Delete musterloesungen.md
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# Calculator
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```go
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package main
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import (
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"fmt"
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)
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func calculate(a, b int, operator rune) int {
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switch operator {
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case '+':
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return a + b
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case '-':
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return a - b
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case '*':
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return a * b
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case '/':
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if b != 0 {
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return a / b
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}
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fmt.Println("Division durch Null ist nicht erlaubt.")
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return 0
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case '%':
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if b != 0 {
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return a % b
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}
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fmt.Println("Modulo durch Null ist nicht erlaubt.")
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return 0
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default:
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fmt.Println("Ungültiger Operator.")
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return 0
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}
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}
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func main() {
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fmt.Println(calculate(2, 5, '+')) // 7
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fmt.Println(calculate(2, 5, '-')) // -3
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fmt.Println(calculate(2, 5, '*')) // 10
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fmt.Println(calculate(10, 5, '/')) // 2
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fmt.Println(calculate(5, 3, '%')) // 2
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}
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```
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# Student
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```go
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package main
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import (
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"fmt"
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)
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// Student repräsentiert einen Studenten
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type Student struct {
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Vorname string
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Nachname string
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Matrikelnummer string
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Alter int
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}
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// Konstruktor für die Klasse Student
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func NewStudent(vorname, nachname, matrikelnummer string, alter int) *Student {
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return &Student{
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Vorname: vorname,
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Nachname: nachname,
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Matrikelnummer: matrikelnummer,
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Alter: alter,
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}
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}
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// Greet gibt eine Begrüßungsnachricht zurück
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func (s *Student) Greet() string {
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return fmt.Sprintf("Hallo, mein Name ist %s %s.", s.Vorname, s.Nachname)
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}
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// Überschreiben der String-Methode für eine lesbare Darstellung
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func (s *Student) String() string {
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return fmt.Sprintf("Student: %s %s, Matrikelnummer: %s, Alter: %d", s.Vorname, s.Nachname, s.Matrikelnummer, s.Alter)
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}
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func main() {
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// Erstellen eines neuen Studenten mit dem Konstruktor
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student := NewStudent("Franz", "Herta", "123456", 20)
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// Aufrufen der Greet-Methode
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fmt.Println(student.Greet()) // Hallo, mein Name ist Franz Herta.
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// Ausgabe der String-Methode
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fmt.Println(student) // Student: Franz Herta, Matrikelnummer: 123456, Alter: 20
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}
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```
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# R-P-S
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```go
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package main
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import (
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"fmt"
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"math/rand"
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"time"
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)
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const (
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ROCK = 'r'
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PAPER = 'p'
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SCISSORS = 's'
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)
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func main() {
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rand.Seed(time.Now().UnixNano())
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playerScore, computerScore := 0, 0
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choices := []rune{ROCK, PAPER, SCISSORS}
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for round := 1; round <= 3; round++ {
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var playerChoice rune
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fmt.Printf("Runde %d: Dein Zug ([r]rock, [p]aper, [s]cissors)? ", round)
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fmt.Scanf("%c\n", &playerChoice)
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computerChoice := choices[rand.Intn(len(choices))]
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switch {
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case playerChoice == computerChoice:
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fmt.Printf("Unentschieden - Du: %c, Computer: %c - [%d:%d]\n", playerChoice, computerChoice, playerScore, computerScore)
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case (playerChoice == ROCK && computerChoice == SCISSORS) || (playerChoice == PAPER && computerChoice == ROCK) || (playerChoice == SCISSORS && computerChoice == PAPER):
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playerScore++
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fmt.Printf("Du hast gewonnen - Du: %c, Computer: %c - [%d:%d]\n", playerChoice, computerChoice, playerScore, computerScore)
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default:
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computerScore++
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fmt.Printf("Der Computer hat gewonnen - Du: %c, Computer: %c - [%d:%d]\n", playerChoice, computerChoice, playerScore, computerScore)
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}
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}
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fmt.Printf("Ergebnis - Du %d Punkt(e), Computer %d Punkt(e)\n", playerScore, computerScore)
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}
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```
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