Compilare: main.cpp: In function 'int main()': main.cpp:13:37: warning: unused variable 'l' [-Wunused-variable] int i, n, suma_optima, suma_int,l,x,y,z; ^ main.cpp:26:35: warning: 'z' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<suma_optima<<' '<<y<<' '<<z; ^ main.cpp:26:29: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<suma_optima<<' '<<y<<' '<<z; ^~~