Eroare de compilare: user.c:1:20: error: fstream.h: No such file or directory user.c:4: warning: return type of 'main' is not 'int' user.c: In function 'main': user.c:7: error: 'ifstream' undeclared (first use in this function) user.c:7: error: (Each undeclared identifier is reported only once user.c:7: error: for each function it appears in.) user.c:7: error: expected ';' before 'in' user.c:9: error: 'in' undeclared (first use in this function) user.c:10: warning: implicit declaration of function 'strlen' user.c:10: warning: incompatible implicit declaration of built-in function 'strlen' user.c:30: error: 'ofstream' undeclared (first use in this function) user.c:30: error: expected ';' before 'ki' user.c:34: warning: statement with no effect user.c:35: error: 'ki' undeclared (first use in this function) user.c:40: warning: statement with no effect