Compilare: main.cpp: In function 'int havel_hakimi(std::vector<nod>, int, int (*)[100])': main.cpp:20:9: warning: unused variable 'r' [-Wunused-variable] nod r; ^ main.cpp: In function 'int main()': main.cpp:54:9: warning: unused variable 'ok' [-Wunused-variable] int ok=1,n,v,p,i,j,a[100][100]; ^~ main.cpp:54:18: warning: unused variable 'p' [-Wunused-variable] int ok=1,n,v,p,i,j,a[100][100]; ^