1. 使用 Golang
2. foder name and package is 題號
3. In GOPATH, type "go test LeetCode/LeetCode_00728"
4. Benchmark, type "go test LeetCode/LeetCode_00278 -bench=."
src 
    - LeetCode
               - LeetCode_00728
                                - LeetCode_00728.go
                                - LeetCode_00728_test.go    
