Problem No 20

#include<iostream>
using namespace std;

int main()
{
    int a[100],key,n;
    cin>>n;

    for(int i=0; i<n; i++)
    {
        cin>>a[i];
    }
    cout<<endl;


    for(int i=0; i<n; i++)
    {
        cout<<a[i]<<" ";
    }
    cout<<endl;

    cin>>key;
    cout<<endl;

    for(int i=0; i<n-1; i++)
    {
       if(a[i]==key){
        cout<<key<<" Found at index "<<i;
       }
    }

    return 0;
}