Eroare de compilare: user.cpp: In function `void citire()': user.cpp:6: error: `ifstream' undeclared (first use this function) user.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.) user.cpp:6: error: parse error before `(' token user.cpp:10: error: `f' undeclared (first use this function) user.cpp: In function `int nred()': user.cpp:22: error: name lookup of `i' changed for new ISO `for' scoping user.cpp:19: error: using obsolete binding at `i' user.cpp:18: warning: unused variable `int y' user.cpp: In function `int main()': user.cpp:38: error: `clrscr' undeclared (first use this function) user.cpp:53: error: `ofstream' undeclared (first use this function) user.cpp:53: error: parse error before `(' token user.cpp:54: error: `g' undeclared (first use this function) user.cpp:54: error: `endl' undeclared (first use this function) user.cpp:39: warning: unused variable `int j' user.cpp:39: warning: unused variable `int l' user.cpp:39: warning: unused variable `int p' user.cpp:58:2: warning: no newline at end of file