实验六

任务4

#include <stdio.h>
#include <string.h>
#define N 100

typedef struct {
    char num[10];
    int s1;
    int s2;
    double sum;
    char level[10];
}STU;

int fun(STU a[],int n,STU h[]);
int main(){
    STU s[N]={ {"GA05", 85, 76}, 
              {"GA03", 76, 90}, 
              {"GA02", 69, 90}, 
              {"GA04", 85, 56}, 
              {"GA01", 91, 95},
              {"GA07", 72, 80}, 
              {"GA08", 64, 45}, 
              {"GA06", 87, 98}, 
              {"GA015", 85, 86}, 
              {"GA013", 91, 97} }; 
    STU h[N];
    int i,k,n = 10;
    k = fun(s,n,h);
    printf("There are:\n");
     for(i = 0;i < k;i++)
     printf("%s %d %d %.2f %s\n",h[i].num,h[i].s1,h[i].s2,h[i].sum,h[i].level);
     
     return 0;
}
int fun(STU a[],int n,STU h[]){
    int i,l=0;
    double k=0;
    STU *p=a;
    for(;p<a+n;p++)
    {p->sum=p->s1*0.7+p->s2*0.3;
    k+=p->sum;}
    for(i=0,p=a;p<a+n;p++,i++)
    {if((p->sum)>k/n)
    {
        strcpy(p->level,"均分以上");
        h[l++]=a[i];}
    }
    return l;
    
}

任务5

#include <stdio.h>
#include <string.h>
#define N 5

typedef struct student {
    char name[10];
    int num;
    int maths;
    int computer;
    int english;
    int sum;
    char level[10];
}STU;

void fun(STU a[],int n);

int main(){
    STU s[6*N]={ {"A001", 1, 34, 67, 80},
                 {"B003", 3, 78, 87, 90},
                 {"A002", 2, 90, 98, 99},
                 {"B002", 4, 56, 78, 98},
                 {"A005", 5, 35, 67, 79} };
    int i;
    
    fun(s,N);
    for(i = 0;i < N;i++)
    printf("%s %d %d %d %d %d %s\n",s[i].name,s[i].num,s[i].maths,s[i].computer,s[i].english,s[i].sum,s[i].level);
    
    return 0;
}
void fun(STU a[],int n){
    int m1,m2=500,i;
    for(i=0;i<n;i++){
        a[i].sum=a[i].maths+a[i].computer+a[i].english;
        if(m1<a[i].sum)
        m1=a[i].sum;
        if(m2>a[i].sum)
        m2=a[i].sum;
    }
    for(i=0;i<n;i++){
        if(m1==a[i].sum)
        strcpy(a[i].level,"优秀");
        else if(m2==a[i].sum)
        strcpy(a[i].level,"不及格");
        else
        strcpy(a[i].level,"及格"); 
    }
}

任务6

#include <stdio.h>

#define N 5

typedef struct student {
    long no;
    char name[20];
    int score;
}STU;

void input(STU s[],int n);
int find_min_list(STU s[],STU t[],int n);
void output(STU s[],int n);

int main() {
    STU stu[N],min_list[N];
    int count;
    
    printf("录入%d个学生信息\n",N);
    input(stu,N);
    printf("\n统计最低分人数和学生信息...\n");
    count = find_min_list(stu,min_list,N);
    
    printf("\n一共有%d个最低分，信息如下：\n",count);
    output(min_list,count);
    
    return 0;
}
void input(STU s[],int n){
    int i;
    for(i=0;i<n;i++)
    {
        scanf("%d %s %d",&s[i].no,s[i].name,&s[i].score);
    }
}
void output(STU s[],int n){
    int i;
    for(i=0;i<n;i++){
        printf("%d %s %d\n",s[i].no,s[i].name,s[i].score);
    }
}
int find_min_list(STU s[],STU t[],int n){
    int i,min=100,k=0;
    for(i=0;i<n;i++){
        if(s[i].score<min)
        min=s[i].score;
    }
    for(i=0;i<n;i++){
        if(s[i].score == min)
        t[k++]=s[i];
    }
    return k;
}