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Reslt Managment Project Coding

////////////////Created By C++ PRogramming////////////////////////


#include<conio.h>
#include<process.h>
#include<fstream.h>
#include<string.h>
#include<stdio.h>
#include<dos.h>

// CLASS NAMED 'STUDENT' TO CALCULATE GRADE,TOTAL AND PERCANTAGE //
class student
{
private:

public:
char grade(long int x,int y);
long int total(int a,int b,int c,int d,int e);
float percent(long int z);
};
char student::grade(long int x,int y)
{ // FUNCTION TO CALCULATE GRADE //
if((x*100/y)>74)
return('A');
else
{
if((x*100/y)>60)
return('B');
else
{
if((x*100/y)>33)
return('C');
else
return('E');
}
}
}

long int student::total(int a,int b,int c,int d,int e)
{ // FUNCTION TO CALCULATE TOTAL MARKS //
int t;
t=(a+b+c+d+e);
return (t);
}

float student::percent(long int z)
{ // FUNCTION TO CALCULATE PERCANTAGE //
float p=0;
p=(z*100)/500;
return(p);
}



// STRUCTURE TO INPUT DETAILS OF STUDENT //
struct studres
{

int clas;
char s;
int rollno;
char name[30];
char fatername[30];
char teachname[30];
int engmark;
int matmark;
int phymark;
int chemark;
int commark;
int total;
float percentage;

}stdres;

struct temp
{
int roll;
char name[30];
int clas;
char sec;
int total;

}temp;

// ALL THE FUNCTIONS INITIALIZED //
void create();
void add();
void search();
void modify();
void merit();
void merit1();
void delet();
char grade(long int x,int y);
long int total(int a,int b,int c,int d,int e);
float percent(long int z);
int checking(int z, char y, int x);
void menu();

void main()
{ // MAIN PROGRAM STARTS HERE //
clrscr();
gotoxy(20,6);
cout<<" R E S U L T M A N A G E M E N T";

gotoxy(13,10);
cout<<" By C++ Programmings ";

getch();
clrscr();
menu(); // CALLING FUNCTION TO PRINT MENU //

}

void create()

{ // FUNCTION TO CREATE THE MAIN FILE //
clrscr();
char ans;
fstream result;
gotoxy(20,6);
cout<<"WARNING !!! ALL PREVIOUS RECORDS WILL BE DELETED";
gotoxy(10,10);
cout<<" DO YOU STILL WANT TO CONTINUE(Y/N):";
cin>>ans;
if(ans != 'N' || ans != 'n')
{
result.open("result.dat",ios::out|ios::binary);
result.close();
}
menu();
}

void add()

{ // FUNCTION TO ADD DETAILS OF THE STUDENT //
top:
clrscr();
int max1=100,max2=70,kar,l,m;
char ch,n;
cout<<"CLASS:";
gotoxy (16,1);
cout<<"SECTION:";
gotoxy(31,1);
cout<<"ROLL NO:";
gotoxy(47,1);
cout<<"STUDENT'S NAME:";
gotoxy(1,5);
cout<<"FATHER NAME:";
gotoxy(45,5);
cout<<"CLASS TEACHER:";
gotoxy(1,9);
cout<<"S.NO.";
gotoxy(15,9);
cout<<"SUBJECT";
gotoxy(30,9);
cout<<"MARKS";
gotoxy(40,9);
cout<<"MAXIMUM MARKS";
gotoxy(70,9);
cout<<"GRADE";
gotoxy(3,11);
cout<<"1";
gotoxy(15,11);
cout<<"ENGLISH";
gotoxy(3,13);
cout<<"2";
gotoxy(15,13);
cout<<"MATHS";
gotoxy(3,15);
cout<<"3";
gotoxy(15,15);
cout<<"PHYSICS";
gotoxy(3,17);
cout<<"4";
gotoxy(15,17);
cout<<"CHEMISTRY";
gotoxy(3,19);
cout<<"5";
gotoxy(15,19);
cout<<"COMPUTER";
gotoxy(3,25);
cout<<"6";
gotoxy(15,25);
cout<<"TOTAL";
gotoxy(3,27);
cout<<"7";
gotoxy(15,27);
cout<<"PERCENTAGE";
// getting student information //
gotoxy(8,1);
cin>>m;
gotoxy(25,1);
n=getchar();
fflush(stdin);

