Code Execution Environmentupdated 3 days ago

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CodeMarshal algorithm contest hosting platform uses a sandboxed code execution environment for each individual submissions. Details of the compilers and runtimes used in the environment is provided below:

Compilers & Language Runtimes

CodeMarshal sandbox uses the following software configuration for compiling and executing source code submissions:

• C
  • gcc 9.2
• C++
  • g++ 9.2
• Java
  • OpenJDK 8
• Python2
  • CPython 2.7
• Python3
  • CPython 3.8

Compilation of Submissions

Source files submitted to the system will be compiled using the following command line arguments for the respective language:

• C
  • gcc -O2 -static program.c -lm
• C++
  • g++ -O2 -static -std=c++11 program.cpp
• Java
  • javac -encoding UTF-8 -J-Xmx2048m Program.java
• Python2
  • python2 program.py
• Python3
  • python3 program.py

Execution of Submissions

For each language, if the above compilation step is successful then the submission will be executed as follows:

• C/C++

  • the executable file generated by the compiler will be executed to generate the output of the submission.

• Python

  • the main source file will be executed by the CPython interpreter to generate the output of the submission.

• Java

  • the compiled main class will be executed using the following jvm parameters:
  • java -XX:+UseSerialGC -Xss64m -Xms64m -Xmx2048m Program

The submission runtime system sandbox runs on Arch Linux 64bit server.