Compilare: user.cpp: In function ‘void check(var)’: user.cpp:50:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(var i=0; i<G[node].size(); i++) { ^ user.cpp:53:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(var j=i+1; j<G[node].size(); j++) { ^ user.cpp:58:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(var k=j+1; k<G[node].size(); k++) { ^ user.cpp:49:38: warning: typedef ‘itt’ locally defined but not used [-Wunused-local-typedefs] typedef map<var, bool>::iterator itt; ^