fstream result;
result.open("result.dat",ios::app|ios::binary);
gotoxy(40,1);
cin>>l;
kar=checking(m,n,l);
if(kar==1)
{
result.close();
goto top;
}
else
{
stdres.clas=m;
stdres.s=n;
stdres.rollno=l;
}

gotoxy(63,1);
gets(stdres.name);
fflush(stdin);

gotoxy(14,5);
gets(stdres.fatername);
fflush(stdin);
gotoxy(60,5);
gets(stdres.teachname);

gotoxy(47,11); /*marks table*/
cout<<"100";
gotoxy(32,11);
cin>>stdres.engmark;
gotoxy(72,11);
cout<<grade(stdres.engmark,max1);

gotoxy(47,13);
cout<<"100";
gotoxy(32,13);
cin>>stdres.matmark;
gotoxy(72,13);
cout<<grade(stdres.matmark,max1);

gotoxy(47,15);
cout<<" 70";
gotoxy(32,15);
cin>>stdres.phymark;
gotoxy(72,15);
cout<<grade(stdres.phymark,max2);

gotoxy(47,17);
cout<<" 70";
gotoxy(32,17);
cin>>stdres.chemark;
gotoxy(72,17);
cout<<grade(stdres.chemark,max2);

gotoxy(47,19);
cout<<" 70";
gotoxy(32,19);
cin>>stdres.commark;
gotoxy(72,19);
cout<<grade(stdres.commark,max2);

gotoxy(47,25);
cout<<"410";
gotoxy(31,25);

cout<<total(stdres.engmark,stdres.matmark,stdres.phymark,stdres.chemark,stdres.commark);

stdres.total=total(stdres.engmark,stdres.matmark,stdres.phymark,stdres.chemark,stdres.commark);

gotoxy(32,27);
stdres.percentage=percent(stdres.total);
cout<<stdres.percentage;
gotoxy(80,50);


result.write((char*)&stdres,sizeof(stdres));
result.close();
getch();
menu();
}

char grade(long int x,int y)
{ // FUNCTION THAT CALCULATES GRADE OF THE STUDENT //
if((x*100/y)>74)
return('A');
else
{
if((x*100/y)>60)
return('B');
else
{
if((x*100/y)>33)
return('C');
else
return('E');
}
}
}

long int total(int a,int b,int c,int d,int e)
{ // FUNCTION TO CALCULATE TOTAL OF STUDENT //
int t;
t=(a+b+c+d+e);
return (t);
}

float percent(long int z)
{
float p=0;
p=(z*100)/410;
return(p);
}

int checking(int z, char y, int x)
{ // FUNCTION TO CALCULATE WETHER STUDENT EXISTS //
int suansh=0;
fstream result;
result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.clas==z&&stdres.s==y&&stdres.rollno==x)
{
clrscr();
gotoxy(22,25);
cout<<"ENTRY ALREADY EXISTS";
getch();
suansh=1;
break;
}
result.read((char*)&stdres, sizeof(stdres));
}
return(suansh);
}


void menu()
// FUNCTION THAT PRINTS THE MAIN MENU //
{
clrscr();
int ans;
gotoxy(25,10);
cout<<"M A I N M E N U";
gotoxy(17,15);
cout<<"1. Create the Primary Result Register";
gotoxy(17,16);
cout<<"2. Add Result";
gotoxy(17,17);
cout<<"3. Modify Result";
gotoxy(17,18);
cout<<"4. Search Result";
gotoxy(17,19);
cout<<"5. Delete Result";
gotoxy(17,20);
cout<<"6. Generate Merit List Grade wise per subject";
gotoxy(17,21);
cout<<"7. Generate Merit List on basis of Total Marks";
gotoxy(17,22);
cout<<"8. Exit";

gotoxy(40,25);
cout<<"Enter Option(1-8):";
cin>>ans;
// SWITCH USED TO MAKE PROGRAM MENU BASED //
switch(ans)
{
case 1:create();
break;
case 2: add();
break;
case 3: modify();
break;
case 4: search();
break;
case 5: delet();
break;
case 6: merit();
break;
case 7: merit1();
break;
case 8: exit(0);
}


}

void search()

