Fast I/O in C/C++

io.cpp

/*
  grab the whole line
    char a[100];
    cin.getline(a,100);
    scanf("%[^\n]",a);
    gets(a);
*/

inline void fastRead_int(int *a)
{
    register char c=0;
    while (c<33) c=getchar_unlocked();
    *a=0;
    while (c>33)
    {
        *a=*a*10+c-'0';
        c=getchar_unlocked();
    }
}

inline void fastRead_string(char *str)
{
    register char c=0;
    register int i = 0;
    while (c < 33)
        c = getchar_unlocked();
    while (c > 65)
    {
        str[i] = c;
        c = getchar_unlocked();
        i = i + 1;
    }

    str[i] = '\0';
}


int main()
{

  int n;
  char s[16];
  fastRead_int(&n);
  fastRead_string(s);
  return 0;
}