Eroare de compilare in evaluator: user.c:1:20: error: fstream.h: No such file or directory user.c:36: warning: return type of 'main' is not 'int' user.c: In function 'main': user.c:39: error: 'fstream' undeclared (first use in this function) user.c:39: error: (Each undeclared identifier is reported only once user.c:39: error: for each function it appears in.) user.c:39: error: expected ';' before 'f' user.c:41: error: 'f' undeclared (first use in this function) user.c:41: error: 'ios' undeclared (first use in this function) user.c:41: error: expected ')' before ':' token user.c:79: error: expected ')' before ':' token user.c:80: error: 'endl' undeclared (first use in this function)