diff --git a/cv5/program.c b/cv5/program.c index 58d6447..0f4be4a 100644 --- a/cv5/program.c +++ b/cv5/program.c @@ -5,73 +5,65 @@ #define MAX_NAME_LENGTH 100 #define MAX_BUFFER_LENGTH 256 -// Štruktúra pre uchovanie informácií o študentovi +// Structure to store student information typedef struct { char name[MAX_NAME_LENGTH]; int votes; } Student; -// Porovnávacia funkcia pre zoradenie študentov podľa počtu hlasov a mena +// Comparison function for sorting students by votes and name int compare_students(const void *a, const void *b) { const Student *student_a = (const Student *)a; const Student *student_b = (const Student *)b; - // Najprv porovnajte počet hlasov + // First compare by number of votes if (student_a->votes != student_b->votes) { - return student_b->votes - student_a->votes; // Zoradiť zostupne + return student_b->votes - student_a->votes; // Sort in descending order } - // Ak majú rovnaký počet hlasov, porovnajte podľa mena + // If votes are tied, compare lexicographically by name return strcmp(student_a->name, student_b->name); } int main() { - // Inicializácia poľa študentov + // Initialize array to store students Student students[MAX_BUFFER_LENGTH]; int num_students = 0; - // Načítanie hlasov zo štandardného vstupu + // Read votes from standard input char buffer[MAX_BUFFER_LENGTH]; while (fgets(buffer, sizeof(buffer), stdin) != NULL) { - // Načítajte počet hlasov a meno študenta - char *token = strtok(buffer, "\x20"); - if (token == NULL) { - fprintf(stderr, "Chyba: Neplatný formát vstupu.\n"); - return 0; - } - int votes = atoi(token); - - token = strtok(NULL, "\n"); - if (token == NULL) { - fprintf(stderr, "Chyba: Neplatný formát vstupu.\n"); - return 0; - } + // Read number of votes and student's name + int votes; char name[MAX_NAME_LENGTH]; - strncpy(name, token, MAX_NAME_LENGTH); + if (sscanf(buffer, "%d %99[^\n]", &votes, name) != 2) { + fprintf(stderr, "Error: Invalid input format.\n"); + return 1; + } - // Uložte študenta do poľa + // Store student in array strncpy(students[num_students].name, name, MAX_NAME_LENGTH); students[num_students].votes = votes; num_students++; - // Kontrola prekročenia maximálnej veľkosti poľa študentov + // Check for exceeding maximum number of students if (num_students >= MAX_BUFFER_LENGTH) { - fprintf(stderr, "Chyba: Príliš veľa študentov.\n"); - return 0; + fprintf(stderr, "Error: Too many students.\n"); + return 1; } } - // Ak neboli načítané žiadne dáta, vypíšte chybovú správu + // Print error message if no records were retrieved if (num_students == 0) { - fprintf(stderr, "Chyba: Žiadne záznamy načítané.\n"); - return 0; + fprintf(stderr, "Error: No records retrieved.\n"); + return 1; } - // Zoradenie študentov podľa počtu hlasov a mena + // Sort students by number of votes and name qsort(students, num_students, sizeof(Student), compare_students); - // Výpis výsledkov - printf("Vysledky:\n"); + // Print results + printf("Results:\n"); for (int i = 0; i < num_students; i++) { printf("%d %s\n", students[i].votes, students[i].name); }