89 lines
1.6 KiB
C
89 lines
1.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define LINESIZE 256
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#define MAXITEMS 100
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// struktura pre polozku jed. listka
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struct pizza {
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char name[LINESIZE];
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float price;
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};
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//funkcia na nacitanie jednej polozky
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int read_pizza(struct pizza *item) {
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char line1[LINESIZE];
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char line2[LINESIZE];
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//nazov
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if (!fgets(line1, sizeof(line1), stdin)) {
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return 0;
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}
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line1[strcspn(line1, "\n")] = '\0';
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if (line1[0] == '\0') {
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return 0;
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}
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//cena
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if (!fgets(line2, sizeof(line2), stdin)) {
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return 0;
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}
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line2[strcspn(line2, "\n")] = '\0';
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if (sscanf(line2, "%f", &value) != 1) {
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return 0;
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}
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strncpy(item->name, line1, LINESIZE - 1);
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item->name[LINESIZE - 1] = '\0';
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return 1;
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}
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// porovnanie dvoch položiek
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int greater(struct pizza *a, struct pizza *b) {
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if (a->price > b->price)
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return 1;
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if (a->price < b->price)
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return 0;
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return strcmp(a->name, b->name) > 0;
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}
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// sort
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void sort_pizzas(struct pizza *list, int count) {
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for (int i = 0; i < count - 1; i++) {
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for (int j = 0; j < count - i - 1; j++) {
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if (greater(&list[j], &list[j + 1])) {
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struct pizza tmp = list[j];
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list[j] = list[j + 1];
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list[j + 1] = tmp;
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}
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}
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}
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}
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int main() {
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struct pizza list[MAXITEMS];
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int count = 0;
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//citanie listka
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while (count < MAXITEMS){
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struct pizza tmp;
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if (!read_pizza(&tmp)){
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break;
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}
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list[count++] = tmp;
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}
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//triedenie
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sort_pizzas(list, count);
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//vypis listka
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for (int i = 0; i < count; i++){
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printf("%s\n", list[i].name);
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printf("%.6f\n", list[i].price);
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}
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return 0;
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}
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