Question

Write a program that works with two arrays of the same size that are related to each other in some way (or parallel arrays). Your two arrays must be of different data types. For example, one array can hold values that are used in a formula that produces the contents of the second array. Some examples might be:

 from a previous program, populations and the associated flowrates for those populations (an int array of populations and a double array of the associated flowrate)

 a series of values and the square roots of those integers (an int array of values and a double array of associated square roots)

 a series of values and an indication of whether or not each value is odd or even (an int array and a bool array)

1. Declare and initialize a constant to represent the size of both arrays (at least 10 positions)

2. Declare and initialize your first array

3. Declare and initialize your second array, based on the data in your first array

4. Output the contents of both arrays in neat columns with headers

Optional suggestions (good to do, not required) 1. Try to break your program up into different functions 2. Use user input to initialize the first array

Use this code as a guide;

#include <iostream>

#include <string>

#include <iomanip>

#include <cmath>

using namespace std;

#define PI 3.14159265

const int ARRAY_SIZE = 25;

void initializeArray(double arr[], int size);

void printArrays(int arrOne[], double arrTwo[], int size);

int main(int argc, char *argv[])

{

int arrayOne[ARRAY_SIZE];

double arrayTwo[ARRAY_SIZE];

int index;

for (index = 0; index < ARRAY_SIZE; index++)

{

arrayOne[index] = index + 1;

}

initializeArray(arrayTwo, ARRAY_SIZE);

printArrays(arrayOne, arrayTwo, ARRAY_SIZE);

cin.ignore();

cin.get();

}

void initializeArray(double arr[], int size)

{

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

{

arr[index] = cos((index+1) * PI / 180);

}

}

void printArrays(int arrOne[], double arrTwo[], int size)

{

cout << setw(6) << "degree" << setw(10) << "cosine" << endl;

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

{

cout << setw(3) << arrOne[index] << setw(14) <<

arrTwo[index] << endl;

}

}

Answer 1

#include <iostream>

#include <string>

#include <iomanip>

using namespace std;

const int ARRAY_SIZE = 20;

void initializeArray(bool arr[], int size);

void printArrays(int arrOne[], bool arrTwo[], int size);

int main(int argc, char *argv[])

{

int arrayOne[ARRAY_SIZE];

bool arrayTwo[ARRAY_SIZE];

int index;

for (index = 0; index < ARRAY_SIZE; index++)

{

arrayOne[index] = index + 1;

}

initializeArray(arrayTwo, ARRAY_SIZE);

printArrays(arrayOne, arrayTwo, ARRAY_SIZE);

cin.ignore();

cin.get();

}

void initializeArray(bool arr[], int size)

{

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

{

// compute even or odd using % operator
// where a%b returns reminder after dividing a by b
arr[index] = index%2;

}

}

void printArrays(int arrOne[], bool arrTwo[], int size)

{

cout << setw(6) << "NUMBER" << setw(10) << "EVEN\?" << endl;
cout << "----------------"<< endl;
for (int index = 0; index < size; index++)

{

cout << setw(3) << arrOne[index]<<setw(12);

//formatting output from 1 or 0 to words true or false respectively
if(arrTwo[index]==1){
cout<<" True";
}
else{
cout<<" False";
}

cout<<endl;
}

cout << "----------------"<< endl;
}

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Answer 2

Code

#include <iostream>

#include <string>

#include<iomanip>

using namespace std;

const int ARRAY_SIZE = 10;

void initializeFirstArray(int arr[]);

void initializeSeondArray(int arry[], bool isPrime[]);

void printArrays(int arrOne[], bool arrTwo[]);

bool isPrime(int);

int main()

{

int arrayOne[ARRAY_SIZE];

bool primeCheck[ARRAY_SIZE];

initializeFirstArray(arrayOne);

initializeSeondArray(arrayOne,primeCheck);

printArrays(arrayOne,primeCheck);

}

void initializeFirstArray(int arr[])

{

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

{

cout<<"Enter a intger : ";

cin>>arr[i];

}

}

void initializeSeondArray(int arryInt[], bool prime[])

{

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

{

if(isPrime(arryInt[i]))

prime[i]=true;

else

prime[i]=false;

}

}

bool isPrime(int a)

{

for(int i=2;i<a/2;i++)

if(a%i==0)

return false;

return true;

}

void printArrays(int arrOne[], bool arrTwo[])

{

cout << setw(6) << "NUMBER" << setw(10) << "Prime\?" << endl;

cout << "----------------"<< endl;

for (int index = 0; index < ARRAY_SIZE; index++)

{

cout << setw(3) << arrOne[index]<<setw(12);

//formatting output from 1 or 0 to words true or false respectively

if(arrTwo[index]==1)

{

cout<<" True";

}

else

{

cout<<" False";

}

cout<<endl;

}

cout << "----------------"<< endl;

}

output

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Enter a intger Enter a intger 23 Enter a intger 17 Enter a intger : 200 Enter a intger 19 Enter a intger39 Enter a intger:5 Enter a intger30 Enter a intger37 Enter a intger:45 NUMBER Prime? False True False True False True False True False 3e Press any key to continue .. . - 22:36 O Type here to search sf ^騰ョ4x ENG 02-04-2019