completed the task

students/mustafa/main.go

@@ -0,0 +1,131 @@
+package main
+
+import (
+	"bufio"
+	"errors"
+	"flag"
+	"fmt"
+	"log"
+	"math/rand"
+	"os"
+	"strings"
+	"time"
+)
+
+type Quiz struct {
+	Question string
+	Answer   string
+}
+
+func ReadFile(filePath string) ([]Quiz, error) {
+	if filePath == "" {
+		return nil, nil
+	}
+	file, err := os.Open(filePath)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+	var quizzes []Quiz
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if line == "" {
+			continue
+		}
+		parts := strings.Split(line, ",")
+		if len(parts) != 2 {
+			continue
+		}
+		quizzes = append(quizzes, Quiz{
+			Question: parts[0],
+			Answer:   parts[1],
+		})
+	}
+	if err := scanner.Err(); err != nil {
+		return nil, err
+	}
+	return quizzes, nil
+}
+func getInput(input chan string) {
+	for {
+		in := bufio.NewReader(os.Stdin)
+		result, err := in.ReadString('\n')
+		if err != nil {
+			log.Fatal("Error reading input:", err)
+			continue
+		}
+		input <- result
+	}
+}
+func startQuiz(quiz []Quiz, duration time.Duration) int {
+	input := make(chan string)
+	timer := time.After(duration * time.Second)
+	go getInput(input)
+	fmt.Println("Starting Quiz...")
+	totalScore := 0
+	for _, q := range quiz {
+		score, err := checkAnswer(q.Question, q.Answer, input, timer)
+		if err != nil {
+			fmt.Println("Error:", err)
+			break
+		} else if score == 0 {
+			fmt.Println("Wrong Answer!")
+		} else {
+			totalScore += score
+		}
+	}
+	return totalScore
+}
+func checkAnswer(question string, answer string, input <-chan string, timer <-chan time.Time) (int, error) {
+	fmt.Println(question)
+	select {
+	case <-timer:
+		return 0, errors.New("time is up")
+	case ans := <-input:
+		if strings.Compare(strings.TrimSpace(ans), strings.TrimSpace(answer)) == 0 {
+			fmt.Println("Correct Answer!")
+			return 1, nil
+		} else {
+			return 0, nil
+		}
+	}
+}
+
+func init() {
+	flag.Int("time", 30, "Time limit for all questions in seconds")
+	flag.Int("s", 0, "Shuffle the question order (default: 0)")
+	flag.Parse()
+	fmt.Println("no. of flags", flag.NFlag())
+	if flag.NFlag() == 0 {
+		fmt.Println("No flags provided. Using default time limit of 30 seconds.")
+	}
+	if flag.Lookup("time") == nil {
+		fmt.Println("No time flag provided. Using default time limit of 30 seconds.")
+	} else {
+		fmt.Println("Time limit set to:", flag.Lookup("time").Value)
+	}
+
+}
+
+func main() {
+	quizzes, err := ReadFile("problems.csv")
+	if err != nil {
+		log.Fatal("Error reading file:", err)
+		return
+	}
+	if len(quizzes) == 0 {
+		log.Fatal("No quizzes found in the file.")
+		return
+	}
+	fmt.Println("Shuffle flag:", flag.Lookup("s").Value)
+	if flag.Lookup("s") != nil && flag.Lookup("s").Value.(flag.Getter).Get().(int) == 1 {
+		for i := range quizzes {
+			j := rand.Intn(i + 1)
+			quizzes[i], quizzes[j] = quizzes[j], quizzes[i]
+
+		}
+	}
+	totalScore := startQuiz(quizzes, time.Duration(flag.Lookup("time").Value.(flag.Getter).Get().(int)))
+	fmt.Println("Total Score:", totalScore)
+}

students/mustafa/problems.csv

@@ -0,0 +1,13 @@
+5+5,10
+7+3,10
+1+1,2
+8+3,11
+1+2,3
+8+6,14
+3+1,4
+1+4,5
+5+1,6
+2+3,5
+3+3,6
+2+4,6
+5+2,7