{ // FUNCTION TO SEARCH A STUDENT //
{
clrscr();
int max1=100,max2=70,roll,flag=0;
char ch;
gotoxy(23,15);
cout<<"Enter the Roll No. of the student: ";
cin>>roll;
fstream result;
result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.rollno==roll)
{
flag=1;
clrscr();
gotoxy(23,25);
cout<<"RECORD FOUND";
gotoxy(23,27);
cout<<"PRESS ANY KEY TO CONTINUE ...";
getch();


clrscr();
cout<<"CLASS:";
gotoxy (16,1);
cout<<"SECTION:";
gotoxy(31,1);
cout<<"ROLL NO:";
gotoxy(47,1);
cout<<"STUDENT'S NAME:";
gotoxy(1,5);
cout<<"FATHER NAME:";
gotoxy(45,5);
cout<<"CLASS TEACHER:";
gotoxy(1,9);
cout<<"S.NO.";
gotoxy(15,9);
cout<<"SUBJECT";
gotoxy(30,9);
cout<<"MARKS";
gotoxy(40,9);
cout<<"MAXIMUM MARKS";
gotoxy(70,9);
cout<<"GRADE";
gotoxy(3,11);
cout<<"1";
gotoxy(15,11);
cout<<"ENGLISH";
gotoxy(3,13);
cout<<"2";
gotoxy(15,13);
cout<<"MATHS";
gotoxy(3,15);
cout<<"3";
gotoxy(15,15);
cout<<"PHYSICS";
gotoxy(3,17);
cout<<"4";
gotoxy(15,17);
cout<<"CHEMISTRY";
gotoxy(3,19);
cout<<"5";
gotoxy(15,19);
cout<<"COMPUTER";
gotoxy(3,25);
cout<<"6";
gotoxy(15,25);
cout<<"TOTAL";
gotoxy(3,27);
cout<<"7";
gotoxy(15,27);
cout<<"PERCENTAGE";
gotoxy(8,1);
cout<<stdres.clas; /*printing student information*/
gotoxy(25,1);
cout<<stdres.s;
gotoxy(40,1);
cout<<stdres.rollno;
gotoxy(63,1);
puts(stdres.name);
fflush(stdout);
gotoxy(14,5);
puts(stdres.fatername);
fflush(stdout);
gotoxy(60,5);
puts(stdres.teachname);

gotoxy(47,11); /*marks table*/
cout<<"100";
gotoxy(32,11);
cout<<stdres.engmark;
gotoxy(72,11);
cout<<grade(stdres.engmark,max1);

gotoxy(47,13);
cout<<"100";
gotoxy(32,13);
cout<<stdres.matmark;
gotoxy(72,13);
cout<<grade(stdres.matmark,max1);

gotoxy(47,15);
cout<<" 70";
gotoxy(32,15);
cout<<stdres.phymark;
gotoxy(72,15);
cout<<grade(stdres.phymark,max2);

gotoxy(47,17);
cout<<" 70";
gotoxy(32,17);
cout<<stdres.chemark;
gotoxy(72,17);
cout<<grade(stdres.chemark,max2);

gotoxy(47,19);
cout<<" 70";
gotoxy(32,19);
cout<<stdres.commark;
gotoxy(72,19);
cout<<grade(stdres.commark,max2);

gotoxy(47,25);
cout<<"410";
gotoxy(31,25);

cout<<total(stdres.engmark,stdres.matmark,stdres.phymark,stdres.chemark,stdres.commark);

stdres.total=total(stdres.engmark,stdres.matmark,stdres.phymark,stdres.chemark,stdres.commark);

gotoxy(32,27);
stdres.percentage=percent(stdres.total);
cout<<stdres.percentage;
gotoxy(80,50);

result.close();
getch();
menu();


}
else
result.read((char*)&stdres,sizeof(stdres));


}

if(flag==0)
{

clrscr();
gotoxy(23,23);
cout<<"SORRY! The Roll No."<<roll<<" does not exist.";
gotoxy(23,25);
cout<<" PLEASE! TRY AGAIN.";
result.close();
getch();
menu();
}
}
}

void modify()

