To solve the problem of reversing the digits of a given integer, we'll develop a systematic approach. Here's a step-by-step explanation:
1. Understand the Problem:
We are given an integer, and we need to reverse its digits. For example, for the input `7631`, the output should be `1367`.
2. Plan the Approach:
- Convert the integer to a string format to easily access and manipulate individual digits.
- Reverse the string representation of the number.
- Convert the reversed string back to an integer.
3. Steps to Implement:
Let's go through the example `7631` and apply our method:
- Step 1: Convert the integer to a string: `str(7631)` gives `"7631"`.
- Step 2: Reverse the string: `"7631"[::-1]` gives `"1367"`.
- Step 3: Convert the reversed string back to an integer: `int("1367")` gives `1367`.
Now, let's write a function to formalize this approach:
### Function Definition:
```markdown
1. Start with the function signature:
```python
def reverse_digits(value):
# missing function body here
```
2. Convert the integer to a string:
```python
def reverse_digits(value):
str_value = str(value)
```
3. Reverse the string:
```python
def reverse_digits(value):
str_value = str(value)
reversed_str_value = str_value[::-1]
```
4. Convert the reversed string back to an integer:
```python
def reverse_digits(value):
str_value = str(value)
reversed_str_value = str_value[::-1]
reversed_value = int(reversed_str_value)
return reversed_value
```
### Complete Function:
```python
def reverse_digits(value):
# Convert the integer to a string to reverse the digits
str_value = str(value)
# Reverse the string
reversed_str_value = str_value[::-1]
# Convert the reversed string back to an integer
reversed_value = int(reversed_str_value)
return reversed_value
```
### Example Usage:
For demonstration, if we call this function with the integer `7631`:
```python
value = 7631
reversed_value = reverse_digits(value)
print(reversed_value) # This will output: 1367
```
Using this function, you can reverse the digits of any integer you provide as input. The function converts the integer to its string representation, reverses the string, and then converts it back to an integer, returning the desired result.
