Reverse Number Quiz

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Questions and Answers

What is the purpose of the function mentioned in the text?

The function is used to find the reverse of a number.

Can you provide an example of how to use the function to find the reverse of a number?

Sure! If we have the number 123, the reverse would be 321.

What should be the output if the input number is 0?

If the input number is 0, the output will also be 0.

What is the syntax of the function to find the reverse of a number in C?

The syntax of the function to find the reverse of a number in C is: int reverseNumber(int num) { int rev = 0; while(num != 0) { rev = rev * 10 + num % 10; num = num / 10; } return rev; } Signup and view all the answers

What does the function to find the reverse of a number in C do?

The function to find the reverse of a number in C takes an integer as input and returns the reverse of that number. It uses a while loop to iterate through each digit of the number and constructs the reverse number by continuously multiplying the current reverse number by 10 and adding the last digit of the original number. Signup and view all the answers

Can you explain how the function to find the reverse of a number in C works?

The function to find the reverse of a number in C works by first initializing a variable 'rev' to 0. It then enters a while loop which continues until the input number becomes 0. In each iteration, it multiplies the current reverse number 'rev' by 10 and adds the last digit of the input number to 'rev'. It then updates the input number by dividing it by 10 and continues the process until the input number becomes 0. Finally, it returns the reverse number 'rev' as the output. Signup and view all the answers

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Study Notes

Function to Find the Reverse of a Number

Purpose: The function is designed to find the reverse of a given number.

Using the Function

Example: To find the reverse of a number, call the function with the number as an argument, and it will return the reversed number.

Input and Output

If the input number is 0, the output should be 0.

Syntax in C

The syntax to find the reverse of a number in C is: int reverse(int num).

Functionality

The function takes an integer as input and returns the reversed integer.

Working of the Function

The function works by repeatedly taking the last digit of the input number (using the modulus operator %) and appending it to the reverse number (using arithmetic operations).