add cv2

cv2/program.c

@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+struct pizza
+{
+    char* name;
+    float price;
+};
+
+int comparator(const void* a, const void* b)
+{
+
+    struct pizza A = *(struct pizza*)a;
+    struct pizza B = *(struct pizza*)b;
+
+    if (A.price < B.price)
+    {
+        return -1;
+    }
+    if (A.price == B.price)
+    {
+        return 0;
+    }
+    if (A.price > B.price)
+    {
+        return 1;
+    }
+}
+
+int main(int argc, char const *argv[])
+{
+    int itemc = 0;
+    char find[20];
+    struct pizza menu[20];
+    char buf[50];
+    float price  = 0;
+    memset(buf, 0, 50);
+    memset(find, 0, 20);
+
+
+    while (fgets(buf, 50, stdin) != NULL)
+    {
+        buf[strcspn(buf, "\n")] = '\0';
+
+        if (scanf("%f", &price) != 1)
+        {
+            break;
+        }
+
+        getchar();
+
+        struct pizza piteml = 
+        {
+            .name = (char*)malloc(strlen(buf) * sizeof(char*)),
+            .price = price
+        };
+
+        strcpy(piteml.name,buf);
+
+        menu[itemc] = piteml;
+        
+        itemc++;
+        if (itemc >= 20)
+        {
+            break;
+        }
+    }
+
+    qsort(menu, itemc, sizeof(struct pizza), comparator);
+
+    for (int i = 0; i < itemc; i++)
+    {
+        printf("%s\n%.6f\n", menu[i].name, menu[i].price);
+    }
+
+    for (int i = 0; i < itemc; i++)
+    {
+        free(menu[i].name);
+    }
+    return 0;
+}