#include <stdio.h>
 
int main() {
    const float rate_per_hour = 50 ;
    const int total_users = 10;
  float hours,discount,net,cost;
    int i;
    for (i=1; i<=total_users; i++ ){
        printf ("กรอกจำนวนชั่งโมงการใช้งานของคนที่%d:", i );
        scanf ("%f", &hours) ;
        //คำนวณเงินก่อนลด
        cost = hours*rate_per_hour;
        // คำนวณส่วนลด
        if(hours >= 5 ){
            discount = cost * 0.05;   //ลด5%
        } else{
            discount = cost * 0.03; //ลด3%
        }
        // ค่าบริการสุทธิ
        net = cost - discount ;
 
        // แสดงผล
 
        printf("ผู้ใช้คนที่%d:\n",i);
        printf("ชั่วโมงที่ใช้งาน = %.2f บาท\n",hours);
         printf(" ค่าบริการก่อนลด =%.2f บาท\n  ", cost);
           printf(" ส่วนลด =%.2f บาท\n  ", discount);
            printf(" ค่าบริการสุทธิ =%.2f บาท\n\n  ",   net);
 
    }
 
    return 0;
}

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