Compilare: main.cpp: In function 'int main()': main.cpp:8:12: warning: unused variable 'lat' [-Wunused-variable] int nr,lat,n,l,c,i,a,cer,k,j,ca,p,v[100000],maxnr=0; ^~~ main.cpp:8:18: warning: unused variable 'l' [-Wunused-variable] int nr,lat,n,l,c,i,a,cer,k,j,ca,p,v[100000],maxnr=0; ^ main.cpp:47:17: warning: 'ca' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<ca%10;; ^~