{ // FUNCTION TO MODIFY STUDENT'S DATA //
clrscr();
int max1=100,max2=70,roll,flag=0,flag2=0;
char ch,z,n;
gotoxy(23,15);
cout<<"Enter the Roll No. of the student: ";
cin>>roll;
fstream result,tfile;
result.open("result.dat",ios::in|ios::binary);
tfile.open("tfile.dat",ios::out|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.rollno==roll)
{
flag=1;
clrscr();
gotoxy(23,25);
cout<<"RECORD FOUND";
gotoxy(23,27);
cout<<"PRESS ANY KEY TO CONTINUE ...";
getch();


clrscr();
cout<<"CLASS:";
gotoxy (16,1);
cout<<"SECTION:";
gotoxy(31,1);
cout<<"ROLL NO:";
gotoxy(47,1);
cout<<"STUDENT'S NAME:";
gotoxy(1,5);
cout<<"FATHER NAME:";
gotoxy(45,5);
cout<<"CLASS TEACHER:";
gotoxy(1,9);
cout<<"S.NO.";
gotoxy(15,9);
cout<<"SUBJECT";
gotoxy(30,9);
cout<<"MARKS";
gotoxy(40,9);
cout<<"MAXIMUM MARKS";
gotoxy(70,9);
cout<<"GRADE";
gotoxy(3,11);
cout<<"1";
gotoxy(15,11);
cout<<"ENGLISH";
gotoxy(3,13);
cout<<"2";
gotoxy(15,13);
cout<<"MATHS";
gotoxy(3,15);
cout<<"3";
gotoxy(15,15);
cout<<"PHYSICS";
gotoxy(3,17);
cout<<"4";
gotoxy(15,17);
cout<<"CHEMISTRY";
gotoxy(3,19);
cout<<"5";
gotoxy(15,19);
cout<<"COMPUTER";
gotoxy(3,25);
cout<<"6";
gotoxy(15,25);
cout<<"TOTAL";
gotoxy(3,27);
cout<<"7";
gotoxy(15,27);
cout<<"PERCENTAGE";

gotoxy(8,1);
cout<<stdres.clas; /*printing student information*/
gotoxy(25,1);
cout<<stdres.s;
gotoxy(40,1);
cout<<stdres.rollno;
gotoxy(63,1);
puts(stdres.name);
fflush(stdout);
gotoxy(14,5);
puts(stdres.fatername);
fflush(stdout);
gotoxy(60,5);
puts(stdres.teachname);

gotoxy(47,11); /*marks table*/
cout<<"100";
gotoxy(32,11);
cout<<stdres.engmark;
gotoxy(72,11);
cout<<grade(stdres.engmark,max1);

gotoxy(47,13);
cout<<"100";
gotoxy(32,13);
cout<<stdres.matmark;
gotoxy(72,13);
cout<<grade(stdres.matmark,max1);

gotoxy(47,15);
cout<<" 70";
gotoxy(32,15);
cout<<stdres.phymark;
gotoxy(72,15);
cout<<grade(stdres.phymark,max2);

gotoxy(47,17);
cout<<" 70";
gotoxy(32,17);
cout<<stdres.chemark;
gotoxy(72,17);
cout<<grade(stdres.chemark,max2);

gotoxy(47,19);
cout<<" 70";
gotoxy(32,19);
cout<<stdres.commark;
gotoxy(72,19);
cout<<grade(stdres.commark,max2);

gotoxy(47,25);
cout<<"410";
gotoxy(31,25);

cout<<total(stdres.engmark,stdres.matmark,stdres.phymark,stdres.chemark,stdres.commark);

stdres.total=total(stdres.engmark,stdres.matmark,stdres.phymark,stdres.chemark,stdres.commark);

gotoxy(32,27);
stdres.percentage=percent(stdres.total);
cout<<stdres.percentage;



getch();

gotoxy(32,40);
cout<<"WOULD YOU LIKE TO MAKE ANY CHANGES";
cout<<"IF YES .. PRESS 'A' ";
z=getch();
if(z=='a'||z=='A')
{
flag2=1;
clrscr(); /*again printing format for modification*/
cout<<"CLASS:";
gotoxy (16,1);
cout<<"SECTION:";
gotoxy(31,1);
cout<<"ROLL NO:";
gotoxy(47,1);
cout<<"STUDENT'S NAME:";
gotoxy(1,5);
cout<<"FATHER NAME:";
gotoxy(45,5);
cout<<"CLASS TEACHER:";
gotoxy(1,9);
cout<<"S.NO.";
gotoxy(15,9);
cout<<"SUBJECT";
gotoxy(30,9);
cout<<"MARKS";
gotoxy(40,9);
cout<<"MAXIMUM MARKS";
gotoxy(70,9);
cout<<"GRADE";
gotoxy(3,11);
cout<<"1";
gotoxy(15,11);
cout<<"ENGLISH";
gotoxy(3,13);
cout<<"2";
gotoxy(15,13);
cout<<"MATHS";
gotoxy(3,15);
cout<<"3";
gotoxy(15,15);
cout<<"PHYSICS";
gotoxy(3,17);
cout<<"4";
gotoxy(15,17);
cout<<"CHEMISTRY";
gotoxy(3,19);
cout<<"5";
gotoxy(15,19);
cout<<"COMPUTER";
gotoxy(3,25);
cout<<"6";
gotoxy(15,25);
cout<<"TOTAL";
gotoxy(3,27);
cout<<"7";
gotoxy(15,27);
cout<<"PERCENTAGE";


