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help me with this code

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Join Date: Jul 2008

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raja289

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help me with this code

Jul 9th, 2008

 Help with Code Tags 
 c Syntax (Toggle Plain Text) 
#include<stdio.h>
#include<string.h>
float avg(float);
main()
{
      FILE *p[2];
      int k,students=10,subjects=4,i,j,id_number,date_of_birth,fail=0;
      float marks[100],total=0,avg;
      char name[30],course_enrolled[30],filename[10];
      for(i=1;i<=2;i++)
           {
                printf("filename"); 
                scanf("%s",&filename);
                p[i]=fopen(filename,"w");
                printf("Enter Name of Student\n",p[i]);
                fscanf(stdin,"%s",&name,p[i]);
                printf("Enter Course In Which Student Is Enrolled\n",p[i]); 
                fscanf(stdin,"%s",&course_enrolled,p[i]);
                printf("Enter ID Number Of %s Enrolled in Course %s\n",name,course_enrolled,p[i]);
                fscanf(stdin,"%d",&id_number,p[i]);
                printf("Enter Date Of Birth Of %s Enrolled in Course %s and\n ID-Number is %d\n",name,course_enrolled,id_number,p[i]);
                fscanf(stdin,"%d",&date_of_birth,p[i]);
                for(j=1;j<=4;j++)
                     {
                     printf("Enter Marks for Subject %d for Student %s\n",j,name);
                     fscanf(stdin,"%f",&marks[j]);
                     total=total+marks[j];
                     if(marks[j]<50)
                     fail=fail+1;
                     else
                     continue;
                     }                                                                                
                     avg=(total/400)*100;
                     printf("AVERAGE=%f\n",avg);
                     if(avg>=70)
                     printf("Grade A\n");
                     if(avg>=60&avg<70)
                     printf("Grade B\n");
                     else if(avg>=50&avg<60)
                     printf("Grade C\n");
                     else if(avg>=45&avg<50)      
                     printf("Grade D\n");
                     else if(avg>=40&avg<45)
                     printf("Grade E\n");
                     else if(avg<40)
                     printf("Fail\n");
                     if(fail>=2)
                     printf("Student is failed and cann;t promote\n");
                     else
                     continue;
                     fclose (p[i]);                    
                }
           for(k=1;k<=2;k++)
           {
           printf("Input filename"); 
           scanf("%s",&filename);
           p[k]=fopen(filename,"r");
           fprintf(stdout,"NAME= %s\tCOURSE ENTITLLED= %s\t ID NUMBER= %d\t DATE OF BIRTH= %d\tAVERAGE= %f\n",name,course_enrolled,id_number,date_of_birth,avg);
           fclose (p[k]);
           }
           getch();
}
#include<stdio.h>
#include<string.h>
float avg(float);
main()
{
      FILE *p[2];
      int k,students=10,subjects=4,i,j,id_number,date_of_birth,fail=0;
      float marks[100],total=0,avg;
      char name[30],course_enrolled[30],filename[10];
      for(i=1;i<=2;i++)
           {
                printf("filename"); 
                scanf("%s",&filename);
                p[i]=fopen(filename,"w");
                printf("Enter Name of Student\n",p[i]);
                fscanf(stdin,"%s",&name,p[i]);
                printf("Enter Course In Which Student Is Enrolled\n",p[i]); 
                fscanf(stdin,"%s",&course_enrolled,p[i]);
                printf("Enter ID Number Of %s Enrolled in Course %s\n",name,course_enrolled,p[i]);
                fscanf(stdin,"%d",&id_number,p[i]);
                printf("Enter Date Of Birth Of %s Enrolled in Course %s and\n ID-Number is %d\n",name,course_enrolled,id_number,p[i]);
                fscanf(stdin,"%d",&date_of_birth,p[i]);
                for(j=1;j<=4;j++)
                     {
                     printf("Enter Marks for Subject %d for Student %s\n",j,name);
                     fscanf(stdin,"%f",&marks[j]);
                     total=total+marks[j];
                     if(marks[j]<50)
                     fail=fail+1;
                     else
                     continue;
                     }                                                                                
                     avg=(total/400)*100;
                     printf("AVERAGE=%f\n",avg);
                     if(avg>=70)
                     printf("Grade A\n");
                     if(avg>=60&avg<70)
                     printf("Grade B\n");
                     else if(avg>=50&avg<60)
                     printf("Grade C\n");
                     else if(avg>=45&avg<50)      
                     printf("Grade D\n");
                     else if(avg>=40&avg<45)
                     printf("Grade E\n");
                     else if(avg<40)
                     printf("Fail\n");
                     if(fail>=2)
                     printf("Student is failed and cann;t promote\n");
                     else
                     continue;
                     fclose (p[i]);                    
                }
           for(k=1;k<=2;k++)
           {
           printf("Input filename"); 
           scanf("%s",&filename);
           p[k]=fopen(filename,"r");
           fprintf(stdout,"NAME= %s\tCOURSE ENTITLLED= %s\t ID NUMBER= %d\t DATE OF BIRTH= %d\tAVERAGE= %f\n",name,course_enrolled,id_number,date_of_birth,avg);
           fclose (p[k]);
           }
           getch();
}

there is a problem i cann;t save all data in a single file as well as but cann;t use array of pointers in function to save records of 10 students

Last edited by Ancient Dragon; Jul 10th, 2008 at 6:08 am. Reason: add code tags

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Join Date: Dec 2006

Posts: 251

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ssharish2005 ssharish2005 is offline

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Posting Whiz in Training

Re: help me with this code

Jul 9th, 2008

Pleaseeeeeeeeeeeeeeeeee use code tags

and intendant the code.

