task1
//打印不及格学生信息和所有学生信息程分别调用 #include<stdio.h> #include<string.h> #define N 3 typedef struct student { int id; char name[20]; char subject[20]; 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); //输出学生成绩 void calc(STU[],int); //计算总评和等级 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; //记录不及格学生人数 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-i-1;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<stdlib.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"}, {"《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输入图书名:"); 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 Filmifo *next; }Film; void output(Film *head); //遍历链表信息 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("输入影片题目:"); 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); 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); //把结点从表头插入到链表中 p->next = head; head = p; //更新头结点 } 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}}; //原始学生成绩记录 STU h[N]; //保存均分以上学生记录 int i,k,n=10; k = fun(s,n,h); //对学生成绩进行处理 printf("There are :\n"); //输出均分以上学生记录 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,k; double sum=0.0; for(i=0;i<n;i++) { a[i].sum=a[i].s1 * 0.7 + a[i].s2 * 0.3; sum = sum + a[i].sum; } sum = sum/n; for(i=0;i<n;i++) { if(a[i].sum>sum){ strcpy(a[i].level,"均分以上"); h[k]=a[i]; k++; } } return k; }
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,j; STU t; for (i=0;i<n;i++) a[i].sum=a[i].maths + a[i].computer + a[i].english; for (i=0;i<n-1;i++) for (j=0;j<n-1-i;j++) if (a[j].sum<a[j+1].sum) { t=a[j]; a[j]=a[j+1]; a[j+1]=t; } for (i=0;i<n;i++) { if(a[i].sum == a[0].sum) strcpy(a[i].level,"优秀"); else if (a[i].sum == a[4].sum) strcpy(a[i].level,"不及格"); 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; 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 min = s[0].score,k = 0,i; 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]; k++; } } return k; }
标签:head,int,void,编程,char,STU,实验,应用,printf From: https://www.cnblogs.com/apeach/p/17432689.html