Compilare: main.cpp: In member function 'int DSF::Find(int)': main.cpp:23:9: warning: unused variable 'y' [-Wunused-variable] int y, root = node; ^ main.cpp: In function 'void Kruskal(bool)': main.cpp:51:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==g.size()-2 && first_apm == false){ ~^~~~~~~~~~~~ main.cpp:58:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g.size(); i++){ ~^~~~~~~~~