尽可能模拟机试的开发与测评环境，本仓库中的所有 C++ 代码采用 C++98.
以下是 百练 OJ 的语言要求。
| Language | Compiler(s) | Standard | Remark(s) |
|---|---|---|---|
| C | MS VC++ 2008 Express (“C”) and MinGW GCC 4.4.0 (“GCC”) |
C99 | The macro ONLINE_JUDGE is defined.The C99 implementation of GCC 4.4.0 is not considered feature-complete. In particular, support for variable-length arrays and intrinsic complex and imaginary types is labeled “broken”. |
| C++ | MS VC++ 2008 Express (“C++”) and MinGW GCC 4.4.0 (“G++”) |
C++98 | The macro ONLINE_JUDGE is defined.Currently there is no plan to enable the experimental C++0x features before the new C++ standard is officially published and relatively well-supported. |
| Java | JDK 6 (“Java”) |
The system property ONLINE_JUDGE is s.You should write a class named Main with public or package visibility. This Main class should contain the entry-point main method. |
|
| Pascal | FreePascal 2.2.0 (“Pascal”) |
FreePascal dialect | The macro ONLINE_JUDGE is defined. |
| Fortran | MinGW GCC 4.4.0 (“Fortran”) |
Fortran 95 |
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