management30/6.c

#include <stdio.h>
#include <string.h>
int cnt=0;
struct student{
	int clas,modified;
    char id[20],name[20];
    double score1,score2,score3,total;
}s[10];

void input(){
	int i,j;
	for(i=0;i<3;i++){
		scanf("%s%d%s%lf%lf%lf",s[i].id,&s[i].clas,s[i].name,&s[i].score1,&s[i].score2,&s[i].score3);
		s[i].modified=0;
		cnt++;
		s[i].total=s[i].score1+s[i].score2+s[i].score3;
	}
}

void modify(){
	char str[20];
	scanf("%s",str);
	int i=find(str);
	if(i!=-1){
		scanf("%d%s%lf%lf%lf",&s[i].clas,s[i].name,&s[i].score1,&s[i].score2,&s[i].score3);
		s[i].total=s[i].score1+s[i].score2+s[i].score3;
		s[i].modified=1;
	}
}

int find(char str[]){
	int i;
	for(i=0;i<cnt;i++){
		if(strcmp(s[i].id,str)==0||strcmp(s[i].name,str)==0){
			return i;
		}
	}
	return -1;
}

void order(){
	int i,j;
	for(i=0;i<cnt-1;i++){
		for(j=0;j<cnt-i-1;j++){
			if(s[j].clas>s[j+1].clas||(s[j].clas==s[j+1].clas&&s[j].total<s[j+1].total)){
				struct student t;
				t=s[j];
				s[j]=s[j+1];
				s[j+1]=t;
			}
		}
	}	
}

void output(){
	int i;
	for(i=0;i<cnt;i++){
		if(i==0||s[i].clas!=s[i-1].clas) printf("%d ",s[i].clas);
		else printf("   ");
		printf("%s %s %.1f %.1f %.1f",s[i].id,s[i].name,s[i].score1,s[i].score2,s[i].score3);
		if(s[i].modified==1) printf(" modified");
		printf("\n");
	}
}

int main(){
	input();
	modify();
	order();
	output();
	return 0;
}
//10001 11 Zhang 99.5 88.5 89.5
//10002 12 Yang 77.9 56.5 87.5
//10003 11 Liang 92.5 99.0 60.5
//10001 11 Zhang 99 88 89