# C program for currency denomination

Currency denomination is an important process to count the currency. An important ability in many situations is accurate money counting, including retail transactions, financial analysis, etc. Programming-wise, automating this procedure can guarantee accuracy and effectiveness. In this post, we'll look at three C programming techniques for counting all the notes in a particular quantity.

The amount in financial transactions frequently consists of several separate currency notes. Automating the note-counting procedure can improve financial calculations' accuracy, reduce errors, and save time. Let's explore the approaches C programming provides to accomplish this.

The traditional method uses a straightforward and easy way to count notes. We create an array that stores the values of various banknotes, including the 500, 100, 50, and several others. The amount to be counted is subsequently input by the user. The program counts how many times each note can fit into the available space as it iterates over the array. After that, the following computations are made using the remainder.

### Example:

Output:

```Enter the amount: 3456
500 notes is: 6
100 notes is: 4
50 notes is: 1
20 notes is: 0
10 notes is: 0
5 notes is: 1
2 notes is: 0
1 notes is: 1
```

## User-Defined Function Approach:

In this method, we can encapsulate the note-counting functionality into a user-defined function to improve code modularity. In addition to encouraging proper coding practices, it keeps the core code concise.

### Example:

Output:

```Enter the amount: 56789
500 notes is: 113
100 notes is: 2
50 notes is: 1
20 notes is: 1
10 notes is: 1
5 notes is: 1
2 notes is: 2
1 notes is: 0
```

## Pointer Approach:

This method is an important method of C programming. The pointers method can accomplish the note counting in a different method. We can achieve the same thing by supplying array addresses and using pointer arithmetic.

### Example:

Output:

```Enter the amount: 1025
500 notes is: 2
100 notes is: 0
50 notes is: 0
20 notes is: 1
10 notes is: 0
5 notes is: 1
2 notes is: 0
1 notes is: 0
```

## Conclusion:

In conclusion, automating the process of counting money notes within a given amount is a useful skill used in various industries, from retail to banking. The three methods used in this article to accomplish this task include the standard technique, user-defined function method, and pointer method, showcasing the adaptability of C programming.

The conventional approach provides clarity of the underlying logic and simplicity. The user-defined function method improves the code's modularity and organization, making it simpler to manage and maintain. On the other hand, the pointer approach demonstrates the sophisticated powers of pointers in quickly and effectively accessing array elements and modifying data.

The main goal is to precisely count cash notes and simplify financial calculations, regardless of the technique used. These methods reduce errors, save time, and act as a starting point for deeper research into the potential of C programming. The capacity to automate these processes is becoming more and more important as technology develops, and learning these techniques gives programmers useful abilities that they can use across a range of industries.