Question

Please answer using C ++ programming language ONLY! We have only used <stdio.h> if that helps. This is a basic course and the furthest we have gone is BASIC arrays.

Write the code for the following problems using arrays. Write what would go in the “int main()” part of the program. For these problems, the entire program and program output is not needed. Just include what goes in the int main() part of the program.

1. Declare an integer array named stuff with 20 elements

2. Initialize each element of the array stuff to value 100.

3. Ask the user to enter each value of the array stuff (prompt and input)

4. Print all elements of the stuff array

5. Print all elements of the array stuff in reverse order

6. Sum all elements of the array stuff

7. Determine the average of all elements in the array stuff

8. Find the largest element in the array stuff

9. Subtract 1 from every element of the stuff array.

10. Divide all even-numbered elements in the stuff array (stuff[0],stuff[2],..stuff[20]) by 5, i.e. stuff[2] = stuff[2]/5

Answer 1

#include<iostream>
using namespace std;

int main ()
{
// 1. Declare an integer array named stuff with 20 elements
int stuff[20];

// 2. Initialize each element of the array stuff to value 100.
for(int i = 0; i<20; i++)
{
stuff[i] = 100;
}

// 3. Ask the user to enter each value of the array stuff (prompt and input)
for(int i = 0; i<20; i++)
{
cout<<"Enter element "<<i<<": ";
cin>>stuff[i];
}

//4. Print all elements of the stuff array
for(int i = 0; i<20; i++)
{
cout<<stuff[i]<<" ";
}
cout<<endl;
// 5. Print all elements of the array stuff in reverse order
for(int i = 19; i>=0; i--)
{
cout<<stuff[i]<<" ";
}
// 6. Sum all elements of the array stuff
int sum = 0;
for(int i = 0; i<20; i++)
{
sum+=stuff[i];
}

// 7. Determine the average of all elements in the array stuff
double average = (double)sum/20;

// 8. Find the largest element in the array stuff
int max = stuff[0];
for(int i = 1; i<20; i++)
{
if(max<stuff[i]){
max = stuff[i];
}
}

// 9. Subtract 1 from every element of the stuff array.
for(int i = 0; i<20; i++)
{
stuff[i] = stuff[i]-1;
}

// 10. Divide all even-numbered elements in the stuff array by 5
for(int i = 0; i<20; i+=2)
{
stuff[i] = stuff[i]/5;
}

return 0;
}