allocate memory for each integer initialized it with what the userenters and save its pointer in the new array. It then returns the pointer of the array of integer pointers to the caller. The caller should print out this array based on that description.Here is an example of calling getDynamicNumList with 4. It will allocate an array of 4 pointers and read in 10, 55, 76 and 1. Each integer will have its own dynamic memory location.arrow_forward
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