关于结构体的问题 怎么把volume=length*width*high;加入程序里？

Question

#include<stdio.h>struct student{ int length,width,high,volume; char name[8];};//结构型定义结束一定要加分号int main(){ struct student stu[9]; int i,N,temp; scanf("%d",&N); for(i=0;i<N;i++) scanf("%d%d%d%s",&stu[i].length,&stu[i].width,&stu[i].high,stu[i].name); for(i=0;i<N;i++) { if(stu[i].volume>stu[i+1].volume) { temp=stu[i].volume; stu[i].volume=stu[i+1].volume; stu[i+1].volume=temp; } } printf("%s took clay from %s\n",stu[N-1].name,stu[0].name); return 0;}