Compilare: main.cpp: In function 'void unite(int, int)': main.cpp:17:9: warning: unused variable 'setX' [-Wunused-variable] 17 | int setX, setY, i; | ^~~~ main.cpp:17:15: warning: unused variable 'setY' [-Wunused-variable] 17 | int setX, setY, i; | ^~~~ main.cpp: In function 'int main()': main.cpp:54:9: warning: unused variable 'idx' [-Wunused-variable] 54 | int idx = 0, x, y, order; | ^~~ main.cpp:54:18: warning: variable 'x' set but not used [-Wunused-but-set-variable] 54 | int idx = 0, x, y, order; | ^ main.cpp:54:21: warning: variable 'y' set but not used [-Wunused-but-set-variable] 54 | int idx = 0, x, y, order; | ^