Here is the simple C program to Calculate Credit Card Limit.

Question:

(3.17-C How To Program)

(Credit Limit Calculator) Develop a C program that will determine if a department store

customer has exceeded the credit limit on a charge account. For each customer, the following facts are available:

a) Account number

b) Balance at the beginning of the month

c) Total of all items charged by this customer this month

d) Total of all credits applied to this customer's account this month

e) Allowed credit limit

The program should input each fact, calculate the new balance (= beginning balance +

charges – credits), and determine whether the new balance exceeds the customer's credit limit. For

those customers whose credit limit is exceeded, the program should display the customer's account

number, credit limit, new balance and the message “Credit limit exceeded.”

Source Code:

#include <stdio.h>

#include <stdlib.h>

int main()

{

    int acc;

    float bal,cha,cred,limit;

    while (acc!=-1){

        printf("Enter account number (-1 to end):");

        scanf("%d",&acc);

        if (acc==-1)

            break;

        printf("Enter beginning balance:");

        scanf("%f",&bal);

        printf("Enter total charges:");

        scanf("%f",&cha);

        printf("Enter total credits:");

        scanf("%f",&cred);

        printf("Enter credit limit:");

        scanf("%f",&limit);

        bal+=cha-cred;

        if (bal>limit){

        printf("account:\t%d\nCredit Limit:\t%.2f\nBalance:\t%.2f",acc,limit,bal);

            printf("\nCredit Limit Exceeded.\n\n");}

    }

    return 0;

}

Note:

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