Merge pull request #10 from Nikita-Popov-3824B1PM2/main

Popov Nikita

17_popov/Kassa/FileName.c

@@ -0,0 +1,192 @@
+#include "stdio.h"
+#include "stdlib.h"
+#include "string.h"
+#include "ctype.h"
+#include "locale.h"
+
+struct Product
+{
+    char* name;
+    double price;
+    double quantity;
+};
+
+typedef struct Product Product;
+
+Product create_product(char* name, double price, double quantity)
+{
+    Product product;
+    product.name = name;
+    product.price = price;
+    product.quantity = quantity;
+    return product;
+}
+
+Product inventory[] =
+{
+    {"áàíàí", 200.0, 10.0},
+    {"ÿáëîêî", 202.0, 2.0},
+    {"àïåëüñèí", 30.0, 15.0},
+    {"êàðòîøêà", 40.0, 100.0}
+};
+
+int string_length(char* s)
+{
+    int length = 0;
+    while (s[length] != '\0')
+    {
+        length++;
+    }
+    return length;
+}
+
+int number_length(double n)
+{
+    int length = 3;
+    while (n > 1.0)
+    {
+        n /= 10;
+        length++;
+    }
+    if (n > 0.01)
+    {
+        return length;
+    }
+    else
+    {
+        return length + 1;
+    }
+}
+
+Product find_product(Product* product)
+{
+    char* name = product->name;
+    double quantity = product->quantity;
+    Product result;
+    for (int i = 0; i < 4; i++)
+    {
+        if (strcmp(name, inventory[i].name) == 0)
+        {
+            if (quantity <= inventory[i].quantity)
+            {
+                result = create_product(name, inventory[i].price * quantity, quantity);
+            }
+            else
+            {
+                result = create_product(name, inventory[i].price * inventory[i].quantity, inventory[i].quantity);
+            }
+            return result;
+        }
+    }
+
+    return create_product(name, 0.0, 0.0);
+}
+
+// Ôóíêöèÿ äëÿ âûâîäà èíôîðìàöèè î òîâàðå è îáùåé ñòîèìîñòè
+void print_invoice(Product* products, Product* receipt, int count, double total)
+{
+    printf("\nÍàçâàíèå òîâàðà\tÖåíà\tÊîëè÷åñòâî\n");
+    for (int i = 0; i < count; i++) {
+        if (receipt[i].quantity > 0.0) {
+            printf("%s", receipt[i].name);
+            for (int j = 0; j < 13 - string_length(receipt[i].name); j++)
+            {
+                printf(".");
+            }
+            printf("%.2lf", receipt[i].price);
+            for (int j = 0; j < 14 - number_length(receipt[i].price); j++)
+            {
+                printf(".");
+            }
+            printf("%.2lf\n", receipt[i].quantity);
+        }
+        else {
+            printf("Òîâàð %s íå íàéäåí.\n", products[i].name);
+        }
+    }
+    printf("\nÎáùàÿ ñòîèìîñòü - %.2lf\n", total);
+}
+int main()
+{
+    system("chcp 1251");
+
+    setlocale(LC_ALL, "Russian");
+
+    int n;
+    char buffer[256];
+    double total = 0.0;
+
+    printf("Ââåäèòå êîëè÷åñòâî òîâàðîâ, êîòîðûå õîòèòå êóïèòü:\n");
+    scanf_s("%d", &n);
+    getchar();
+
+    Product products_list[100];
+    Product receipt_list[100];
+    int receipt_count = 0;
+
+    for (int i = 0; i < n; i++)
+    {
+        printf("Ââåäèòå òîâàð %d:\n", i + 1);
+        fgets(buffer, sizeof(buffer), stdin);
+
+        int product_quantity;
+        char product_name[100];
+
+        if (sscanf_s(buffer, "%d %99[^\n]", &product_quantity, product_name, (unsigned)_countof(product_name)) == 2)
+        {
+
+
+            for (int v = 0; product_name[v]; v++)
+            {
+                product_name[v] = tolower(product_name[v]);
+            }
+
+            // Ïðîâåðÿåì, åñòü ëè òîâàð óæå â ÷åêå
+            int found = 0;
+            for (int j = 0; j < receipt_count; j++)
+            {
+                if (strcmp(receipt_list[j].name, product_name) == 0)
+                {
+                    receipt_list[j].quantity += product_quantity;
+                    receipt_list[j] = find_product(&receipt_list[j]);
+                    found = 1;
+                    break;
+                }
+            }
+
+            if (!found)
+            {
+                products_list[receipt_count].name = (char*)malloc(strlen(product_name) + 1);
+                strcpy_s(products_list[receipt_count].name, strlen(product_name) + 1, product_name);
+                products_list[receipt_count].quantity = product_quantity;
+
+                receipt_list[receipt_count] = find_product(&products_list[receipt_count]);
+                receipt_count++;
+
+            }
+        }
+        else
+        {
+                printf("Îøèáêà ââîäà. Ïîïðîáóéòå ñíîâà.\n");
+                i--;
+        }
+
+    }
+
+    total = 0.0;
+    for (int i = 0; i < receipt_count; i++) 
+    {
+        total += receipt_list[i].price;
+    }
+
+
+    print_invoice(products_list, receipt_list, receipt_count, total);
+
+
+    for (int i = 0; i < receipt_count; i++) 
+    {
+        free(products_list[i].name);
+    }
+
+    return 0;
+}