# Answered Essay: b) Describe how the variables “p” and “list” are related.

b) Describe how the variables “p” and “list” are related.

c) Add a reverse function that creates an array and returns a pointer to that array. Test your code in the main function.

#include <iostream>
#include <algorithm>
using namespace std;

void printArray(int* const list, int size)
{
for (int i = 0; i < size; i++)
cout << list[i] << ” “;
cout << endl;
}

int main()
{
int list[] = {4, 2, 3, 6, 5, 1};
printArray(list, 6);

int* min = min_element(list, list + 6);
int* max = max_element(list, list + 6);
cout << “The min value is ” << *min << ” at index ”
<< (min – list) << endl;
cout << “The max value is ” << *max << ” at index ”
<< (max – list) << endl;

random_shuffle(list, list + 6);
printArray(list, 6);

sort(list, list + 6);
printArray(list, 6);

int key = 4;
int* p = find(list, list + 6, key);
if (p != list + 6)
cout << “The value ” << *p << ” is found at position ”
<< (p – list) << endl;
else
cout << “The value ” << *p << ” is not found” << endl;

return 0;
}

List contains the list of integer value which is also called as array.

P contains pointer value with store the address of find()

Quetion C:

Here is code:

#include <iostream>

#include <algorithm>

using namespace std;

void printArray(int* const list, int size)

{

for (int i = 0; i < size; i++)

cout << list[i] << ” “;

cout << endl;

}

// reverse function

int* reverse()

{

int list[] = {4, 2, 3, 6, 5, 1};

int *array;

array = list; // assign list to pointer

return array;

}

int main()

{

int* list = reverse();

printArray(list, 6);

int* min = min_element(list, list + 6);

int* max = max_element(list, list + 6);

cout << “The min value is ” << *min << ” at index ”

<< (min – list) << endl;

cout << “The max value is ” << *max << ” at index ”

<< (max – list) << endl;

random_shuffle(list, list + 6);

printArray(list, 6);

sort(list, list + 6);

printArray(list, 6);

int key = 4;

int* p = find(list, list + 6, key);

if (p != list + 6)

cout << “The value ” << *p << ” is found at position ”

<< (p – list) << endl;

else

cout << “The value ” << *p << ” is not found” << endl;

return 0;

}

Output:

All the algorithm function give you error because you need to send as array not as pointer

Pages (550 words)
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