gotoxy(8,1);
cout<<stdres.clas; /*printing student information*/
gotoxy(25,1);
cout<<stdres.s;
gotoxy(40,1);
cout<<stdres.rollno;
gotoxy(63,1);



gotoxy(63,1);
gets(stdres.name);
fflush(stdin);

gotoxy(14,5);
gets(stdres.fatername);
fflush(stdin);
gotoxy(60,5);
gets(stdres.teachname);

gotoxy(47,11); /*marks table*/
cout<<"100";
gotoxy(32,11);
cin>>stdres.engmark;
gotoxy(72,11);
cout<<grade(stdres.engmark,max1);

gotoxy(47,13);
cout<<"100";
gotoxy(32,13);
cin>>stdres.matmark;
gotoxy(72,13);
cout<<grade(stdres.matmark,max1);

gotoxy(47,15);
cout<<" 70";
gotoxy(32,15);
cin>>stdres.phymark;
gotoxy(72,15);
cout<<grade(stdres.phymark,max2);

gotoxy(47,17);
cout<<" 70";
gotoxy(32,17);
cin>>stdres.chemark;
gotoxy(72,17);
cout<<grade(stdres.chemark,max2);

gotoxy(47,19);
cout<<" 70";
gotoxy(32,19);
cin>>stdres.commark;
gotoxy(72,19);
cout<<grade(stdres.commark,max2);

gotoxy(47,25);
cout<<"410";
gotoxy(31,25);

cout<<total(stdres.engmark,stdres.matmark,stdres.phymark,stdres.chemark,stdres.commark);

stdres.total=total(stdres.engmark,stdres.matmark,stdres.phymark,stdres.chemark,stdres.commark);

gotoxy(32,27);
stdres.percentage=percent(stdres.total);
cout<<stdres.percentage;
gotoxy(80,50);


tfile.write((char*)&stdres,sizeof(stdres));
result.read((char*)&stdres,sizeof(stdres));

getch();
}
else
{
tfile.write((char*)&stdres,sizeof(stdres));
result.read((char*)&stdres,sizeof(stdres));
}


}
else
{
tfile.write((char*)&stdres,sizeof(stdres));

result.read((char*)&stdres,sizeof(stdres));
}

}
result.close();
tfile.close();

if(flag2==1)
{
result.open("result.dat",ios::out|ios::binary);
tfile.open("tfile.dat",ios::in|ios::binary);
tfile.read((char*)&stdres,sizeof(stdres));
while(tfile)
{
result.write((char*)&stdres,sizeof(stdres));
tfile.read((char*)&stdres,sizeof(stdres));
}
result.close();
tfile.close();



}

if(flag==0)
{

clrscr();
gotoxy(23,23);
cout<<"SORRY! The Roll No."<<roll<<" does not exist.";
gotoxy(23,25);
cout<<" PLEASE! TRY AGAIN.";
result.close();
getch();

}


menu();
}



void merit1()


{ // FUNCTION TO GENERATE MERIT LIST //
clrscr();
int larg,l,flag=0;
gotoxy(15,17);
cout<<"Press any key for the merit list";
gotoxy(80,50);
getch();
clrscr();
gotoxy(15,17);
cout<<"PLEASE wait while the list is being generated...";
gotoxy(80,50);
delay(2000);
clrscr();
gotoxy(15,15);
cout<<"LIST generated.";
gotoxy(15,17);
cout<<"press any key to continue...";
gotoxy(80,50);
getch();
clrscr();
fstream result,tfile;
result.open("result.dat",ios::in|ios::binary);
tfile.open("tfile.dat",ios::out|ios::binary);


result.read((char*)&stdres,sizeof(stdres));
while(result)
{

l=total(stdres.engmark,stdres.matmark,stdres.phymark,stdres.chemark,stdres.commark);
if(l>368)
{
temp.roll=stdres.rollno;
strcpy(temp.name,stdres.name);
temp.clas=stdres.clas;
temp.sec=stdres.s;
temp.total=l;
tfile.write((char*)&temp,sizeof(temp));
}
result.read((char*)&stdres,sizeof(stdres));


