C# :: Aufgabe #262
6 Lösungen
Array von Zahlen in die nächstgelegene durch 5 teilbare Zahl umwandeln
Anfänger - C#
von Gustl
- 08.05.2019 um 20:08 Uhr
Schreibe ein Programm welches aus einem Array von Dezimalzahlen diese Zahlen in die nächstgelegene durch 5 teilbare Zahl umwandeln.
Etwa so:
Etwa so:
Konsolenausgabe:
7.1 => 5
8.4 => 10
-2.4 => 0
-2.6 => -5
-8.3 => -10
Lösungen:
C#-Code
using System;
using static System.Console;
using System.Collections.Generic;
namespace Aufgabe_262 //Array von (reellen) Zahlen in die (jeweils) nächstgelegene (restlos) durch 5 teilbare Zahl umwandeln
{
class Program
{
static void Main()
{
bool bo_loop = true;
Random rand = new Random();
double xmax = 1000.0;
List<double> l_double = new List<double>();
List<int> l_int = new List<int>();
while (bo_loop)
{
double x = xmax * (rand.NextDouble() - 0.5);
l_double.Add(x);
int i = (int)(5.0 * Math.Round(x / 5.0));
l_int.Add(i);
WriteLine($"{x.ToString("0.0000"), 10} -> {i, 5} for next double press any key (ESC for exit)");
ConsoleKeyInfo ki = ReadKey(true);
bo_loop = ki.Key != ConsoleKey.Escape;
}
double[] a_double = l_double.ToArray();
int[] a_int = l_int.ToArray();
WriteLine("ready");
ReadKey();
}
}
}
C#-Code
using System;
using System.Linq;
public class Program
{
public static void Main()
{
double[] _in = {7.1, 8.4, -2.4, -2.6, -8.3};
double[] _out = _in.Select(x => round(x, 5)).ToArray();
for(int i = 0; i < _in.Length; i++){
Console.WriteLine("{0} => {1}", _in[i], _out[i]);
}
}
private static int round(int val, int factor){
return (int)(Math.Round((double)val / (double)factor, 0) * factor);
}
private static float round(float val, float factor){
return (float)(Math.Round((double)val / (double)factor, 0) * factor);
}
private static double round(double val, double factor){
return Math.Round(val / factor, 0) * factor;
}
private static decimal round(decimal val, decimal factor){
return Math.Round(val / factor, 0) * factor;
}
}
C#-Code
using System;
using System.Collections.Generic;
using System.Text;
namespace Teilung5
{
class Program
{
static void Main(string[] args)
{
float[] arr = new float[5];
arr[0] = 7.1f;
arr[1] = 8.4f;
arr[2] = -2.4f;
arr[3] = -2.6f;
arr[4] = -8.3f;
foreach(float i in arr)
{
int ganz = Convert.ToInt32(i/5);
float dez = i / 5;
float div = dez - ganz;
int wert;
if (div >= 0.5)
{
wert = (ganz + 1) * 5;
Console.WriteLine(i + " => " + wert);
}
else
{
wert = ganz * 5;
Console.WriteLine(i + " => " + wert);
}
}
Console.ReadLine();
}
}
}
C#-Code
using System;
using System.Collections.Generic;
namespace Split5
{
class Program
{
static void Main(string[] args)
{
List<int> numbers = new List<int> { 15, 1, 5, 88, -14, 7, -21, 42, 29, 36, 74 };
foreach (int number in numbers)
{
double erg;
double m = number % 5;
if (m < 2.5)
erg = number - m;
else
erg = number + (5 - m);
Console.WriteLine(number + " => " + erg);
}
Console.Read();
}
}
}
C#-Codeusing System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Train
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Wie lang soll der Array werden?");
int zahl = int.Parse(Console.ReadLine());
for (int i = 0; i <= zahl-1; i++)
{
Console.WriteLine("Geben sie eine Zahl ein");
double[] arr = new double[zahl];
arr[i] = double.Parse(Console.ReadLine());
double[] arrumgewandelt = new double[zahl];
if (arr[i] % 5 == 0)
{
arrumgewandelt[i] = arr[i];
}
if ((arr[i] % 5) != 0 && (arr[i] % 5) <= 2.5 && arr[i] > 0)
{
arrumgewandelt[i] = arr[i] - (arr[i] % 5);
}
if ((arr[i] % 5) != 0 && (Math.Abs(arr[i] % 5)) <= 2.5 && arr[i] < 0)
{
arrumgewandelt[i] = (arr[i] - (arr[i] % 5));
}
if ((arr[i] % 5) != 0 && (arr[i] % 5) > 2.5 && arr[i] > 0)
{
arrumgewandelt[i] = (arr[i] - (arr[i] % 5) + 5);
}
if ((arr[i] % 5) != 0 && (Math.Abs(arr[i] % 5)) > 2.5 && arr[i] < 0)
{
arrumgewandelt[i] = (arr[i] - (arr[i] % 5) - 5);
}
Console.WriteLine("Die Zahl " + arr[i] + " lautet umgewandelt " + arrumgewandelt[i]);
}
Console.ReadLine();
}
}
}
C#-Codeusing System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Train
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Wie lang soll der Array werden?");
int zahl = int.Parse(Console.ReadLine());
for (int i = 0; i <= zahl-1; i++)
{
Console.WriteLine("Geben sie eine Zahl ein");
double[] arr = new double[zahl];
arr[i] = double.Parse(Console.ReadLine());
double[] arrumgewandelt = new double[zahl];
if (arr[i] % 5 == 0)
{
arrumgewandelt[i] = arr[i];
}
if ((arr[i] % 5) != 0 && (arr[i] % 5) <= 2.5 && arr[i] > 0)
{
arrumgewandelt[i] = arr[i] - (arr[i] % 5);
}
if ((arr[i] % 5) != 0 && (Math.Abs(arr[i] % 5)) <= 2.5 && arr[i] < 0)
{
arrumgewandelt[i] = (arr[i] - (arr[i] % 5));
}
if ((arr[i] % 5) != 0 && (arr[i] % 5) > 2.5 && arr[i] > 0)
{
arrumgewandelt[i] = (arr[i] - (arr[i] % 5) + 5);
}
if ((arr[i] % 5) != 0 && (Math.Abs(arr[i] % 5)) > 2.5 && arr[i] < 0)
{
arrumgewandelt[i] = (arr[i] - (arr[i] % 5) - 5);
}
Console.WriteLine("Die Zahl " + arr[i] + " lautet umgewandelt " + arrumgewandelt[i]);
}
Console.ReadLine();
}
}
}