Add solution for Challenges by MiladJlz (#236)

* Add solution for Challenge 2 by MiladJlz

* Add solution for Challenge 3 by MiladJlz

Author: MiladJlz

challenge-2/submissions/MiladJlz/solution-template.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"slices"
+
+)
+
+func main() {
+	// Read input from standard input
+	scanner := bufio.NewScanner(os.Stdin)
+	if scanner.Scan() {
+		input := scanner.Text()
+
+		// Call the ReverseString function
+		output := ReverseString(input)
+
+		// Print the result
+		fmt.Println(output)
+	}
+}
+
+// ReverseString returns the reversed string of s.
+func ReverseString(s string) string {
+    stringToBytes := []byte(s)
+	slices.Reverse(stringToBytes)
+	return string(stringToBytes)
+}

challenge-3/submissions/MiladJlz/solution-template.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"fmt"
+	"slices"
+)
+
+type Employee struct {
+	ID     int
+	Name   string
+	Age    int
+	Salary float64
+}
+
+type Manager struct {
+	Employees []Employee
+}
+
+// AddEmployee adds a new employee to the manager's list.
+func (m *Manager) AddEmployee(e Employee) {
+	m.Employees = append(m.Employees, e)
+}
+
+// RemoveEmployee removes an employee by ID from the manager's list.
+func (m *Manager) RemoveEmployee(id int) {
+
+	for i, v := range m.Employees {
+		if v.ID == id {
+			m.Employees = slices.Delete(m.Employees, i, i+1)
+
+		}
+	}
+}
+
+// GetAverageSalary calculates the average salary of all employees.
+func (m *Manager) GetAverageSalary() float64 {
+	if len(m.Employees) == 0 {
+		return 0
+	}
+	sum := 0.0
+	for _, v := range m.Employees {
+		sum += v.Salary
+	}
+	return sum / float64((len(m.Employees)))
+}
+
+// FindEmployeeByID finds and returns an employee by their ID.
+func (m *Manager) FindEmployeeByID(id int) *Employee {
+	for _, v := range m.Employees {
+		if v.ID == id {
+			return &v
+		}
+	}
+	return nil
+}
+
+func main() {
+	manager := Manager{}
+	manager.AddEmployee(Employee{ID: 1, Name: "Alice", Age: 30, Salary: 70000})
+	manager.AddEmployee(Employee{ID: 2, Name: "Bob", Age: 25, Salary: 65000})
+	manager.RemoveEmployee(1)
+	averageSalary := manager.GetAverageSalary()
+	employee := manager.FindEmployeeByID(2)
+
+	fmt.Printf("Average Salary: %f\n", averageSalary)
+	if employee != nil {
+		fmt.Printf("Employee found: %+v\n", *employee)
+	}
+}