Eroare de compilare: user.c:2:21: error: fstream.h: No such file or directory user.c: In function 'read': user.c:40: error: 'ifstream' undeclared (first use in this function) user.c:40: error: (Each undeclared identifier is reported only once user.c:40: error: for each function it appears in.) user.c:40: error: expected ';' before 'fin' user.c:41: error: 'fin' undeclared (first use in this function) user.c:39: warning: unused variable 'j' user.c:39: warning: unused variable 'd' user.c:39: warning: unused variable 'nr' user.c:39: warning: unused variable 'i' user.c: In function 'write': user.c:50: error: 'ofstream' undeclared (first use in this function) user.c:50: error: expected ';' before 'fout' user.c:51: error: 'fout' undeclared (first use in this function) user.c: In function 'det_timp': user.c:78: warning: assignment makes integer from pointer without a cast