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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int main() {
  5.     int choice;
  6.     float kg, price = 0, total = 0;
  7.     char product[20];
  8.  
  9.     // แสดงรายการสินค้า
  10.     printf("===== Product List =====\n");
  11.     printf("1. Orange     - 45 Baht/kg\n");
  12.     printf("2. Papaya     - 50 Baht/kg\n");
  13.     printf("3. Watermelon - 27 Baht/kg\n");
  14.     printf("4. Apple      - 60 Baht/kg\n");
  15.     printf("5. Banana     - 70 Baht/kg\n");
  16.  
  17.     // รับค่าจากผู้ใช้
  18.     printf("\nPlease select a product (1-5): ");
  19.     scanf("%d", &choice);
  20.  
  21.     if (choice == 1) {
  22.         strcpy(product, "Orange");
  23.         price = 45;
  24.     } else if (choice == 2) {
  25.         strcpy(product, "Papaya");
  26.         price = 50;
  27.     } else if (choice == 3) {
  28.         strcpy(product, "Watermelon");
  29.         price = 27;
  30.     } else if (choice == 4) {
  31.         strcpy(product, "Apple");
  32.         price = 60;
  33.     } else if (choice == 5) {
  34.         strcpy(product, "Banana");
  35.         price = 70;
  36.     } else {
  37.         printf("Invalid selection!\n");
  38.         return 0; // จบโปรแกรมถ้าเลือกผิด
  39.     }
  40.  
  41.     // รับค่าน้ำหนัก
  42.     printf("Enter weight (kg): ");
  43.     scanf("%f", &kg);
  44.  
  45.     // คำนวณราคารวม
  46.     total = price * kg;
  47.  
  48.     // แสดงผลลัพธ์
  49.     printf("\n===== Receipt =====\n");
  50.     printf("Product  : %s\n", product);
  51.     printf("Weight   : %.2f kg\n", kg);
  52.     printf("Price/kg : %.2f Baht\n", price);
  53.     printf("Total    : %.2f Baht\n", total);
  54.  
  55.     return 0;
  56. }
Success #stdin #stdout 0s 5280KB
comments (?)
stdin 
Standard input is empty
stdout 
===== Product List =====
1. Orange     - 45 Baht/kg
2. Papaya     - 50 Baht/kg
3. Watermelon - 27 Baht/kg
4. Apple      - 60 Baht/kg
5. Banana     - 70 Baht/kg

Please select a product (1-5): Invalid selection!
https://ideone.com/2JlaUv
language:
C (gcc 8.3)
created:
11 hours ago
visibility:
public

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