joc14.cpp:2:20: fstream.: No such file or directory joc14.cpp: In function `int main()': joc14.cpp:6: `ifstream' undeclared (first use this function) joc14.cpp:6: (Each undeclared identifier is reported only once for each function it appears in.) joc14.cpp:6: parse error before `(' token joc14.cpp:7: `ofstream' undeclared (first use this function) joc14.cpp:11: `f' undeclared (first use this function) joc14.cpp:54: `g' undeclared (first use this function)