เมธอด 2 และไฟล์ข้อมูล ฉบับสมบูรณ์

ข้อที่ 1

using System;
class MainClass
{
    static void add_bonus(){
        s1 = s1 + bonus;
s2 = s2 + bonus;
s3 = s3 + bonus;
    }
    public static void Main(string[] args)
    {
        int s1 = 1, s2 = 2, s3 = 3;
        Console.Write("Enter Bonus: ");
        int bonus = int.Parse(Console.ReadLine());
        add_bonus(ref s1, ref s2, ref s3, bonus);
        Console.WriteLine("{0}, {1}, {2}",s1,s2,s3);
        Console.ReadKey();
    }
}

ข้อที่ 2

using System;
class MainClass
{
    static void swap(){
int x = a;
a = b;
b = x;
    }
    public static void Main(string[] args)
    {
        int sum = 0;
        Console.Write("Enter a: ");
        int a = int.Parse(Console.ReadLine());
        Console.Write("Enter b: ");
        int b = int.Parse(Console.ReadLine());
        swap();
        Console.WriteLine("Swap a and b");
        Console.WriteLine("a={0} b={1}",a,b);
        Console.ReadKey();
    }
}

ข้อ 3

using System;
class RefExample
{
    static void ReadTwoNums()
    {
        Console.WriteLine("Enter two number:");
        a = int.Parse(Console.ReadLine());
        b = int.Parse(Console.ReadLine());
    }
    static void Main()
    {
        int n1 = 0, n2 = 0;
        ReadTwoNums();
        Console.WriteLine("Numbers are {0} and {1}", n1, n2);
        Console.ReadKey();
    }
}

ข้อ 4

using System;
2: class MainClass {
3:     static void ReadPoint( )
4:     {
5: Console.Write("Enter x-coordinate: ");
6:             x = double.Parse(Console.ReadLine());
7:             Console.Write("Enter y-coordinate: ");
8:             y = double.Parse(Console.ReadLine());
9:     }
10:
11:     static double Distance( )
12:     {
13:             double c = Math.Sqrt((ax-bx)*(ax-bx)+(ay-by)*(ay-by)); return c;
14:     }
15:
16:     static void Main()
17:     {
18:             double ax, ay, bx, by;
19:             Console.WriteLine("Point A:");
20:             ReadPoint(out ax, out ay);
21:             Console.WriteLine("Point B:");
22:             ReadPoint(out bx, out by);
23:             Console.WriteLine("The distance between A and B is {0:f2}",
24:                               Distance(ax,ay,bx,by));
25:     }
26: }

ข้อ 5

using System;
class MainClass {
    static int Profit(int x)
    {
        int a =1000+ (50*x )+(150*x*x)-((int)Math.Pow(x,3));
return a;
    }

    static void Main()
    {
        int a, b;
        Console.Write("Enter A:");
        a = int.Parse(Console.ReadLine());
        Console.Write("Enter B:");
        b = int.Parse(Console.ReadLine());

        int best = Profit(a);
        int bestAt = a;

        while(a<b)
{ a++;
if (Profit(a)>best)
{best = Profit(a);
bestAt = a;
}
}


        Console.WriteLine("Best profit is {0} at {1}", best, bestAt);
    }
}

ข้อ 6

using System;
class MainClass {
    static int h, d, n;

    /* this method checks if y is out of the well of depth h */
    static bool IsOut(int y, int h)
    {
        if (d>=h) return true; if (y>=h) return true; else return false;
    }

    static void ClimbUp(ref int y)
    {
        y+=d;
    }

    static void FallDown(ref int y)
    {
        y-=n;
    }

    static void Main()
    {
        h = int.Parse(Console.ReadLine());
        d = int.Parse(Console.ReadLine());
        n = int.Parse(Console.ReadLine());

        int day = 1;
        int y = 0;
        while(!IsOut(y,h))
        {
            ClimbUp(ref y); if (y<h) FallDown(ref y); else break;
            day++;
        }
        Console.WriteLine("Get out on day {0}", day);
    }
}

ข้อ 7

using System;
class MainClass
{
    /* method IsSquare checks if y is a square. */
    static bool IsSquare(int y)
    {
        double s = Math.Sqrt( y); 
if(s%1==0) 
return true; 
else 
return false; 
    }

    /* method IsSquareFactor checks if f is a square factor of x */
    static bool IsSquareFactor(int f, int x)
    {
        if(x%f==0) 
{if(IsSquare( f)) 
return true; 
else 
return false;} 
else 
return false;

    }

    public static void Main(string[] args)
    {
        int x = int.Parse(Console.ReadLine());
        int i = 1;
        while()
        {
            if()
                Console.Write("{0} ", );
            i++;
        }
        Console.WriteLine();
    }
}

