Compiling and Running your program
In all cases, your code should be located in a single file. Do not put classes or functions in separate files, you can only submit a single file for judging.
Java
Compile:
javac filename
Run:
java classname < inputfile
(classname is the name of the class that your main method resides within)
C
Compile:
gcc filename
Run:
./a.out < inputfile
a.out
is generated by gcc when you use the default settings. Use
e.g. gcc -o foo foo.c
to change this.
C++:
Compile:
g++ filename
Run:
./a.out < inputfile