using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication14
{
class Program
{
static void Main(string[] args)
{
int liczbaA = 2, liczbaB = 3, liczbaC = 4;
Console.WriteLine("Liczby rownania kwadratowego:\n");
Console.WriteLine("a: " + liczbaA + " b: " + liczbaB + "c: " + liczbaC + "\n");
if (liczbaA == 0)
{
Console.WriteLine("To nie jest rownanie kwadratowe: a=0!");
}
else
{
double delta = liczbaB * liczbaB - 4 * liczbaA * liczbaC;
if (delta < 0)
{
Console.WriteLine("delta<0");
Console.WriteLine("to rownanie nie ma rozwiązania w zbiorze liczb rzeczywistych");
}
else
{
double wynik;
if (delta == 0)
{
wynik = - liczbaB / 2* liczbaA;
Console.WriteLine("x =" + wynik);
}
else
{
wynik = (-liczbaB + Math.Sqrt(delta)) / 2 * liczbaA;
Console.WriteLine("x1 =" + wynik);
wynik = (-liczbaB - Math.Sqrt(delta)) / 2 * liczbaA;
Console.WriteLine("x2 =" + wynik);
Console.ReadKey();
}
}
Console.ReadKey();
}

}
}
}
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication16
{
class Program
{
staticvoid Main(string[] args)
{
for (inti = 1; i <= 10; i++)
{
Console.WriteLine("{0}, ", i);
}
Console.ReadKey();
}
}
}
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication16
{
class Program
{
staticvoid Main(string[] args)
{
int i, b;
for(i=0, b=1; i<20; i=i +1, b=b+1)
{
Console.WriteLine("PĘTLA DUŻA");
if(b==5)
{
Console.WriteLine("PĘTLA MNIEJSZA");
b=1;
}
}
Console.ReadKey();
}
}
}
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication16
{
class Program
{
staticvoid Main(string[] args)
{
for (int i=0; i <= 10; i = i + 1)
{
Console.WriteLine("PĘTLA");
}
Console.ReadKey();
}
}
}
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication16
{
class Program
}
staticvoid Main(string[] args)
{
for (int i=1; i <= 20; i++)
{
if(i%2!=0)
Console.Write(i+", ");
}
Console.ReadKey();
}
}
}
____________________________________________________________
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication16
{
class Program
staticvoid Main(string[] args)
{
for (int i=37; i <= 79; i++)
{
if(i%2==0)
Console.Write(i+", ");
}
Console.ReadKey();
}
}
}
_______________________________________________________________

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication16
{
class Program
staticvoid Main(string[] args)
{
for (int i = 1; i <= 10; i++)
Console.WriteLine(" Liczba to {0}, Kwadrat to {1}, Sześcian to {2}", i,i*i,i*i*i);
Console.ReadKey();
}
}
}
______________________________________________________________________________________

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication16
{
class Program
{
staticvoid Main(string[] args)
{
int i;
int n = 5;
int silnia = 1;
for(i = 1; i <= n; i++)
{
silnia = silnia * i;
Console.WriteLine(silnia);
}
Console.ReadKey();
}
}
}
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