diff --git a/cv5/program.c b/cv5/program.c index 0377801..32231dc 100644 --- a/cv5/program.c +++ b/cv5/program.c @@ -9,7 +9,7 @@ struct student { int votes; }; -// function to compare two students based on their votes +// porovnávacia funkcia pre zoradenie študentov int compare(const void *a, const void *b) { struct student *student_a = (struct student *) a; struct student *student_b = (struct student *) b; @@ -19,48 +19,47 @@ int compare(const void *a, const void *b) { } else if (student_a->votes < student_b->votes) { return 1; } else { - // if the votes are the same, compare the names + // ak majú rovnaký počet hlasov, porovnajte mená return strcmp(student_a->name, student_b->name); } } int main() { - // define an array of students with SIZE elements + // definícia poľa študentov s veľkosťou SIZE struct student students[SIZE]; - // initialize a variable to keep track of the size of the array + // inicializácia premennej na uchovávanie veľkosti poľa int size = 0; - // read in the student data from standard input + // načítanie údajov o študentoch zo štandardného vstupu while (1) { - // allocate memory for the line char line[SIZE]; memset(line, 0, SIZE); char *r = fgets(line, SIZE, stdin); - // check if the line is empty - if (r == NULL) { - // end of input + // kontrola, či je riadok prázdny + if (r == NULL || (r[0] == '\n' && strlen(r) == 1)) { + // koniec vstupu break; } - // parse the string and extract the number of votes and the student name + // rozparsovanie riadku a extrakcia počtu hlasov a mena študenta int votes; if (sscanf(line, "%d %s", &votes, students[size].name) != 2) { - // error, the input was not in the expected format - // print an error message and exit - fprintf(stderr, "Error: invalid input format\n"); + // chyba, vstup nebol v očakávanom formáte + // vypíšte chybovú správu a ukončite program + fprintf(stderr, "Chyba: neplatný formát vstupu\n"); return 1; } students[size].votes = votes; size++; } - // sort the students based on their votes + // zoradenie študentov podľa počtu hlasov qsort(students, size, sizeof(struct student), compare); - // print the results - printf("Results:\n"); + // výpis výsledkov + printf("Výsledky:\n"); for (int i = 0; i < size; i++) { printf("%d %s\n", students[i].votes, students[i].name); }