arthur.cpp: In function 'int get_way()': arthur.cpp:137: warning: unused variable 'j' arthur.cpp: In function 'int main()': arthur.cpp:214: warning: comparison between signed and unsigned integer expressions arthur.cpp:218: warning: comparison between signed and unsigned integer expressions arthur.cpp:197: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result arthur.cpp:198: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result arthur.cpp:200: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result arthur.cpp:201: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result arthur.cpp:202: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result arthur.cpp:204: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result