Count the number of cows on the farm after N years

ClassCow
 

 
{
 

Public IntAge = 1;// Initialize the age to 1
 

 
}
 

 
/// <Summary>
 

/// A farm has a cow. A cow is only one year old and has a calf only when it is four years old. After four years old, a calf is generated every year.
 

/// Assume that every time a cow is born, and that the cow has been born and has been born for 4 years, there is no death. How many cows are there after N years?
 

 
/// </Summary>
 

 
Static VoidMain (String[] ARGs)
 

{
 

 
List <cow> cows =NewList <cow> ();
 

Cow cow =NewCow ();
 

 
Cows. Add (COW );
 

IntN = 10;// 10 years
 

For(IntI = 1; I <= N; I ++)
 

 
{
 

// If cows. Count is directly used as the cycle end condition, the following generic set loops will change dynamically, resulting in more loops.
 

IntTemp = cows. count;
 

For(IntJ = 0; j <temp; j ++)
 

 
{
 

 
Cows [J]. Age ++;// One year after the cycle, age + +
 

If(COWS [J]. age> = 4)// Traverse all the cows in the set. If the age is greater than or equal to 4 years old, a calf is generated.
 

{
 

 
Cow =NewCow ();
 

Cows. Add (COW );
 

 
}
 

}
 

 
}
 

Console. writeline ("{0} years later, there were {1} cows on the farm", N, cows. Count );
 

 
Console. Readline ();
 

 
}