Compilare: main.cpp:50:12: warning: multi-character character constant [-Wmultichar] g<<costot<<'/n'; ^~~~ main.cpp:51:9: warning: multi-character character constant [-Wmultichar] g<<n-1<<'/n'; ^~~~ main.cpp: In function 'void Prim(int)': main.cpp:34:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<L[j].size();i++) ~^~~~~~~~~~~~ main.cpp:25:6: warning: unused variable 'k' [-Wunused-variable] {int k,j,c,i,val,nod; ^ main.cpp:25:10: warning: unused variable 'c' [-Wunused-variable] {int k,j,c,i,val,nod; ^