#include #include struct stu { char num[6]; char class[3]; char name[6]; float grade1; float grade2; float grade3; float grade; }s[10],ss; int main() { strcpy(s[0].num,"10001");strcpy(s[0].class,"11");strcpy(s[0].name,"Zhang");s[0].grade1=99.5;s[0].grade2=88.5;s[0].grade3=89.5;s[0].grade=s[0].grade1+s[0].grade2+s[0].grade3; strcpy(s[1].num,"10002");strcpy(s[1].class,"12");strcpy(s[1].name,"Yang");s[1].grade1=77.9;s[1].grade2=56.5;s[1].grade3=87.5;s[1].grade=s[1].grade1+s[1].grade2+s[1].grade3; strcpy(s[2].num,"10003");strcpy(s[2].class,"11");strcpy(s[2].name,"Liang");s[2].grade1=92.5;s[2].grade2=99.0;s[2].grade3=60.5;s[2].grade=s[2].grade1+s[2].grade2+s[2].grade3; scanf("%s%s%s%f%f%f",s[3].num,s[3].class,s[3].name,&s[3].grade1,&s[3].grade2,&s[3].grade3); s[3].grade=s[3].grade1+s[3].grade2+s[3].grade3; for(int i=0;i<3;i++) { if(strcmp(s[i].num,s[3].num)==0) { s[i]=s[3]; } } for(int i=0;i<2;i++) { for(int j=i+1;j<3;j++) { if(strcmp(s[i].class,s[j].class)>0) { ss=s[i]; s[i]=s[j]; s[j]=ss; } } } for(int i=0;strcmp(s[i].class,s[0].class)==0;i++) { for(int j=i+1;strcmp(s[j].class,s[0].class)==0;j++) { if(s[i].grade