' : AreaPerPerson () , . , , AreaPerPerson (). ,
areaPP = house.AreaPerPerson ();
areaPP ( house).
, AreaPerPerson () int. , . , , , , , , . , double, double.
, , , . , areaPP, AreaPerPerson () , WriteLine (), .
Console.WriteLine(" :\ " +
house.Floors + " \ " + house.Occupants + " \ " + house.Area +
" . , \ " + house.AreaPerPerson() +
" ");
, WriteLine (), house. AreaPerPerson (), WriteLine(). , AreaPerPerson () , Building. , .
if(.AreaPerPerson() > 2.AreaPerPerson())
Console.WriteLine(" ");
. , , . , , , . . , . . , , .
, . ChkNum Is Prime (), true, , . false. , IsPrimeO bool.
// .
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Using System;
class ChkNum {
// true, // , public bool IsPrime(int ) { if ( <= 1) return false;.
for (int i=2; i <= x/i; i++) if ((x %i) == 0) return false;
Return true;
}
}
class ParmDemo {
static void Main() {
ChkNum ob = new ChkNum();
for (int i=2; i < 10; i++)
if(ob.IsPrime(i)) Console.WriteLine(i + " ."); else Console.WriteLine(i + " .");
}
}
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IsPrime () , . . , Is Prime (). . Is Prime () , 2. , Is Prime () , 2. 3, 4 .. , , Is Prime () , , .
, . , . ChkNum, LeastComFactor (), . , , .
// , .
Using System;
class ChkNum {
// true, // , public bool IsPrime(int ) { if( <= 1) return false;
for (int i=2; i <= x/i; i++) if((x %i) == 0) return false;
Return true;
}
// , public int LeastComFactor(int a, int b) { int max;
if(IsPrime(a) || IsPrime(b)) return 1;
max = a < b? a: b;
for (int i=2; i <= max/2; i++)
if(((a%i) == 0) && ((b%i) == 0)) return i; return 1;
}
}
class ParmDemo {
static void Main() {
ChkNum ob = new ChkNum(); int a, b;
for (int i=2; i < 10; i++)
if(ob.IsPrime(i)) Console.WriteLine(i + ."); else Console.WriteLine(i + " .");
= 7; b = 8;
Console.WriteLine(" " + + " " + b + " " + ob.LeastComFactor(, ));
= 100;
= 8;
Console.WriteLine(" " + + " " + b + " " + ob.LeastComFactor(, ));
= 100;
= 75;
Console.WriteLine(" " + + " " + b + " " + ob.LeastComFactor(, ));
}
}
: LeastComFactor (), . .
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