int
char
unsigned
float
void
main
union
long
double
printf
sprintf
if
else
struct
fork
switch
for
define
return
include
case
&&
||
break
bool
static
public
enum
typedef
private
exit
<stdio.h>
scanf
NULL
malloc
calloc
free
realloc
<string.h>
fgets
strcmp
strcpy
fputs
stdout
EOF
getc
while
fclose
fopen
do
fscanf
extern
