문자열 뒤집기(포인터 사용)

#include <iostream>
using namespace std;

int main()
{
    char a[] = "leeseungwoo";
    char* first = (char*)a;
    char* last = (char *)a + strlen(a) -1;

    while (first < last)
    {
        char temp = *first;
        *first = *last;
        *last = temp;
        
        first++;
        last--;
    }

    cout << a << endl;

}