Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:6:5: error: ‘iftream’ was not declared in this scope iftream fin ("arbint.in"); ^ user.cpp:6:13: error: expected ‘;’ before ‘fin’ iftream fin ("arbint.in"); ^ user.cpp:7:5: error: ‘ofstrem’ was not declared in this scope ofstrem fout ("arbint.out"); ^ user.cpp:7:13: error: expected ‘;’ before ‘fout’ ofstrem fout ("arbint.out"); ^ user.cpp:9:5: error: ‘fin’ was not declared in this scope fin>>n>>m; ^ user.cpp:20:13: error: expected ‘(’ before ‘int’ for int j=b-1;j<c;++j) ^ user.cpp:27:9: error: ‘fout’ was not declared in this scope fout<<u; ^ user.cpp:32:19: warning: statement has no effect [-Wunused-value] v[b-1]-v[c-1]; ^