caini.cpp: In function `void configuratii(int)': caini.cpp:34: warning: comparison between signed and unsigned integer expressions caini.cpp:41: warning: comparison between signed and unsigned integer expressions caini.cpp: In function `int BFS(int)': caini.cpp:56: warning: unused variable `int j' caini.cpp:56: warning: unused variable `int S' caini.cpp:56: warning: unused variable `int S2' caini.cpp:56: warning: unused variable `int k1' caini.cpp:86: warning: control reaches end of non-void function