三道指针C语言（同号、ASCII码、随机算术题）

Question

Answer 1

题目不完整啊

int main()
{
  char w[100] = {0};
  char *p = w;
  scanf("%s",p);
  char cmax = 0;
  while(*p != 0)
  {
    if(*p) > cmax)
      cmax = *p;
      p++;
  }
  printf("最大字符为%c，ASCII码为%d\n",cmax,cmax);
  return 0;
}