Eroare de compilare: user.c:1:21: error: fstream.h: No such file or directory user.c:31: warning: return type of 'main' is not 'int' user.c: In function 'main': user.c:32: error: 'ifstream' undeclared (first use in this function) user.c:32: error: (Each undeclared identifier is reported only once user.c:32: error: for each function it appears in.) user.c:32: error: expected ';' before 'f' user.c:34: error: 'f' undeclared (first use in this function) user.c:59: error: 'cout' undeclared (first use in this function) user.c:77: error: 'endl' undeclared (first use in this function)