Eroare de compilare: user.c:1:18: error: cstdio: No such file or directory user.c:2:19: error: cstring: No such file or directory user.c:5: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘ok’ user.c: In function ‘main’: user.c:21: warning: implicit declaration of function ‘freopen’ user.c:21: error: ‘stdin’ undeclared (first use in this function) user.c:21: error: (Each undeclared identifier is reported only once user.c:21: error: for each function it appears in.) user.c:22: error: ‘stdout’ undeclared (first use in this function) user.c:23: warning: implicit declaration of function ‘scanf’ user.c:23: warning: incompatible implicit declaration of built-in function ‘scanf’ user.c:23: warning: format ‘%s’ expects type ‘char *’, but argument 2 has type ‘char (*)[100001]’ user.c:24: warning: format ‘%s’ expects type ‘char *’, but argument 2 has type ‘char (*)[100001]’ user.c:25: warning: implicit declaration of function ‘strlen’ user.c:25: warning: incompatible implicit declaration of built-in function ‘strlen’ user.c:28: warning: implicit declaration of function ‘printf’ user.c:28: warning: incompatible implicit declaration of built-in function ‘printf’ user.c:30: warning: implicit declaration of function ‘strcmp’ user.c:68: error: ‘ok’ undeclared (first use in this function) user.c:68: error: ‘true’ undeclared (first use in this function) user.c:71: error: ‘false’ undeclared (first use in this function)