C Language: 算分数

蜡笔小烦

1. /*
   
2. User will be prompt for number of quiz that has been taken.
   
3. User has to input their marks for each quiz.
   
4. Your program will calculate the average of the marks.
   
5. Find the lowest mark of those quizzes.
   
6. Find the 3 highest mark of those quizzes.
   
7. Those highest marks must be in order (from highest to lowest).
   
8. eg:
   
9. Number of quiz taken : 5
   
10. Please input mark for quiz 1: 10
    
11. Please input mark for quiz 2: 30
    
12. Please input mark for quiz 3: 20
    
13. Please input mark for quiz 4: 40
    
14. Please input mark for quiz 5: 60
    
15. Your average mark is 32.
    
16. Your lowest mark is 10.
    
17. The three highest marks for your quizzes are 60, 40, 30.
    
18. */
    
19. #include<stdio.h>
    
20. void main()
    
21. {
    
22. int i,num;
    
23. float mark[10];
    
24. float total,avg;
    
25. float lowest;
    
26. printf("Number of quiz taken : ";
    
27. scanf("%d",&num);
    
28. for(i=0;i<num;i++)
    
29. {
    
30.   printf("lease input mark for quiz %d: ",i+1);
    
31.   scanf("%d",&mark);
    
32.   total=total+mark;
    
33. }
    
34. avg=total/num;
    
35. printf("Your average mark is %.2f.\n",avg);
    
36. lowest=mark[0];
    
37. for(i=0;i<5;i++)
    
38. {
    
39.   if(mark<lowest)
    
40.    lowest=mark;
    
41. }
    
42. printf("Your lowest mark is %f.\n",lowest);
    
43. }

复制代码

出了什么问题？
请大家指点迷津。。。
谢谢！~

[ 本帖最后由 蜡笔小烦 于 14-10-2008 06:52 PM 编辑 ]

bomber27

#include
int main()
{
int count,num;
float mark[10];
float total,avg;
float lowest;
printf("Number of quiz taken : "  );
scanf("%d",&num);
for(count=0;count < num; count++)
{
  printf(" Please input mark for quiz %d: ",count+1);
  scanf("%f",&mark[count]);
  total=total+mark[count];
}
avg=total/num;
printf("Your average mark is %.2f.\n",avg);
lowest=mark[0];
for(count=0;count<5;count++)
{
  if(mark[count] < lowest){
   lowest=mark[count];
}
printf("Your lowest mark is %f.\n",lowest);
}

[ 本帖最后由 bomber27 于 15-10-2008 08:35 AM 编辑 ]

蜡笔小烦

原帖由 bomber27 于 15-10-2008 08:29 AM 发表
#include
int main()
{
int count,num;
float mark[10];
float total,avg;
float lowest;
printf("Number of quiz taken : "  );
scanf("%d",&num);
for(count=0;count < num; count++)
{
  prin ...

1. 
   
2. 
   
3. #include<stdio.h>
   
4. 
   
5. int main()
   
6. {
   
7. int count,num;
   
8. float mark[10];
   
9. float total,avg;
   
10. float lowest;
    
11. 
    
12. printf("Number of quiz taken : " );
    
13. scanf("%d",&num);
    
14. for(count=0;count < num; count++)
    
15. {
    
16. printf(" Please input mark for quiz %d: ",count+1);
    
17. scanf("%f",&mark[count]);
    
18. total=total+mark[count];
    
19. }
    
20. avg=total/num;
    
21. printf("Your average mark is %.2f.\n",avg);
    
22. lowest=mark[0];
    
23. for(count=0;count<5;count++)
    
24. {
    
25. if(mark[count] < lowest)
    
26. {
    
27. lowest=mark[count];
    
28. }
    
29. printf("Your lowest mark is %f.\n",lowest);
    
