Add cv2/program.c

cv2/program.c

@@ -0,0 +1,71 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define LINE_SIZE 100
+#define LIST_SIZE 100
+
+struct pizza {
+    char name[LINE_SIZE];
+    float price;
+};
+
+int read_item(struct pizza *item) {
+    
+    if (fgets(item->name, LINE_SIZE, stdin) == NULL || item->name[0] == '\n') {
+        return 0; 
+    }
+    
+    item->name[strcspn(item->name, "\n")] = 0;
+
+   
+    if (scanf("%f", &item->price) != 1 || item->price <= 0) {
+        
+        return 0;
+    }
+    
+    while (getchar() != '\n');
+
+    return 1; 
+}
+
+int compare_pizza(const void *a, const void *b) {
+    struct pizza *pizza_a = (struct pizza *)a;
+    struct pizza *pizza_b = (struct pizza *)b;
+
+    if (pizza_a->price < pizza_b->price) return -1;
+    if (pizza_a->price > pizza_b->price) return 1;
+    return strcmp(pizza_a->name, pizza_b->name); 
+}
+
+int read_pizza_list(struct pizza *list) {
+    int count = 0;
+    while (count < LIST_SIZE) {
+        struct pizza item;
+        memset(&item, 0, sizeof(struct pizza));
+        if (read_item(&item)) {
+            list[count++] = item; 
+        } else {
+            break; 
+        }
+    }
+    return count; 
+}
+
+void print_pizza_list(struct pizza *list, int count) {
+    for (int i = 0; i < count; i++) {
+        printf("%s\n%.6f\n", list[i].name, list[i].price);
+    }
+}
+
+int main() {
+    struct pizza list[LIST_SIZE];
+    memset(list, 0, sizeof(list)); 
+
+    int count = read_pizza_list(list); 
+    qsort(list, count, sizeof(struct pizza), compare_pizza); 
+
+    print_pizza_list(list, count); 
+
+    return 0;
+}