实验六

实验任务1

程序代码:

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 3

typedef struct student{
    int id;//学号
    char name[20];//姓名
    char subject[20];//考试科目
    double perf;//平时成绩
    double mid;//期中成绩
    double final;//期末成绩
    double total;//总评成绩
    char level[10];//成绩等级
}STU;

void input(STU[],int);//录入学生信息
void output(STU[],int);//输出学生信息
void calc(STU[],int);//计算
int fail(STU[],STU[],int);//统计不及格学生信息
void sort(STU[],int);//排序

int main(){
    STU st[N],fst[N];//st记录学生信息,fst记录不及格学生信息
    int k;//记录不及格学生数目

    printf("录入学生成绩信息:\n");
    input(st,N);

    printf("\n成绩处理…\n");
    calc(st,N);

    k=fail(st,fst,N);
    sort(st,N);
    printf("\n学生排名情况:\n");
    output(st,N);

    printf("\n不及格学生信息:\n");
    output(fst,k);

    system("pause");
    return 0;
}

void input(STU s[],int n){
    int i;
    for(i=0;i<n;i++){
        scanf("%d %s %s %lf %lf %lf",&s[i].id,s[i].name,s[i].subject,&s[i].perf,&s[i].mid,&s[i].final);
    }
}

void output(STU s[],int n){
    int i;
        printf("--------------------------------------------------------------------\n");
        printf("      学号    姓名    科目    平时    期中    期末    总评    等级\n");
        for(i=0;i<n;i++){
            printf("    %d    %6s    %4s    %4.0lf    %4.0lf    %4.0lf    %4.1lf    %s\n",s[i].id,s[i].name,s[i].subject,s[i].perf,s[i].mid,s[i].final,s[i].total,s[i].level);
        }
}

void calc(STU s[],int n){
    int i;
    for(i=0;i<n;i++){
        s[i].total=s[i].perf*0.2+s[i].mid*0.2+s[i].final*0.6;
        if(s[i].total>=90)
            strcpy(s[i].level,"");
        else{
            if(s[i].total>=80)
                strcpy(s[i].level,"");
        else{
            if(s[i].total>=70)
                strcpy(s[i].level,"");
        else{
            if(s[i].total>=60)
                strcpy(s[i].level,"及格");
        else
            strcpy(s[i].level,"不及格");
        }
        }
        }
    }
}

int fail(STU s[],STU t[],int n){
    int i,k;
    for(i=0,k=0;i<n;i++){
        if(s[i].total<60)
            t[k++]=s[i];

    }
    return k;
    
}

void sort(STU s[],int n){
    int i,j;
    STU t;
    for(i=0;i<n-1;i++){
        for(j=0;j<n-1-i;j++){
            if(s[i].total<s[i+1].total){
                t=s[i];
                s[i]=s[i+1];
                s[i+1]=t;
            }
    }
}
}

运行结果:

 实验任务2

程序代码:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 10
#define M 80

typedef struct{
    char name[M];
    char author[M];
}Book;

int main(){
    Book x[N]={{"《一九九四》","乔治.奥威尔"},
    {"《美丽新世界》","赫胥黎"},
    {"《昨日的世界》","斯蒂芬.茨威格"},
    {"《万历十五年》","黄仁宇"},
    {"《一只特立独行的猪》","王小波"},
    {"《百年孤独》","马尔克斯"},
    {"《查令十字街84号》","海莲.汉芙"},
    {"《只是孩子》","帕蒂.史密斯"},
    {"《刀锋》","毛姆"},
    {"《沉默的大多数》","王小波"}};
    int i;
    char name[M];

    printf("所有图书信息:\n");
    for(i=0;i<N;i++){
        printf("%-30s %-20s\n",x[i].name,x[i].author);
    }

    printf("输入作者名:");
    scanf("%s",name);
    
    for(i=0;i<N;i++){
        if(strcmp(x[i].author,name)==0)
            printf("%-30s %-20s\n",x[i].name,x[i].author);
    }

    system("pause");
    return 0;
}

运行结果:

 实验任务3

程序代码:

#include <stdio.h>
#include <stdlib.h>
#define N 80
typedef struct filminfo{
    char name[N];
    char director[N];
    char region[N];
    int year;
    struct filminfo *next;
}film;

void output(film *head);//遍历输出链表信息
film *insert(film *head,int n);//向链表中插入n个结点,返回头指针

int main(){
    int n;//结点数
    film *head;//头结点

    head=NULL;
    printf("输入影片数目:");
    scanf("%d",&n);

    //向链表中插入n部影片信息
    head=insert(head,n);

    //遍历输出链表中所有影片信息
    printf("\n所有影片信息如下:\n");
    output(head);

    system("pause");
    return 0;
}

//向链表中插入n个结点,从表头插入,返回头指针
film *insert(film *head,int n){
    int i;
    film *p;
    
    for(i=1;i<=n;++i){
        p=(film *)malloc(sizeof(film));
        printf("请输入第%d部影片信息:",i);
        scanf("%s %s %s %d",p->name,p->director,p->region,&p->year);

        p->next=head;//把结点从表头插入到链表中
        head=p;//更新头结点
    }
    return head;
}

//遍历输出链表信息
void output(film *head){
    film *p;

    p=head;
    while(p!=NULL){
        printf("%-20s %-20s %-20s %d\n",p->name,p->director,p->region,p->year);
        p=p->next;
    }
}

运行结果:

 实验任务4

程序代码:

#include <stdio.h>
#include <stdlib.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);
system("pause");
return 0;
}

int fun (STU a[], int n, STU h[]) {
    int i,j;
    double sum_=0.0,pj;
    for(i=0;i<n;i++)
        a[i].sum=0.3*a[i].s2+0.7*a[i].s1;
    for(i=0;i<n;i++)
        sum_+=a[i].sum;
    pj=sum_/(n*1.0);
    for(i=0,j=0;i<n;i++)
        if(a[i].sum>pj){
            strcpy(a[i].level,"均分以上");
            h[j++]=a[i];
        }
        return --j;
}

运行结果:

实验任务5

程序代码:

#include <stdio.h>
#include <stdlib.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);
system("pause");
return 0;
}

void fun(STU a[], int n) {
int i,max,min;
for(i=0;i<n;i++)
a[i].sum=a[i].maths+a[i].computer+a[i].english;
for(i=0,max=a[0].sum,min=a[0].sum;i<n-1;i++){
if(a[i+1].sum>max)
max=a[i+1].sum;
if(a[i+1].sum<min)
min=a[i+1].sum;
}
for(i=0;i<n;i++){
if(a[i].sum==max)
strcpy(a[i].level,"优秀");
else{
if(a[i].sum==min)
strcpy(a[i].level,"不及格");
else
strcpy(a[i].level,"合格");
}
}
}

运行结果:

实验任务6

程序代码:

#include <stdio.h>
#include <stdlib.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);
system("pause");
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,j,k;
    for(i=0,j=s[0].score;i<n;i++)
        if(s[i].score<j)
            j=s[i].score;
    for(i=0,k=0;i<n;i++)
        if(s[i].score==j)
            t[k++]=s[i];
    return k;
}

运行结果:

 

posted @ 2023-05-25 21:23  moreless-xu  阅读(21)  评论(1)    收藏  举报