Typing Tutor

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#define MAX_WORD_LENGTH 20

// Node structure for linked list
typedef struct WordNode {
    char text[MAX_WORD_LENGTH];
    struct WordNode *next;
} WordNode;

// Structure to track user scores
typedef struct Score {
    int correct;
    int total;
    time_t start_time;
    time_t end_time;
} Score;
// Function to add a word to the linked list
void addWord(WordNode **head, const char *word) {
    WordNode *newNode = (WordNode *)malloc(sizeof(WordNode));
    strcpy(newNode->text, word);
    newNode->next = *head;
    *head = newNode;
}

// Function to free the linked list
void freeWords(WordNode *head) {
    WordNode *tmp;
    
    while (head != NULL) {
        tmp = head;
        head = head->next;
        free(tmp);
    }
}
// Function to load words into the linked list
void loadWords(WordNode **head) {
    char *sampleWords[] = {"apple", "banana", "cherry", "date", "elderberry"};
    int sampleCount = sizeof(sampleWords) / sizeof(sampleWords[0]);
    
    for (int i = 0; i < sampleCount; i++) {
        addWord(head, sampleWords[i]);
    }
}

// Function to start the typing test
void startTypingTest(WordNode *head, Score *score) {
    char input[MAX_WORD_LENGTH];
    WordNode *current = head;
    score->correct = 0;
    score->total = 0;
    score->start_time = time(NULL);
    
    while (current != NULL) {
        printf("Type the word: %s\n", current->text);
        scanf("%s", input);
        
        if (strcmp(input, current->text) == 0) {
            score->correct++;
        }
        score->total++;
        current = current->next;
    }
    
    score->end_time = time(NULL);
}

// Function to display the results
void displayResults(Score score) {
    double time_taken = difftime(score.end_time, score.start_time);
    printf("Correct words: %d\n", score.correct);
    printf("Total words: %d\n", score.total);
    printf("Accuracy: %.2f%%\n", (double)score.correct / score.total * 100);
    printf("Time taken: %.2f seconds\n", time_taken);
    printf("Words per minute: %.2f WPM\n", (double)score.correct / time_taken * 60);
}
// Main function
int main() {
    WordNode *wordList = NULL;
    Score score;
    
    loadWords(&wordList);
    startTypingTest(wordList, &score);
    displayResults(score);
    freeWords(wordList);
    
    return 0;
}