/in/Compile/check.cpp:67:5: error: conflicting types for 'main'
int main(int argc, char* argv[]) {
    ^
/in/sokoban.hpp:178:5: note: previous definition is here
int main() {
    ^
1 error generated.
/in/Compile/Makefile:16: recipe for target 'main' failed
make: *** [main] Error 1