20 Dec 7. Reverse Integer
Given a signed 32-bit integer x, return x with its digits reversed. If reversing x causes the value to go outside the signed 32-bit integer range [-231, 231 - 1], then return 0.
Assume the environment does not allow you to store 64-bit integers (signed or unsigned).
Example 1:
Input: x = 123 Output: 321
Example 2:
Input: x = -123 Output: -321
Example 3:
Input: x = 120 Output: 21
Constraints:
-231 <= x <= 231 - 1
class Solution:
def reverse(self, x: int) -> int:
y = 0
is_nagative= False
if x<0:
is_nagative = True
x = -x
while x > 0:
y = x % 10 + y*10
x = x//10
print(x)
print(y)
print(“—————-“)
if is_nagative == True:
y = -y
if y < -(2**31) or (y > (2**31)-1):
y = 0
return y
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