B. 数数

C++

GCC 10.2.0

C++ 11

GCC 10.2.0

C++ 17

GCC 10.2.0

C++ (NOI)

GCC 4.8.4 (NOILinux 1.4.1)

C++ 11 (NOI)

GCC 4.8.4 (NOILinux 1.4.1)

C++ 11 (Clang)

Clang 12.0.1

C++ 17 (Clang)

Clang 12.0.1

C

Clang 12.0.1

C (NOI)

GCC 4.8.4 (NOILinux 1.4.1)

C#

Mono 6.12.0.122

Java

OpenJDK 11.0.11

Pascal

Free Pascal 3.0.4

Python 2

PyPy 7.3.4 (Python 2.7.18)

Python 3

PyPy 7.3.4 (Python 3.7.10)

Node.js

16.1.0

Ruby

2.7.0

Haskell

GHC 8.10.4