C언어 ㅅㅂ

C++은 객체지향적 언어이다.

C도 몯헤먹겓는데 플러스 두개 더 붙은건 더 어렵겓죠 야발

꼭 생겨먹은게 내 핟점갇내요 ㅠㅅ ㅠ

앋 ㅠㅠ 저는 경정시에서 암기만하면돼서 몰라욥><

졷보는 구헫는대 널마나 똑같이 나올지 모르겓워요

할뚜이따할뚜이따!!

#define _CRT_SECURE_NO_WARNINGS

#include
#include
#include
#include

#define MAX_STR 1024
#define MAX_WORD 100


enum { FALSE, TRUE };
enum { ALPHABET, NUMBER, OPERATOR, OTHER };

typedef struct struct_word {
int type;
char str[MAX_STR];
} Sword;


int isAlphabets(char *str)
{
if (!str || strcmp(str, "") == 0) return FALSE;

for (; *str; str++) {
if (!(isalpha(*str))) return FALSE;
}

return TRUE;
}

int isNumbers(char *str)
{
int num_digits = 0, num_dots = 0;

if (!str || strcmp(str, "") == 0) return FALSE;

// first charactor could be + or -
if (*str == '+' || *str == '-') str++;

for (; *str; str++) {
if (isdigit(*str)) {
num_digits++;
}
else if (*str == '.') {
num_dots++;
}
else return FALSE;
}

return (num_digits > 0 && num_dots < 2);
}


int isOperators(char *str)
{
char operators[] = "+-*/^";

if (!str || strcmp(str, "") == 0) return FALSE;

for (; *str; str++) {
if (!strchr(operators, *str)) return FALSE;
}

return TRUE;
}


int getType(char *str)
{
if (isAlphabets(str)) return ALPHABET;
else if (isNumbers(str)) return NUMBER;
else if (isOperators(str)) return OPERATOR;

return OTHER;
}

char *getTypeString(int type)
{
switch (type) {
case ALPHABET:
return "Alphabets";
break;
case NUMBER:
return "Numbers";
break;
case OPERATOR:
return "Operators";
break;
default:
return "Others";
break;
}
}

void addWord(char *aword, Sword *words, int *nwords)
{
if (!aword || strcmp(aword, "") == 0) return;
if (!words || !nwords) return;

words[*nwords].type = getType(aword);
strncpy(words[(*nwords)++].str, aword, MAX_STR);
}

void printWords(Sword *words, int nwords)
{
int i;

for (i = 0; i<nwords; i++) {
printf("[%d] %s (%s)\n", i + 1, words[i].str, getTypeString(words[i].type));
}
}

void toLowerStr(char *low_str, char *org_str)
{
for (; *org_str; org_str++, low_str++) {
*low_str = tolower(*org_str);
}
}

void parse_strtok(Sword *words, int max_nwords, int *nwords, char *delimiters)
{
char buf[MAX_STR];
char *pword = 0;
int num_words = 0;

num_words = 0;
while (fgets(buf, MAX_STR, stdin)) {
if (!buf) continue;
pword = strtok(buf, delimiters);
while (pword) {
addWord(pword, words, &num_words);
pword = strtok(NULL, delimiters);
}
}

*nwords = num_words;
}

// strtok_s in Windows, strtok_r in Linux
void parse_strtok_r(Sword *words, int max_nwords, int *nwords, char *delimiters)
{
char buf[MAX_STR];
char *saveptr = 0;
char *pword = 0;
int num_words = 0;

num_words = 0;
while (fgets(buf, MAX_STR, stdin)) {
if (!buf) continue;
pword = strtok_s(buf, delimiters, &saveptr);
while (pword) {
addWord(pword, words, &num_words);
pword = strtok_s(NULL, delimiters, &saveptr);
}
}

*nwords = num_words;
}



int main(void)
{
Sword words[MAX_WORD];
char delimiters[] = " \t\n";
int num_words = 0;

// call parse_strtok or parse_strtok_r
parse_strtok(words, MAX_WORD, &num_words, delimiters);
printWords(words, num_words);

return 0;
}

실습 예제 모범답안이 이모야이이꼬라지에요 ㅅㅂ