Reverse Integer
Given a 32-bit signed integer, reverse digits of an integer.
Time Complexity: O(log(x))
Space Complexity: O(1)
$ go test -v -cover ./...
=== RUN TestCase1
Expected: 654321, Output: 654321
--- PASS: TestCase1 (0.00s)
=== RUN TestCase2
Expected: -654321, Output: -654321
--- PASS: TestCase2 (0.00s)
=== RUN TestCase3
Expected: 0, Output: 0
--- PASS: TestCase3 (0.00s)
=== RUN TestCase4
Expected: 0, Output: 0
--- PASS: TestCase4 (0.00s)
PASS
coverage: 87.5% of statements
ok github.com/mxssl/reverseInteger 0.148s coverage: 87.5% of statements