Program: 88

The policy followed by a company to process customer orders is given by the following rules:
(i) If order quantity is less than or equal to that in stock and his credit is ok, supply his requirement.
(ii) If his credit is not ok do not supply. Send him intimation.
(iii) if his credit is ok but the item in stock is less than his order, supply what is in stock. Intimation him that balance will be shipped later.
Write a C program to implement the company policy.

#include<stdio.h>
int main()
{
    //Suppose we have only 100 product (Quantity of product) in stock
    int stock=100, order;
    char credit;

    printf("Enter the customer order: ");
    scanf("%d", &order);
    //check for customer credit
    printf("Is his credit is ok? (Press y/n)\n");
    credit = getch();   //it receive only one character

    //check for rule (i)
    if(order<=stock && credit == 'y' || credit == 'Y') //user may enter capital letter also
        printf("Sir,\n\t We supplied your requirement\n\t\t Quantity: %d",order);

    //check for rule (ii)
    else if(order>stock && credit == 'y' || credit == 'Y')
        printf("Sir,\n\t We supplied %d products and balance will be shipped later.",stock);

    //check for rule (iii)
    else
        printf("Sir,\n\t Please first clear your credit, until we can't supply you any more.");
}

Output:

Enter the customer order: 90
Is his credit is ok? (Press y/n)
Sir,
         We supplied your requirement
                 Quantity: 90

Enter the customer order: 200
Is his credit is ok? (Press y/n)
Sir,
         We supplied 100 products and balance will be shipped later.

Enter the customer order: 50
Is his credit is ok? (Press y/n)
Sir,
         Please first clear your credit, until we can't supply you any more.