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Kozar 2024-03-21 16:48:25 +01:00
parent 851703535e
commit 24629b5422
1 changed files with 13 additions and 16 deletions
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29
cv5/program.c
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@ -9,7 +9,7 @@ struct student {
int votes; int votes;
}; };
// porovnávacia funkcia pre zoradenie študentov // comparison function for sorting students
int compare(const void *a, const void *b) { int compare(const void *a, const void *b) {
struct student *student_a = (struct student *) a; struct student *student_a = (struct student *) a;
struct student *student_b = (struct student *) b; struct student *student_b = (struct student *) b;
@ -19,47 +19,44 @@ int compare(const void *a, const void *b) {
} else if (student_a->votes < student_b->votes) { } else if (student_a->votes < student_b->votes) {
return 1; return 1;
} else { } else {
// ak majú rovnaký počet hlasov, porovnajte mená // if votes are the same, compare names
return strcmp(student_a->name, student_b->name); return strcmp(student_a->name, student_b->name);
} }
} }
int main() { int main() {
// definícia poľa študentov s veľkosťou SIZE
struct student students[SIZE]; struct student students[SIZE];
// inicializácia premennej na uchovávanie veľkosti poľa
int size = 0; int size = 0;
// načítanie údajov o študentoch zo štandardného vstupu // read student data from standard input
while (1) { while (1) {
char line[SIZE]; char line[SIZE];
memset(line, 0, SIZE); memset(line, 0, SIZE);
char *r = fgets(line, SIZE, stdin); char *r = fgets(line, SIZE, stdin);
// kontrola, či je riadok prázdny // check if the line is empty
if (r == NULL || (r[0] == '\n' && strlen(r) == 1)) { if (r == NULL || (r[0] == '\n' && strlen(r) == 1)) {
// koniec vstupu // end of input
break; break;
} }
// rozparsovanie riadku a extrakcia počtu hlasov a mena študenta // parse the string and extract number of votes and student name
int votes; int votes;
if (sscanf(line, "%d %s", &votes, students[size].name) != 2) { if (sscanf(line, "%d %[^\n]", &votes, students[size].name) != 2) {
// chyba, vstup nebol v očakávanom formáte // error, input was not in expected format
// vypíšte chybovú správu a ukončite program // print error message and exit
fprintf(stderr, "Chyba: neplatný formát vstupu\n"); fprintf(stderr, "Error: invalid input format\n");
return 1; return 1;
} }
students[size].votes = votes; students[size].votes = votes;
size++; size++;
} }
// zoradenie študentov podľa počtu hlasov // sort students based on their votes
qsort(students, size, sizeof(struct student), compare); qsort(students, size, sizeof(struct student), compare);
// výpis výsledkov // print the results
printf("Výsledky:\n"); printf("Results:\n");
for (int i = 0; i < size; i++) { for (int i = 0; i < size; i++) {
printf("%d %s\n", students[i].votes, students[i].name); printf("%d %s\n", students[i].votes, students[i].name);
} }