Compilare: main.cpp: In function 'int main()': main.cpp:10:11: warning: unused variable 'min' [-Wunused-variable] 10 | int n,min,max,fr=0,i,j,cl1,cl2,cr1,cr2; | ^~~ main.cpp:10:15: warning: unused variable 'max' [-Wunused-variable] 10 | int n,min,max,fr=0,i,j,cl1,cl2,cr1,cr2; | ^~~ main.cpp:10:28: warning: variable 'cl1' set but not used [-Wunused-but-set-variable] 10 | int n,min,max,fr=0,i,j,cl1,cl2,cr1,cr2; | ^~~