zoj 1755 Clay Bully

#include <stdio.h>#include <stdlib.h>struct student{    int len;    int wid;    int hig;    int v;    char name[11];}stu[11];int main(void){    int num,minv,maxv,min,max,i;    while( scanf("%d",&num) && num!=-1)    {        minv = 250; maxv = 0;        for(i=0; i<num; i++)        { scanf("%d%d%d%s",&stu[i].len,&stu[i].wid,&stu[i].hig,stu[i].name); stu[i].v = stu[i].len*stu[i].wid*stu[i].hig; if( stu[i].v > maxv) {     maxv = stu[i].v;     max = i; } if(stu[i].v < minv) {     minv = stu[i].v;     min = i; }         }        printf("%s took clay from %s.n",stu[max].name,stu[min].name);    }return 0;}