Compilare: main.cpp: In function 'int main()': main.cpp:8:31: warning: unused variable 'aux' [-Wunused-variable] int n,m,i,j,cer,a,b,r,l,c,aux,ct=0,x,y,lung,h; ^~~ main.cpp:9:11: warning: variable 'c1' set but not used [-Wunused-but-set-variable] float c1,c2; ^~ main.cpp:9:14: warning: variable 'c2' set but not used [-Wunused-but-set-variable] float c1,c2; ^~