嘗試用函式遞迴判斷括號使用的正確性

``

#include <iostream>

using namespace std;

int check(char str[], char c, int *n);

int main()
{
    char str[60];
    while(cin.getline(str, 60))
    {
        int i = 0;
        int flag = check(str, '\0', &i);
        if(flag == 1)
            cout << "yes"
 
 << endl;
        else
            cout << "no" << endl;
    }
    return 0;
}
int check(char str[], char c, int *n)
{
    while(str[*n] != '\0')
    {
        if(c == '(') //判斷是否與 ( 相對應
        {
            if(str[*n] == c+1) 
                return 1;
        }
        else if(str[*
 
n] == c+2) //判斷是否與 [ 或 { 相對應
            return 1;
        if(str[*n] == ')' || str[*n] == ']' || str[*n] == '}')
        {
            return 0;
        }
        else if(str[*n] == '(' || str[*n] == '[' || str[*n] == '{')
        {
            (*n) ++;
            int flag = check(str, str[(*n)-1], n)
 
;
            if(flag == 0)
                return 0;
        }
        (*n)++;
    }
    if(c == '\0')
        return 1;
    else
        return 0;
}