Compilare: user.cpp: In function ‘int main()’: user.cpp:30:38: warning: ‘endi’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<begsum<<' '<<beg<<' '<<endi; ^ user.cpp:30:24: warning: ‘beg’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<begsum<<' '<<beg<<' '<<endi; ^