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du2 - 5

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mr314ot 2025-10-09 18:58:08 +02:00
parent 421f2ea58b
commit 51aef6edb2
1 changed files with 20 additions and 10 deletions
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30
du2/program.c
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@ -41,17 +41,27 @@ int read_pizza(struct pizza *item) {
return 1;
}
//porovnanie pre qsort
int compare_pizza(const void *a, const void *b){
const struct pizza *pa = (const struct pizza *)a;
const struct pizza *pb = (const struct pizza *)b;
if (pa->price < pb->price) return -1;
if (pa->price > pb->price) return 1;
return strcmp(pa->name, pb->name);
// porovnanie dvoch položiek
int greater(struct pizza *a, struct pizza *b) {
if (a->prize > b->prize)
return 1;
if (a->prize < b->prize)
return 0;
return strcmp(a->name, b->name) > 0;
}
// sort
void sort_pizzas(struct pizza *list, int count) {
for (int i = 0; i < count - 1; i++) {
for (int j = 0; j < count - i - 1; j++) {
if (greater(&list[j], &list[j + 1])) {
struct pizza tmp = list[j];
list[j] = list[j + 1];
list[j + 1] = tmp;
}
}
}
}
int main() {
struct pizza list[MAXITEMS];
@ -68,7 +78,7 @@ int main() {
}
//triedenie
qsort(list, count, sizeof(struct pizza), compare_pizza);
sort_pizzas(list, count);
//vypis listka
for (int i = 0; i < count; i++){