array soluchan

#include<iostream>
using namespace std;

int main()
{
    int s,i,a[40],b[40],c[80],k=0;
    cout<<"Enter the size : ";
    cin>>s;
    cout<<"Enter elements of first array : ";
    for(i=0;i<s;i++)
    cin>>a[i];
    cout<<"Enter elements of second array : ";
    for(i=0;i<s;i++)
    cin>>b[i];
    for(i=0;i<2*s;i+=2)
    {
        c[i]=a[k]*5;
        k++;
    }
    k=s-1;
    for(i=1;i<2*s;i+=2)
    {
        c[i]=b[k]*2;
        k--;
    }
    cout<<"new array :\n";
    for(i=0;i<2*s;i++)
    cout<<c[i]<<" ";
    return 0;
}