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May 31st, 2009

help plz with grading program

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hi
i need help with my grading program

i need to do something so the menu comes up and make it work property

i have no idea on my switch statement and how to delete student from list please help me

C Syntax (Toggle Plain Text)
#include <stdio.h>
 
 
void main()
{
 
 int ssn[1000];
 int sex[1000];
 char name[1000][30];
 int Assignment_average[1000];
 int Quiz_Average[1000];
 int participation[1000];
 int Midterm[1000];
 int final[1000];
 int i,j,menu;
 int cnt=0;
 int tot[1000];
 
 double avr[1000]; 
 int score[1000];
 int best[1000];
 
printf("1.Print list of  students\n3.Print list of  those whom made an A grade\n4.Print list of  those  whom made an F grade\n5.Print list of  students sorted by name\n6.add student to the class list\n7.delete student from class list\n8.	quit",&menu )
scanf("%d",&menu);
 
switch(menu)
{
	case 1:
	case 2:
	case 3:
	case 4:
}	
 
 
  if(ssm[i]==-999) break;  //add students  
  printf("Input a Name! =");
  scanf("%s",&name[i]);
  printf("Input a Assignment_average=");
  scanf("%d",&Assignment_average[i]);
  printf("Input a Quiz_Average=");
  scanf("%d",&Quiz_Average[i]);
  printf("Input a participation=");
  scanf("%d",&participation[i]);
  printf("Input a Midterm=");
  scanf("%d",&Midterm[i]);
  printf("Input a final=");
  scanf("%d",&final[i]);
  cnt++;
    }
 
 
 
 for(i=0;i {
tot[i]=0.40*Assignment_average[i]+ Quiz_Average[i]*0.15+ participation[i]*0.10+Midterm[i]*0.15+ final[i]*0.20  avr[i]=tot[i]*100;
 }
#include <stdio.h>


void main()
{

 int ssn[1000];
 int sex[1000];
 char name[1000][30];
 int Assignment_average[1000];
 int Quiz_Average[1000];
 int participation[1000];
 int Midterm[1000];
 int final[1000];
 int i,j,menu;
 int cnt=0;
 int tot[1000];

 double avr[1000]; 
 int score[1000];
 int best[1000];

printf("1.Print list of  students\n3.Print list of  those whom made an A grade\n4.Print list of  those  whom made an F grade\n5.Print list of  students sorted by name\n6.add student to the class list\n7.delete student from class list\n8.	quit",&menu )
scanf("%d",&menu);

switch(menu)
{
	case 1:
	case 2:
	case 3:
	case 4:
}	
	
 
  if(ssm[i]==-999) break;  //add students  
  printf("Input a Name! =");
  scanf("%s",&name[i]);
  printf("Input a Assignment_average=");
  scanf("%d",&Assignment_average[i]);
  printf("Input a Quiz_Average=");
  scanf("%d",&Quiz_Average[i]);
  printf("Input a participation=");
  scanf("%d",&participation[i]);
  printf("Input a Midterm=");
  scanf("%d",&Midterm[i]);
  printf("Input a final=");
  scanf("%d",&final[i]);
  cnt++;
    }

 

 for(i=0;i {
tot[i]=0.40*Assignment_average[i]+ Quiz_Average[i]*0.15+ participation[i]*0.10+Midterm[i]*0.15+ final[i]*0.20  avr[i]=tot[i]*100;
 }

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wislean

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Newbie Poster

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since May 2009

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May 31st, 2009

Re: help plz with grading program

Ooh, yet another grade supersystem...

Better try to search DaniWeb for grade. There are lots of dozens of grade calculation threads (solved

)...

ArkM

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Postaholic

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Jun 3rd, 2009

Re: help plz with grading program

I would clean up the printf a bit by making it more readable. Also I am not sure why you are passing the argument "&menu" to your printf. Its incorrect in this context.

Something like this would be much easier to read.

C Syntax (Toggle Plain Text)
printf("1.Print list of  students\n");
printf("3.Print list of  those whom made an A grade\n");
printf("4.Print list of  those  whom made an F grade\n");
printf("5.Print list of  students sorted by name\n");
printf("6.add student to the class list\n");
printf("7.delete student from class list\n");
printf("8.	quit\n");
printf("1.Print list of  students\n");
printf("3.Print list of  those whom made an A grade\n");
printf("4.Print list of  those  whom made an F grade\n");
printf("5.Print list of  students sorted by name\n");
printf("6.add student to the class list\n");
printf("7.delete student from class list\n");
printf("8.	quit\n");

And after you've read the menu, you need to perform the processing for the menu item selected in your switch case.

C Syntax (Toggle Plain Text)
switch (menuitem){
  case 1:
    // print list 
    break;
  case 2:
    // print list of A students 
    break;
  ...
  ....
 
  default:
    break;
}
switch (menuitem){
  case 1:
    // print list 
    break;
  case 2:
    // print list of A students 
    break;
  ...
  ....

  default:
    break;
}

stilllearning

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Posting Whiz

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since Oct 2007

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Jun 3rd, 2009

Re: help plz with grading program

"Please don't kill the codes,Pay them some respect "
After all,they are "your" codes:

c Syntax (Toggle Plain Text)
for(i=0;i {
tot[i]=0.40*Assignment_average[i]+ Quiz_Average[i]*0.15+ participation[i]*0.10+Midterm[i]*0.15+ final[i]*0.20  avr[i]=tot[i]*100;
 }
for(i=0;i {
tot[i]=0.40*Assignment_average[i]+ Quiz_Average[i]*0.15+ participation[i]*0.10+Midterm[i]*0.15+ final[i]*0.20  avr[i]=tot[i]*100;
 }

Complete their format at least....

Errors:
>Usage of "&menu" in printf is not only syntactically wrong but also useless.Why do you want to print value of menu there???

>The code :

c Syntax (Toggle Plain Text)
printf("Input a Name! =");
  scanf("%s",&name[i]);
printf("Input a Name! =");
  scanf("%s",&name[i]);

is incorrect usage.If you want to pick the i th name then

c Syntax (Toggle Plain Text)
scanf("%s",name[i]);
scanf("%s",name[i]);

is enough as per your declaration of name array.

Last edited by csurfer; Jun 3rd, 2009 at 2:56 pm.

csurfer

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