package main import( "encoding/json" "fmt" "math" "strings" "os" )

type Student struct { Name string RollNo int }

type SecretStudent struct { SecretCode string ChunkSize int Length int StudentDetail Student }

func main() { student1 := SecretStudent{ SecretCode: "abcdefghijkl", ChunkSize: 4, Length: 12, StudentDetail: Student{ Name: "aaa", RollNo: 1, }, }

student2 := SecretStudent{ SecretCode: "abcdefghijkl", ChunkSize: 5, Length: 12, StudentDetail: Student{ Name: "bbb", RollNo: 2, }, }

student3 := SecretStudent{ SecretCode: "abcdefghijkl", ChunkSize: 3, Length: 12, StudentDetail: Student{ Name: "ccc", RollNo: 3, }, }

// Create a channel to communicate between go routines channel := make(chan []byte)

// Start the teacher go routine go func() { // Modify the secret code of each student student1.modifySecretCode() student2.modifySecretCode() student3.modifySecretCode()

// Convert each student to a byte array and write to the channel channel <- toByteArray(student1) channel <- toByteArray(student2) channel <- toByteArray(student3) }()

// Start the management go routine go func() { for i := 0; i < 3; i++ { // Read from the channel studentBytes := <-channel

// Convert the byte array back to a SecretStudent object var student SecretStudent fromByteArray(studentBytes, &student)

// Display the received student //fmt.Println("Received bbb:", student)

// Display the fixed secret code fmt.Println("Fixed secret code:", student.SecretCode) } os.Exit(0) }()

// Wait for the go routines to complete var input string fmt.Scanln(&input)

}

// Helper function to modify the secret code func (s *SecretStudent) modifySecretCode() { // Pad the secret code with zeroes if necessary fmt.Println("Received student SecretCode:", s.SecretCode) if s.Length%s.ChunkSize != 0 { pad := int(math.Ceil(float64(s.Length)/float64(s.ChunkSize))) * s.ChunkSize s.SecretCode = s.SecretCode + strings.Repeat("0",pad-s.Length) } s.Length = len(s.SecretCode) // Divide the secret code into chunks chunks := make([][]byte, s.Length/s.ChunkSize) for i := 0; i < s.Length; i += s.ChunkSize { end := i + s.ChunkSize if end > s.Length { end = s.Length } chunks = append(chunks, []byte(s.SecretCode[i:end])) }

// Reverse the order of the chunks for i, j := 0, len(chunks)-1; i < j; i, j = i+1, j-1 { chunks[i], chunks[j] = chunks[j], chunks[i] }

// Concatenate the chunks to form the modified secret code s.SecretCode = "" for _, chunk := range chunks { s.SecretCode += string(chunk) } }

// function to fix the secret code func (s *SecretStudent) fixSecretCode() { // Divide the secret code into chunks chunks := make([][]byte, s.Length/s.ChunkSize) for i := 0; i < s.Length; i += s.ChunkSize { end := i + s.ChunkSize if end > s.Length { end = s.Length } chunks = append(chunks, []byte(s.SecretCode[i:end])) }

// Reverse the order of the chunks for i, j := 0, len(chunks)-1; i < j; i, j = i+1, j-1 { chunks[i], chunks[j] = chunks[j], chunks[i] }

// Concatenate the chunks to form the fixed secret code s.SecretCode = "" for _, chunk := range chunks { s.SecretCode += string(chunk) } }

// function to convert a SecretStudent to a byte array func toByteArray(s SecretStudent) []byte { bytes, _ := json.Marshal(s) return bytes }

// function to convert a byte array to a SecretStudent func fromByteArray(bytes []byte, s *SecretStudent) { json.Unmarshal(bytes, s) } ======================== please provide me end to end explaination