Homework 3

#include<iostream>
using namespace std;
int main()
{
    cout<<"1 : read and print array a[10]\n";
    int a[10],i;
    for(i=0;i<=9;i++)
    {
        cout<<"["<<i<<"]";
        cin>>a[i];
    }
    for(i=0;i<=9;i++)
    {
        cout<<a[i]<<"\t";
    }
    cout<<"\n---------------------------------------\n";
    cout<<"2 : Ask user to give number now tell user whether that number is present in array or not\n";
    int x,k=0;
    cout<<"\nGive a number : ";cin>>x;
    for(i=0;i<=9;i++)
    {
        if(x==a[i])
        {
            cout<<"The number is in array Ok\n";
            k++;
        }
    }
    if(k==0)
    cout<<"Not found \n";
    cout<<"\n---------------------------------------\n";
    cout<<"3 : read 20 int inputs from user \n";
    int b[20];
    for(i=0;i<=19;i++)
    {
        cout<<"["<<i<<"]";
        cin>>b[i];
    }
    int p=0,n=0,o=0,e=0,r=0;
    for(i=0;i<20;i++)
    {
        if(b[i]>0)
        {p++;
        }
        if(b[i]<0)
        {n++;
        }
        if(b[i]%2==1)
        {o++;
        }
        if(b[i]%2==0)
        {e++;
        }
        if(b[i]==0)
        {r++;
        }
    }
    cout<<"The positive number : "<<p<<endl;
    cout<<"The negative number : "<<n<<endl;
    cout<<"The odd number : "<<o<<endl;
    cout<<"The even number : "<<e<<endl;
    cout<<"The 0 number : "<<r<<endl;
    cout<<"\n---------------------------------------\n";
    cout<<"4 : Read array and copy all the elements in another array but in reverse order \n";
    int s[10],y[10];
    for(i=0;i<10;i++)
    {
        cout<<"["<<i<<"]";
        cin>>s[i];
    }
    for(i=0;i<10;i++)
    {
        y[i]=s[i];
    }
    for(i=9;i>=0;i--)
    {
        cout<<y[i]<<"\t";
    }
}