﻿!DOCTYPE html> Python: Reverse the digits of an integer - w3resource

Python Challenges: Reverse the digits of an integer

Python Challenges - 1: Exercise-18 with Solution

Write a Python program to reverse the digits of an integer.

Explanation:

Sample Solution:-

Python Code:

``````def reverse_integer(x):
sign = -1 if x < 0 else 1
x *= sign

# Remove leading zero in the reversed integer
while x:
if x % 10 == 0:
x /= 10
else:
break

# string manipulation
x = str(x)
lst = list(x)  # list('234') returns ['2', '3', '4']
lst.reverse()
x = "".join(lst)
x = int(x)
return sign*x

print(reverse_integer(234))
print(reverse_integer(-234))
```
```

Sample Output:

```432
-432
```

Flowchart:

Python Code Editor:

```def reverse_integer(x):
sign = -1 if x < 0 else 1
x *= sign

# Remove leading zero in the reversed integer
while x:
if x % 10 == 0:
x /= 10
else:
break

# string manipulation
x = str(x)
lst = list(x)  # list('234') returns ['2', '3', '4']
lst.reverse()
x = "".join(lst)
x = int(x)
return sign*x

print(reverse_integer(234))
print(reverse_integer(-234))```

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