Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:5:5: error: expected ‘,’ or ‘;’ before ‘ofstream’ ofstream fout("cmmdc.out") ^~~~~~~~ user.cpp:7:10: error: ‘a’ was not declared in this scope fin>>a>>b; ^ user.cpp:7:13: error: ‘b’ was not declared in this scope fin>>a>>b; ^ user.cpp:8:5: error: ‘r’ was not declared in this scope r=a-b; ^ user.cpp:14:5: error: ‘fout’ was not declared in this scope fout<<b; ^~~~