Question

谁有c语言程序设计苏小红版第8单元课后实验题答案

Answer 1

#include <stdio.h>
#define N 30
int Average(int score[], int n); /* Average()函数原型 */
void ReadScore(int score[], long num[],int n); /* ReadScore()函数原型 */
void DataSort(int score[], long num[], int n);
void PrintScore(int score[], long num[], int n);
void DataNum(int score[], long num[], int n);
void PrintNum(int score[], long num[], int n);
void SearchNum(int score[],long num[],int n);
void Statistics(int score[], int n);
void List(int score[], long num[], int n);
int main()
{
int choice,n,score[N], aver=0,i,sum=0;
long num[N];
do
{
printf("1: Append record\n");
printf("2: Caculate total and average score of course\n");
printf("3: Sort in descending order by score\n");
printf("4: Sort in ascending order by number\n");
printf("5: Search by number\n");
printf("6: Statistic analysisc\n");
printf("7: List record\n");
printf("0: Exit\n");
scanf("%d",&choice);
switch(choice)
{
case 1:printf("Total students are:");
scanf("%d",&n);
ReadScore (score,num,n);
break;
case 2:aver = Average(score, n);
printf("Average score is %d\n",aver);
for (i=0; i<n; i++)
{
sum += score[i];
}
printf("Caculate total score is %d\n",sum);
break;
case 3:DataSort(score,num,n);
printf("Sorted scores :\n");
printf(" number: score: \n");
PrintScore(score,num,n);
break;
case 4:DataNum(score,num,n);
printf("Sorted number :\n");
printf(" number: score: \n");
PrintNum(score,num,n);
break;
case 5:SearchNum(score,num,n);
break;
case 6:Statistics(score, n);
break;
case 7:List(score,num,n);
break;
case 0:break;
}
}while(choice!=0);
return 0;
}
/* 1、函数功能：输入n个学生的学号及某门课成绩 */
void ReadScore(int score[], long num[],int n)
{
int i;
for(i=0;i<n;i++)
{
printf("Input student's ID and score:");
scanf("%ld%d",&num[i],&score[i]);
}
}
/* 2、函数功能：计算课程的总分和平均分 */
int Average(int score[], int n) /* Average()函数定义 */
{
int i, sum = 0;
for (i=0; i<n; i++)
{
sum += score[i];
}
return sum / n;
}
/* 3、函数功能：成绩由高到低排序 */
void DataNum(int score[], long num[], int n)
{
int i,j,k,temp1;
long temp2;
for(i=0;i<n-1;i++)
{
k=i;
for(j=i+1;j<n;j++)
{
if (score[j]>score[k])
{
k=j;
}
}
if(k!=i)
{
temp1=score[k];score[k]=score[i];score[i]=temp1;
temp2=num[k];num[k]=num[i];num[i]=temp2;
}
}
}
/* 函数功能：显示排序后学生学号和成绩 */
void PrintNum(int score[], long num[], int n)
{
int i;
for(i=0;i<n;i++)
{
printf(" %10ld %4d\n",num[i],score[i]);
}
}
/* 4、函数功能：学号由小到大排序 */
void DataSort(int score[], long num[], int n)
{
int i,j,k,temp1;
long temp2;
for(i=0;i<n-1;i++)
{
k=i;
for(j=i+1;j<n;j++)
{
if (num[j]<num[k])
{
k=j;
}
}
if(k!=i)
{
temp1=num[k];num[k]=num[i];num[i]=temp1;
temp2=score[k];score[k]=score[i];score[i]=temp2;
}
}
}
/* 函数功能：显示排序后学生学号和成绩 */
void PrintScore(int score[], long num[], int n)
{
int i;
for(i=0;i<n;i++)
{
printf(" %10ld %4d\n",num[i],score[i]);
}
}
/* 5、函数功能：按学号查询学生排名及其成绩*/
void SearchNum(int score[],long num[],int n)
{
long number;
int i;
printf("Please input the number you want to search:");
scanf("%ld",&number);
for(i=0;i<n;i++)
{
if(num[i]==number)
{
printf(" %ld %d\n",num[i],score[i]);
return;
}
}
printf("\nNot found!\n");
}
/* 6、函数功能：统计个人类别的人数以及所占的百分比*/
void Statistics(int score[], int n)
{
int i,a=0,b=0,c=0,d=0,e=0;
for(i=0;i<n;i++)
{
if(score[i]>=90)
{
a++;
}
else if(score[i]>=80)
{
b++;
}
else if(score[i]>=70)
{
c++;
}
else if(score[i]>=60)
{
d++;
}
else
{
e++;
}
}
printf("优秀人数:%d\t占:%.3f%%\n良好人数:%d\t占:%.3f%%\n中等人数:%d\t占:%.3f%%\n及格人数:%d\t占:%.3f%%\n不及格人数:%d\t占:%.3f%%\n",a,(float)100*a/n,b,(float)100*b/n,c,(float)100*c/n,d,(float)100*d/n,e,(float)100*e/n);
}
/* 7、函数功能：输入学生学号、成绩、总分、平均分*/
void List(int score[], long num[], int n)
{
int i, j=0;
for(i=0;i<n;i++)
{
printf("学号:%ld\t考试成绩:%d\n",num[i],score[i]);
j+=score[i];
}
printf("课程总分:%d\n平均分:%.3f\n",j,(float)j/n);
}

Answer 2

利用搜索引擎 搜下吧 我没有