Compilare: main.cpp: In function 'void unite(int, int, int)': main.cpp:35:9: warning: unused variable 'cx' [-Wunused-variable] int cx=x,cy=y; ^~ main.cpp:35:14: warning: unused variable 'cy' [-Wunused-variable] int cx=x,cy=y; ^~ main.cpp: In function 'int main()': main.cpp:81:13: warning: unused variable 'nx' [-Wunused-variable] int nx=x,ny=y; ^~ main.cpp:81:18: warning: unused variable 'ny' [-Wunused-variable] int nx=x,ny=y; ^~ main.cpp:95:19: warning: unused variable 'cx' [-Wunused-variable] int modif,cx,cy; ^~ main.cpp:95:22: warning: unused variable 'cy' [-Wunused-variable] int modif,cx,cy; ^~