结构体数组中存有三人的姓名和年龄,以下程序输出三人中最年长者的姓名和年龄。请填空 #include "stdio.h" struct man { char name[20]; int age; }person[]={ "LiLing",18, "YangHua",19, "ZhangPing",20 }; int main() { struct man *p,*q; int old=0; p=person; for( ;p < [填空(1)] ;p++) if(old age) {q=p; [填空(2)] ;} printf("%s %d",q->name,q->age ); return 0; }