bool parse(FILE *fp, char bracket)
{
static int ok = true;
int c;
while(ok && (c = fgetc(fp)) != EOF) {
if(bad_bracket(c, bracket)) {
ok = false;
}
if(proper_closing_bracket(c, bracket)) {
/* printf("%d: '%c'\n",cnt, (char)c); */
cnt--;
return true;
}
if(is_open_bracket((char)c)) {
cnt++;
/* printf("%d: '%c'\n",cnt, (char)c); */
if(!parse(fp, (char)c)) {
ok = false;
}
}
}
return ok;
}
int main() {
std::string data;
std::getline(std::cin, data);
data = trim(data);
std::stack<char> brackets_stack;
int count = 0;
for (size_t idx = 0; idx < data.size(); ++idx) {
char c = data[idx];
if (is_close_bracket(c) || is_open_bracket(c)) {
if (is_open_bracket(c)) brackets_stack.push(c);
if (is_close_bracket(c)) {
if (brackets_stack.empty() ||
static_cast<int>(c) - static_cast<int>(brackets_stack.top()) >= 3 ||
static_cast<int>(c) - static_cast<int>(brackets_stack.top()) <= 0) {
std::cout << count;
return 0;
}
if (!brackets_stack.empty() &&
static_cast<int>(c) - static_cast<int>(brackets_stack.top()) < 3 &&
static_cast<int>(c) - static_cast<int>(brackets_stack.top()) > 0) {
brackets_stack.pop();
}
}
count++;
}
}
if (brackets_stack.empty())
std::cout << "CORRECT";
else
std::cout << count;
return 0;
}
static char *is_hebrew_command(FriBidiChar *text,int *length)
{
char const *tag_txt,*env_txt;
static char buffer[MAX_COMMAND_LEN*2+3];
/* The command can consist at most of name of tag,
* environment and breakets */
FriBidiChar *end_ptr;
if(*text!='\\') {
return NULL;
}
end_ptr=text+1;
if((tag_txt = is_tag_begin_or_end(&end_ptr))!=NULL
&& is_open_bracket(&end_ptr)
&& (env_txt=is_heb_environment(&end_ptr))!=NULL
&& is_close_bracket(&end_ptr))
{
*length=end_ptr-text;
strcpy(buffer,"\\");
strcat(buffer,tag_txt);
strcat(buffer,"{");
strcat(buffer,env_txt);
strcat(buffer,"}");
return buffer;
}
end_ptr=text+1;
if((tag_txt=is_heb_tag(&end_ptr))!=NULL){
*length=end_ptr-text;
strcpy(buffer,"\\");
strcat(buffer,tag_txt);
return buffer;
}
return NULL;
}