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实验6

时间：2023-06-01 09:04:00浏览次数：31  
标签：level int void ++ STU 实验 printf

task1

#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;
        }
}

 task2

#include <stdio.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];
 
     
    printf("所有图书信息: \n");
    for(ptr = x; ptr < x + N; ++ptr)
        printf("%-30s%-30s\n", ptr->name, ptr->author);
 
     
    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;
}

 task3

#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);
    printf("\n影片信息：\n");
    output(head);
    return 0;
}
 
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;
        head = p;  
    }
    return head;
}
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;
    }
}

 task4

#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, j = 0;
    double all = 0, ave;
    for(i = 0;i<n;i++){
        a[i].sum = a[i].s2*0.3 + a[i].s1*0.7;
        all += a[i].sum;
    }
    ave = all/n;
    for(i = 0;i<n;i++){
        if(a[i].sum > ave){
            strcpy(a[i].level, "均分以上");
            h[j++] = a[i];
              
        }
        else
            strcpy(a[i].level, "均分以下");
    }
    return j;
}

 task5

#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 i,max = 0,min = 300;
    for(i = 0;i < n;i++){
        a[i].sum = a[i].maths + a[i].computer + a[i].english;
        if(a[i].sum > max)
            max = a[i].sum;
        if(a[i].sum < min)
            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, "不合格");
        else
            strcpy(a[i].level, "合格");
    }
}

 task6

#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,j=0;
    for(i = 0; i < n; i++)
        printf("%ld %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=s[0].score,ans=0,j=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[j++]=s[i];
            ans++;
        }       
    }
    return ans;   
}

 

标签：level,int,void,++,STU,实验,printf
From： https://www.cnblogs.com/zhuquekameitielongyu/p/17447905.html

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