ข้อ 8

using System;

class Program
{
  static void CountPlusMinus()
  {
    plus =0;
minus =0;
int x = int.Parse(Console.ReadLine());
while (x!=0)
{
if (x>0)
plus ++;
else
minus ++;
x = int.Parse(Console.ReadLine());
}

  }

  public static void Main(string[] args)
  {
    int plus, minus;
    CountPlusMinus();
    Console.WriteLine("Positive: {0}",plus);
    Console.WriteLine("Negative: {0}",minus);
    Console.ReadLine();
  }
}

ข้อ 9

using System;
using System.IO;

namespace hellofile
{
class Program
{
public static void Main(string[] args)
{
StreamReader reader = new StreamReader("name.txt");
string name = reader.ReadLine();
string a = reader.ReadLine();
Console.WriteLine(name);
Console.WriteLine(a);
Console.ReadLine();
reader.Close();
}
}
}

ข้อ 10

using System;
using System.IO;

namespace hellofile
{
class Program
{
public static void Main(string[] args)
{
StreamReader reader = new StreamReader("name.txt");
string name = reader.ReadLine();
string a = reader.ReadLine();
Console.WriteLine(a);
Console.WriteLine(name);
Console.ReadLine();
reader.Close();
}
}
}

ข้อ 11

using System;


namespace hellofile
{
    class Program
    {
        public static void Main(string[] args)

{
            StreamReader reader =
            int a = int.Parse();
            int b =
            int c =
            Console.WriteLine(a+b+c);
            Console.ReadLine();
            reader.
        }
    }
}

ข้อ 12

using System;
using System.IO;

namespace hellofile
{
    class Program
    {
        public static void Main(string[] args)
        {
            StreamReader reader = 
            int n = int.Parse();
            int i = 0;
            int total = 0;
            while(i < n)
            {
                int s = int.Parse(reader.ReadLine());
{
if (s >= 0)
total = total + s;

}
i++;

            }
            Console.WriteLine(total);
            Console.ReadLine();
            reader.Close();
        }
    }
}

ข้อ13

using System;
using System.IO;
namespace moving_average
{
  class Program
  {
    static void Update()
    {
      if (x!=0){
total += x;
avr = total/(n+1);
n++;
}

    }

    public static void Main(string[] args)
    {
      StreamReader reader = new StreamReader("input.txt");
      int n = 0;
      double total = 0;
      double avr = 0;
      double x;
      do {
        x = double.Parse(reader.ReadLine());
        if(x != 0)
        {
          Update();
          Console.WriteLine("{0:f3} {1:f3}", total, avr);
        }
      } while();
      reader.Close();
      Console.ReadLine();
    }
  }
}

ข้อ 14

using System;
using System.IO;
namespace moving_average
{
  class Program
  {
    static double total = 0;
static double avr = 0;
static int i = 1;


    static void Update(double x)
    {
      total+=x;
avr = total/i;
i++;

    }

    public static void Main(string[] args)
    {
      StreamReader reader = new StreamReader("input.txt");
      double x;
      do {
        x = double.Parse(reader.ReadLine());
        if(x != 0)
        {
          Update(x);
          Console.WriteLine("{0:f3} {1:f3}", total, avr);
        }
      } while();
      reader.Close();
      Console.ReadLine();
    }
  }
}

ข้อ 15

using System;
using System.IO;

namespace hellofile
{
class Program
{
public static void Main(string[] args)
{
StreamReader reader = new StreamReader("input.txt");
int n = int.Parse(reader.ReadLine());
int i = 1;
int a = 0;
int b = 0;
int c = 0;
while (i<=n)
{
string x = reader.ReadLine();
if (x=="A")
a++;
else if (x=="B")
b++;
else if (x=="C")
c++;
i++;
}
Console.Write("{0} {1} {2}",a,b,c);
Console.Read();

}
}
}

ข้อ 16

[hide line #]
using System;

namespace program
{
class Program
{
static int x=1,ans=0,eror=0;
static string y;
static int low=0, high=1001;

public static void Main(string[] args)
{
while (true)
{
x = int.Parse(Console.ReadLine());
if (x==0)
break; 
y = Console.ReadLine();
if (y=="E")
ans = x;
else if (y=="L")
if (x>=low)
low = x; 
if (low>=high)
eror = -1;
else if (y=="H")
if (x<=high)
high = x;
if (high<=low)
eror = -1;
}
//Console.WriteLine("{0},{1},{2}",high,low,eror);
if(high>=1001 || low <=0){
Console.WriteLine("No solution"); 
}
else if(ans<=low && ans!=0){
Console.WriteLine("No solution");
}
else if(high-low==2)
{ 
Console.WriteLine("Solution is {0}",low+1);
}
else if(ans!=0)
{ 
Console.WriteLine("Solution is {0}",ans);
}
else if(high-low>2 || eror!=-1){
Console.WriteLine("Solution in range {0} - {1}",low+1,high-1);
}
else
Console.WriteLine("No solution");
Console.Read();
}
}
}