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实验六

时间:2023-05-29 09:59:36浏览次数:37  
标签:head int void char STU 实验 printf

实验任务1 task1.c

#include <stdio.h>
#include <string.h> 
#define N 3        
typedef struct student {
    int id;             
    char name[20];     
    char subject[20];     
    double perf;         
    double mid;         
    double final;         
    double total;         
    char level[10]; 
} STU;

void input(STU [], int);            
void output(STU [], int);           
void calc(STU [], int);                
int fail(STU [], STU [], int);        
void sort(STU [], int);               
int main() {
    STU st[N], fst[N];   
    int k;  
    
    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学生成绩排名情况:\n");
    output(st, N);
    
    printf("\n不及格学生信息:\n");
    output(fst, k);
    
    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   %-4.0f   %-4.0f   %-4.0f   %-4.1f   %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, "优");
        else if(s[i].total >= 80 && s[i].total < 90)
          strcpy(s[i].level, "良");
        else if(s[i].total >= 70 && s[i].total < 80)
          strcpy(s[i].level, "中"); 
        else if(s[i].total >= 60 && s[i].total < 70)
          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 = 0;
      
      for(i = 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[j].total < s[j+1].total) {
            t = s[j];
            s[j] = s[j+1];
            s[j+1] = t;
        }
}

结果

实验任务2 task2.c

#include <stdio.h>
#include <string.h>
#define N 10
#define M 80
typedef struct {
char name[M]; // 书名
char author[M]; // 作者
} Book;
int main() {
Book x[N] = { {"《一九八四》", "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"} };
Book *ptr;
int i;
char author[M];
// 使用指针遍历结构体数组
printf("所有图书信息: \n");
for(ptr = x; ptr < x + N; ++ptr)
printf("%-30s%-30s\n", ptr->name, ptr->author);
// 查找指定作者的图书
printf("\n输入作者名: ");
gets(author);
for(ptr = x; ptr < x + N; ++ptr)
if(strcmp(ptr->author, author) == 0) {
printf("%-30s%-30s\n", ptr->name, ptr->author);
}
return 0;
}

结果:

 实验任务3 task3.c

#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);  
Film *insert(Film *head, int n);   


int main() {
    int n;         
    Film *head;  

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

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

结果:

实验任务4 task4.c

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

typedef  struct { 
    char num[10];       // 学号
    int s1;             // 期末成绩
    int s2;             // 平时成绩
    double sum;         // 总评
    char level[10];     // 等级
} 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,j;
  double s=0,k;
  for(i=0;i<n;i++){
  a[i].sum=a[i].s1*0.7+a[i].s2*0.3;
    s=s+a[i].sum;
    k=s/n;}
 for(i=0;i<n;i++)
  if(a[i].sum>k){
      strcpy(a[i].level,"均分以上");
      h[j++]=a[i];
  }
  return j;
}

结果:

实验任务 5 task5.c

#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);  // 函数声明

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 i;
   int min=300,max=0;
   for(i=0;i<n;i++){
      a[i].sum=a[i].maths+a[i].computer+a[i].english;
      if(max<a[i].sum)
      max=a[i].sum;
      if(min>a[i].sum)
      min=a[i].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");
}
   
}

结果:

实验任务六 task6.c

#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("%ld%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("%ld%s%d",s[i].no,s[i].name,s[i].score);
}
int find_min_list(STU s[], STU t[], int n) {
    int i,min=s[0].score,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;
}

结果:

 

标签:head,int,void,char,STU,实验,printf
From: https://www.cnblogs.com/changdudingqing/p/17439061.html

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