85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#define LINE_SIZE 100
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#define POCET_JEDAL 100
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struct pizza {
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float price;
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char name[LINE_SIZE];
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};
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void delet(char* str) {
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for (int i = 0; str[i] != '\n' && str[i] != 0; i++) {
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str[i] = 0;
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}
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}
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int read_pizza(struct pizza* item) {
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char line[LINE_SIZE];
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memset(line, 0, LINE_SIZE);
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char* r = fgets(line, LINE_SIZE, stdin);
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delet(line);
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if (r != NULL && line[1] != 0) {
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char line2[LINE_SIZE];
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memset(line2, 0, LINE_SIZE);
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fgets(line2, LINE_SIZE, stdin);
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float value = strtof(line2, NULL);
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if (value == 0.0F) {
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return 0;
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}
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item->price = value;
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strcpy(item->name, line);
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return 1;
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}
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return 0;
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}
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int compare_pizza(const void* a, const void* b) {
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const struct pizza* pizza_a = (const struct pizza*)a;
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const struct pizza* pizza_b = (const struct pizza*)b;
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if (pizza_a->price < pizza_b->price) {
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return -1;
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} else if (pizza_a->price > pizza_b->price) {
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return 1;
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} else {
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return strcmp(pizza_a->name, pizza_b->name);
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}
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}
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int main() {
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struct pizza menu[POCET_JEDAL];
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memset(menu, 0, sizeof(struct pizza) * POCET_JEDAL);
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int counter = 0;
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struct pizza item;
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while (read_pizza(&item)) {
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strcpy(menu[counter].name, item.name);
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menu[counter].price = item.price;
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counter += 1;
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if (counter >= POCET_JEDAL) {
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break;
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}
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}
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qsort(menu, counter, sizeof(struct pizza), compare_pizza);
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for (int c = 0; c < counter; c++) {
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printf("%s\n", menu[c].name);
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printf("%.6f\n", menu[c].price);
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}
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return 0;
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}
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