Question

Use the language c++ and answer the followig questions:

1) Write a function that will take an empty array of size 25 as input and modify each element such that the array stores values from 1 to 25.
2) Write a function to print this array to show your output.
3) Write a function to iterate through that array and print whether or not a number is: even, odd, and prime.

... Make sure to call your functions in main() and show your output!

Answer 1

#include<iostream>
#include<iomanip>

using namespace std;
int prime(int n)
{
int check = 0,j;

for( j=2;j<=n/2;j++)//for loop
{
if(n%j==0)
{
check = 1;
break;
}
}
return check;
}

void insert_in_arry(int arr[])
{
int i;
for(i=0;i<25;i++)
{
arr[i]=i+1;
}
}
void print(int arr[])
{
int i;
for(i=0;i<25;i++)
cout<<arr[i]<<" ";
cout<<endl;
}
void print_even_odd_prime(int arr[])
{
int i;
cout<<"Even number: ";
for(i=0;i<25;i++)
{
if(arr[i]%2==0)
cout<<arr[i]<<" ";
}
cout<<"\nOdd number: ";
for(i=0;i<25;i++)
{
if(arr[i]%2!=0)
cout<<arr[i]<<" ";
}
cout<<"\nprime number: ";
for(i=2;i<25;i++)
{
if(!prime(i))
cout<<i<<" ";
}
cout<<endl;
}
int main()
{
int arr[25];
insert_in_arry(arr);
print(arr);
print_even_odd_prime(arr);

return 0;
}