Compilare: main.cpp: In function 'int main()': main.cpp:62:20: warning: unused variable 'dif' [-Wunused-variable] 62 | int i,type,x,y,dif,sum,mask,j,ans,nr; | ^~~ main.cpp:62:24: warning: unused variable 'sum' [-Wunused-variable] 62 | int i,type,x,y,dif,sum,mask,j,ans,nr; | ^~~ main.cpp:62:28: warning: unused variable 'mask' [-Wunused-variable] 62 | int i,type,x,y,dif,sum,mask,j,ans,nr; | ^~~~ main.cpp:62:33: warning: unused variable 'j' [-Wunused-variable] 62 | int i,type,x,y,dif,sum,mask,j,ans,nr; | ^