descompunere.cpp:1:2: invalid preprocessing directive #? descompunere.cpp:4: syntax error before `*' token descompunere.cpp:5: syntax error before `*' token descompunere.cpp: In function `int main()': descompunere.cpp:21: `f' undeclared (first use this function) descompunere.cpp:21: (Each undeclared identifier is reported only once for each function it appears in.) descompunere.cpp:21: `fscanf' undeclared (first use this function) descompunere.cpp:27: `g' undeclared (first use this function) descompunere.cpp:27: `fprintf' undeclared (first use this function) descompunere.cpp:29: `fclose' undeclared (first use this function)