Compilare: main.cpp: In function 'void BFS()': main.cpp:23:12: warning: unused variable 'j' [-Wunused-variable] int i, j; ^ main.cpp: In function 'void BFS2()': main.cpp:43:11: warning: unused variable 'j' [-Wunused-variable] int i, j; ^ main.cpp: In function 'int main()': main.cpp:81:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<s.size();j++) ~^~~~~~~~~ main.cpp:124:33: warning: 'f.point::coloana' may be used uninitialized in this function [-Wmaybe-uninitialized] if(viz[f.linie][f.coloana]!=0) ~~~~~~~~~~~~~~~~~~~~~~^ main.cpp:124:33: warning: 'f.point::linie' may be used uninitialized in this function [-Wmaybe-uninitialized]