2018.3.4实验修正

Posted 2020-10-26 evanscabin

 1 #include<iostream>
 2 #include<stdlib.h>
 3 using namespace std;
 4 int sort(int *score,int count);          //函数间传递数组：int score[]/int *score
 5 int ave(int *score,int count);
 6 int main()
 7 {
 8     int count;
 9     cout << "请输入成绩个数：";
10     cin >>  count;
11     cout << endl;
12     if(count<=0)
13     cout << "error!";
14     else
15     {
16         int *point;
17         point=new int[count];
18         if(point==NULL)
19         {
20             cout << "动态分配内存空间失败！";
21             exit(0);
22             return NULL; 
23         }
24         cout << "请输入成绩：";
25         for(int i=0;i<count;i++)　　　　//注意输入和输出！
26             cin >> point[i];
27         cout << endl;
28         int average=ave(point,count);
29         cout << "平均分为："<<average<<endl;
30         sort(point,count);
31         cout << "排序后成绩为：";
32         for(int i=0;i<count;i++,point++)
33             cout << *point<<" ";
34     }
35     return 0;
36 }
37 
38 
39 int sort(int *score,int count)
40 {
41     int i,j,tem;
42     for(i=0;i<count;i++)
43     {
44         for(j=i+1;j<count;j++)
45         {
46             if(score[j]>score[i])
47             {
48                 tem=score[j];
49                 score[j]=score[i];
50                 score[i]=tem;
51             }
52         }
53     }
54 }
55 
56 int ave(int *score,int count)
57 {
58     int i,sum=0;
59     float ave;
60     for(i=0;i<count;i++)
61     {
62         sum+=score[i];
63     }
64     ave=sum/count;
65     return ave;
66 }

总算改对了一个。

 1 #include<iostream>
 2 #include<stdlib.h>
 3 using namespace std;
 4 int* space(int count);
 5 int sort(int *score,int count); 
 6 int ave(int *socre,int count);
 7 int main()
 8 {
 9     int count;
10     cout << "请输入成绩个数：";
11     cin >>  count;
12     cout << endl;
13     if(count<=0)
14     cout << "error!";
15     else
16     {
17         int point[count];
18         *point=*space(count);
19         cout << "请输入成绩：";
20         for(int i=0;i<count;i++)
21             cin >> point[i];
22         cout << endl;
23         int average=ave(point,count);
24         cout << "平均分为："<<average<<endl;
25         sort(point,count);
26         cout << "排序后成绩为：";
27         for(int i=0;i<count;i++)
28              cout << point[i]<<" ";
29     }
30     return 0;
31 }
32     
33 int *space(int count)
34 {
35     int *dyn;
36     dyn=new int [count];
37     if(dyn==NULL)
38     {
39         cout << "动态分配内存空间失败！";
40         exit(0);
41         return NULL; 
42     }
43     return dyn;        //返回空间地址
44 }
45 
46 int sort(int *score,int count)
47 {
48     int i,j,tem;
49     for(i=0;i<count;i++)
50     {
51         for(j=i+1;j<count;j++)        //注意排序方式！
52         {
53             if(score[j]>score[i])
54             {
55                 tem=score[j];
56                 score[j]=score[i];
57                 score[i]=tem;
58             }
59         }
60     }
61 }
62 
63 int ave(int *score,int count)
64 {
65     int i,sum=0;
66     float ave;
67     for(i=0;i<count;i++)
68     {
69         sum+=score[i];
70     }
71     ave=sum/count;
72     return ave;
73 }