Compilare: user.cpp: In function ‘int main()’: user.cpp:18:29: warning: unused variable ‘nre’ [-Wunused-variable] int n,max,i,j,co,ok,ras,nre,zec; ^ user.cpp:18:33: warning: unused variable ‘zec’ [-Wunused-variable] int n,max,i,j,co,ok,ras,nre,zec; ^ user.cpp:20:10: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] char c; ^ user.cpp:86:9: warning: ‘nr’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(v[i]==nr) ^