Reap What You Sow

In the cursed land of earth where all crops are failing, Tom Cooper is trying to grow $n$ acres of crop this season, and he can grow one crop in an acre. Tom has two sets of $n$ crop seeds each. In the two sets, the two $i^{th}$ crop seeds are the same type crop. The first set of $n$ crop seeds are independent and each of them require their own preparation and can be grown independently. The $i