Program: 84

A library charges a fine for every book returned late. For first 5 days the fine is 50 paise per day, for 6-10 days fine is one rupee per day and above 10 days fine is 5 rupees per day. If you return the book after 30 days your membership will be cancelled. Write a c program to accept the number of days the member is late to return the book and display the fine appropriate message.

#include<stdio.h>
#include<conio.h>
int main()
{
    int days;
    float fine;

    printf("Enter the number of days: ");
    scanf("%d", &days);

    if (days > 0 && days <= 5)
        fine = 0.50 * days;

    if (days >= 6 && days <= 10)
        fine = 1 * days;

    if (days > 10)
        fine = 5 * days;

        if (days > 30)
        {
            printf("Your membership would be canceled.\n");
        }


    printf("You have to pay Rs. %.2f fine.", fine);
}

Output:

 Enter the number of days: 5
 You have to pay Rs. 2.50 fine.
 Enter the number of days: 10
 You have to pay Rs. 10.00 fine.
 Enter the number of days: 13
 You have to pay Rs. 65.00 fine.
 Enter the number of days: 31
 Your membership would be canceled.
 You have to pay Rs. 155.00 fine.