precompile bits/stdc++.h

Dockerfile

@@ -1,6 +1,21 @@
 FROM public.ecr.aws/lambda/python:3.12
 
 RUN dnf install -y gcc-c++
+
+# For -fsanitize=undefined and -fsanitize=address
+RUN dnf install -y libasan libubsan
+
+# Precompile bits/stdc++.h: https://gcc.gnu.org/onlinedocs/gcc/Precompiled-Headers.html
+# I believe flags like -Wall are ignored, but flags like -std, -O2, and -fsanitize=address must
+# match the flags used to precompile the header.
+RUN mkdir -p /precompiled-headers/bits/stdc++.h.gch
+RUN g++ -std=c++11 -O2 -o /precompiled-headers/bits/stdc++.h.gch/01 /usr/include/c++/11/x86_64-amazon-linux/bits/stdc++.h
+RUN g++ -std=c++17 -O2 -o /precompiled-headers/bits/stdc++.h.gch/02 /usr/include/c++/11/x86_64-amazon-linux/bits/stdc++.h
+RUN g++ -std=c++23 -O2 -o /precompiled-headers/bits/stdc++.h.gch/03 /usr/include/c++/11/x86_64-amazon-linux/bits/stdc++.h
+RUN g++ -std=c++11 -O2 -fsanitize=address -o /precompiled-headers/bits/stdc++.h.gch/04 /usr/include/c++/11/x86_64-amazon-linux/bits/stdc++.h
+RUN g++ -std=c++17 -O2 -fsanitize=address -o /precompiled-headers/bits/stdc++.h.gch/05 /usr/include/c++/11/x86_64-amazon-linux/bits/stdc++.h
+RUN g++ -std=c++23 -O2 -fsanitize=address -o /precompiled-headers/bits/stdc++.h.gch/06 /usr/include/c++/11/x86_64-amazon-linux/bits/stdc++.h
+
 RUN dnf install -y java-21-amazon-corretto-devel
 RUN dnf install -y time
 

src/compile.rs

@@ -46,7 +46,7 @@ pub fn compile(compile_request: CompileRequest) -> Result<CompileResponse> {
         .map_err(|_| anyhow!("failed to convert output_file_path into string"))?;
 
     let command = format!(
-        "g++ -o {} {} program.cpp",
+        "g++ -I/precompiled-headers -o {} {} program.cpp",
         output_file_path, compile_request.compiler_options
     );
     let compile_output = run_command(