ssharish

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Join Date: Aug 2006

Posts: 319

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Luckychap

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Re: help me with this code

Jul 9th, 2008

 Help with Code Tags 
 c Syntax (Toggle Plain Text) 
#include<stdio.h>
#include<string.h>
float avg(float);
main()
{
FILE *p[2];
int k,students=10,subjects=4,i,j,id_number,date_of_birth,fail=0;
float marks[100],total=0,avg;
char name[30],course_enrolled[30],filename[10];
for(i=1;i<=2;i++)
{
printf("filename"); 
scanf("%s",&filename);
p[i]=fopen(filename,"w");
printf("Enter Name of Student\n",p[i]);
fscanf(stdin,"%s",&name,p[i]);
printf("Enter Course In Which Student Is Enrolled\n",p[i]); 
fscanf(stdin,"%s",&course_enrolled,p[i]);
printf("Enter ID Number Of %s Enrolled in Course %s\n",name,course_enrolled,p[i]);
fscanf(stdin,"%d",&id_number,p[i]);
printf("Enter Date Of Birth Of %s Enrolled in Course %s and\n ID-Number is %d\n",name,course_enrolled,id_number,p[i]);
fscanf(stdin,"%d",&date_of_birth,p[i]);
for(j=1;j<=4;j++)
{
printf("Enter Marks for Subject %d for Student %s\n",j,name);
fscanf(stdin,"%f",&marks[j]);
total=total+marks[j];
if(marks[j]<50)
fail=fail+1;
else
continue;
} 
avg=(total/400)*100;
printf("AVERAGE=%f\n",avg);
if(avg>=70)
printf("Grade A\n");
if(avg>=60&avg<70)
printf("Grade B\n");
else if(avg>=50&avg<60)
printf("Grade C\n");
else if(avg>=45&avg<50) 
printf("Grade D\n");
else if(avg>=40&avg<45)
printf("Grade E\n");
else if(avg<40)
printf("Fail\n");
if(fail>=2)
printf("Student is failed and cann;t promote\n");
else
continue;
fclose (p[i]); 
}
for(k=1;k<=2;k++)
{
printf("Input filename"); 
scanf("%s",&filename);
p[k]=fopen(filename,"r");
fprintf(stdout,"NAME= %s\tCOURSE ENTITLLED= %s\t ID NUMBER= %d\t DATE OF BIRTH= %d\tAVERAGE= %f\n",name,course_enrolled,id_number,date_of_birth,avg);
fclose (p[k]);
}
getch();
}
#include<stdio.h>
#include<string.h>
float avg(float);
main()
{
FILE *p[2];
int k,students=10,subjects=4,i,j,id_number,date_of_birth,fail=0;
float marks[100],total=0,avg;
char name[30],course_enrolled[30],filename[10];
for(i=1;i<=2;i++)
{
printf("filename"); 
scanf("%s",&filename);
p[i]=fopen(filename,"w");
printf("Enter Name of Student\n",p[i]);
fscanf(stdin,"%s",&name,p[i]);
printf("Enter Course In Which Student Is Enrolled\n",p[i]); 
fscanf(stdin,"%s",&course_enrolled,p[i]);
printf("Enter ID Number Of %s Enrolled in Course %s\n",name,course_enrolled,p[i]);
fscanf(stdin,"%d",&id_number,p[i]);
printf("Enter Date Of Birth Of %s Enrolled in Course %s and\n ID-Number is %d\n",name,course_enrolled,id_number,p[i]);
fscanf(stdin,"%d",&date_of_birth,p[i]);
for(j=1;j<=4;j++)
{
printf("Enter Marks for Subject %d for Student %s\n",j,name);
fscanf(stdin,"%f",&marks[j]);
total=total+marks[j];
if(marks[j]<50)
fail=fail+1;
else
continue;
} 
avg=(total/400)*100;
printf("AVERAGE=%f\n",avg);
if(avg>=70)
printf("Grade A\n");
if(avg>=60&avg<70)
printf("Grade B\n");
else if(avg>=50&avg<60)
printf("Grade C\n");
else if(avg>=45&avg<50) 
printf("Grade D\n");
else if(avg>=40&avg<45)
printf("Grade E\n");
else if(avg<40)
printf("Fail\n");
if(fail>=2)
printf("Student is failed and cann;t promote\n");
else
continue;
fclose (p[i]); 
}
for(k=1;k<=2;k++)
{
printf("Input filename"); 
scanf("%s",&filename);
p[k]=fopen(filename,"r");
fprintf(stdout,"NAME= %s\tCOURSE ENTITLLED= %s\t ID NUMBER= %d\t DATE OF BIRTH= %d\tAVERAGE= %f\n",name,course_enrolled,id_number,date_of_birth,avg);
fclose (p[k]);
}
getch();
}

At line nos. 10, 23 and 53 CHECK your for loops.

Last edited by Luckychap; Jul 9th, 2008 at 10:39 pm.

When you think you have done a lot, then be ready for YOUR downfall.

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Join Date: Jul 2008

Posts: 41

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raja289

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Re: help me with this code

Jul 10th, 2008

http://s3.supload.com/free/lastscan-...3716.jpg/view/

here u can see the program that i need. i am really tired of working on it.
1) There is some problem with average as it adds up average marks of last students with current one.

2) i cann;t save all records in a single file !

3) can anyone modify this code with according to the question ("up there on image link").

thanks guys for reply

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Join Date: Aug 2005

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Ancient Dragon Ancient Dragon is offline

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Re: help me with this code

Jul 10th, 2008

Don't double post the problem in multiple threads because it only causes confusion. I'm closing this thread so that the discussion can continue in the other thread.

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.