Reverse digits of an integer.
Example1:
x = 123,
return 321
Example2:
x = -123,
return -321
Return 0 if the result overflows and does not fit in a 32 bit signed integer
NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a doubt? Checkout Sample Codes for more details.