30. }
    
31. }

复制代码

debug 了你这个code后
output 不对哦~
不知道哪里出问题了
看不出来。。。

政治旁观者

output 是什么？
我要看到output后才知道什么问题

bomber27

不好意思，刚才因为cari把 [ i] 当成 italic，所以弄到很乱

#include<stdio.h>

int main(){
    int count,num;
    float mark[10];
    float total,avg;
    float lowest;

    printf("Number of quiz taken : " );
    scanf("%d",&num);
    for(count=0;count < num; count++){
                      printf(" Please input mark for quiz %d: ",count+1);
                      scanf("%f",&mark[count]);
                      total=total+mark[count];
    }
    avg=total/num;
    printf("Your average mark is %.2f.\n",avg);
    lowest=mark[0];
    for(count=0;count<num;count++){
                                   if(mark[count] < lowest){
                                                  lowest=mark[count];
                                   }
    }
    printf("Your lowest mark is %f.\n",lowest);
}

这个才是对的

蜡笔小烦

原帖由 bomber27 于 15-10-2008 12:22 PM 发表
不好意思，刚才因为cari把 [ i] 当成 italic，所以弄到很乱

#include

int main(){
    int count,num;
    float mark[10];
    float total,avg;
    float lowest;

    printf("Number of quiz taken ...

average mark 还是不对哦~

bomber27

不对吗？
我试过了，没有问题啊。。
你用什么compiler？

蜡笔小烦

原帖由 bomber27 于 15-10-2008 04:40 PM 发表
不对吗？
我试过了，没有问题啊。。
你用什么compiler？

Visual C++啊

bomber27

没用过
我是用Dev-C++

蜡笔小烦

原帖由 bomber27 于 15-10-2008 05:30 PM 发表
没用过
我是用Dev-C++

啊？？？

1. 
   
2. /*
   
3. User will be prompt for number of quiz that has been taken.
   
4. User has to input their marks for each quiz.
   
5. Your program will calculate the average of the marks.
   
6. Find the lowest mark of those quizzes.
   
7. Find the 3 highest mark of those quizzes.
   
8. Those highest marks must be in order (from highest to lowest).
   
9. eg:
   
10. Number of quiz taken : 5
    
11. Please input mark for quiz 1: 10
    
12. Please input mark for quiz 2: 30
    
13. Please input mark for quiz 3: 20
    
14. Please input mark for quiz 4: 40
    
15. Please input mark for quiz 5: 60
    
16. Your average mark is 32.
    
17. Your lowest mark is 10.
    
18. The three highest marks for your quizzes are 60, 40, 30.
    
19. */
    
20. #include<stdio.h>
    
21. int main()
    
22. {
    
23.     int count,num;
    
24.     float mark[10];
    
25.     float total,avg;
    
26.     float lowest,highest;
    
27.     printf("Number of quiz taken : " );
    
28.     scanf("%d",&num);
    
29.     for(count=0;count<num; count++)
    
30. {
    
31.   printf(" Please input mark for quiz %d: ",count+1);
    
32.         scanf("%f",&mark[count]);
    
33.         
    
34.   total=total+mark[count];
    
35.     }
    
36.     avg=total/num;
    
37.     printf("Your average mark is %.2f.\n",avg);
    
38.     lowest=mark[0];
    
39.     for(count=0;count<num;count++)
    
40. {
    
41.   if(mark[count] < lowest)
    
42.   {
    
43.    lowest=mark[count];
    
44.   }
    
45.     }
    
46.     printf("Your lowest mark is %.2f.\n",lowest);
    
47. highest=mark[0];
    
48. for(count=0;count<num;count++)
    
49. {
    
50.   if(mark[count] > highest)
    
51.   {
    
52.    highest=mark[count];
    
53.   }
    
54.     }
    
55. printf("Your highest mark is %.2f.\n",highest);
    
56. }
    

复制代码

以上的我做好了lowest和highest.
average卡住了。
然后不知道第二和第三高分要怎么loop。。。

糯米鸡

在你还没有跑for loop之前， 试试放 total=0;

蜡笔小烦

原帖由 糯米鸡 于 15-10-2008 08:53 PM 发表
在你还没有跑for loop之前， 试试放 total=0;

可以了
就是漏了这一个。
谢谢！~

我现在在想着要怎么拿到第二高和第三高的分数

糯米鸡

先从五个里面找出最高的， 然后踢掉它， 剩四个，再从四个找出最高的， 然后踢掉它，剩三个。。。。一直这样下去。