Compilare: user.cpp: In function ‘int main()’: user.cpp:140:23: warning: ‘l2’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout <<l1<< ' ' <<l2<< ' ' <<k; ^ user.cpp:140:12: warning: ‘l1’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout <<l1<< ' ' <<l2<< ' ' <<k; ^ user.cpp:31:9: warning: ‘k’ may be used uninitialized in this function [-Wmaybe-uninitialized] if((k-1)%2==0) ^