}


result.close();
tfile.close();
gotoxy(12,1);
cout<<"ROLL NO.";
gotoxy(22,1);
cout<<"NAME";
gotoxy(38,1);
cout<<"TOTAL";

int k=3;
for(int i=410;i>368;i--)
{

tfile.open("tfile.dat",ios::in|ios::binary);
tfile.read((char*)&temp,sizeof(temp));
while(tfile)
{
if(temp.total==i)
{
flag=1;
gotoxy(15,k);
cout<<temp.roll;
gotoxy(22,k);
cout<<temp.name;
gotoxy(39,k++);
cout<<temp.total;
k++;

}
tfile.read((char*)&temp,sizeof(temp));

}
tfile.close();
}


if(flag==0)
{
clrscr();
gotoxy(15,20);
cout<<"SORRY! No record found.";
}
gotoxy(80,50);
getch();
menu();

}

void merit()
{
// FUNCTION TO GENERATE SECOND MERIT LIST //
reverse:
clrscr();
int n,c,k=3,flag=0,i;
gotoxy(15,2);
cout<<"MENU";
gotoxy(15,4);
cout<<"1. ENGLISH";
gotoxy(15,5);
cout<<"2. MATHEMATICS";
gotoxy(15,6);
cout<<"3. PHYSICS";
gotoxy(15,7);
cout<<"4. CHEMISTRY";
gotoxy(15,8);
cout<<"5. COMPUTER";
gotoxy(15,18);
cout<<"Enter your option: ";
cin>>n;
clrscr();

fstream result;
switch(n)
{

/*english*/

case 1: back1:
gotoxy(15,2);
cout<<"1. Students with Grade 'A'";
gotoxy(15,3);
cout<<"2. Students with Grade 'B'";
gotoxy(15,4);
cout<<"3. Students with Grade 'C'";
gotoxy(15,5);
cout<<"4. Students with Grade 'E' ";
gotoxy(15,7);
cout<<"Enter your Option: ";
cin>>c;
clrscr();
gotoxy(14,1);
cout<<"Roll no.";
gotoxy(25,1);
cout<<"Name";
gotoxy(37,1);
cout<<"Class";
gotoxy(45,1);
cout<<"Section";
gotoxy(60,1);
cout<<"<Marks";
switch(c)
{
case 1: for(i=100;i>74;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.engmark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.engmark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
gotoxy(80,50);

}
if(flag==0)
{
gotoxy(20,22); gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}

getch();

break;

case 2: for(i=74;i>60;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.engmark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.engmark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{

gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}
getch();
break;

case 3: for(i=60;i>33;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.engmark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.engmark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
case 4: for( i=33;i>0;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.engmark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.engmark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
default:clrscr();
gotoxy(25,25);
cout<<"Invalid Option.";
getch();
goto back1;
}

menu();


/*mathematics*/
case 2: back2:
gotoxy(15,2);
cout<<"1. Students with Grade 'A'";
gotoxy(15,3);
cout<<"2. Students with Grade 'B'";
gotoxy(15,4);
cout<<"3. Students with Grade 'C'";
gotoxy(15,5);
cout<<"4. Students with Grade 'E' ";
gotoxy(15,7);
cout<<"Enter your Option: ";
cin>>c;
clrscr();
gotoxy(14,1);
cout<<"Roll no.";
gotoxy(25,1);
cout<<"Name";
gotoxy(37,1);
cout<<"Class";
gotoxy(45,1);
cout<<"Section";
gotoxy(60,1);
cout<<"Marks";
switch(c)
{
case 1: for(i=100;i>74;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.matmark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.matmark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
gotoxy(80,50);

}
if(flag==0)
{
gotoxy(20,22); gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}

getch();

break;

case 2: for(i=74;i>60;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.matmark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.matmark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{

gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}
getch();
break;

case 3: for(i=60;i>33;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.matmark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.matmark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
case 4: for( i=33;i>0;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.matmark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.matmark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
default:clrscr();
gotoxy(25,25);
cout<<"Invalid Option.";
getch();
goto back2;
}

menu();

/*physics*/

case 3: back3:
gotoxy(15,2);
cout<<"1. Students with Grade 'A'";
gotoxy(15,3);
cout<<"2. Students with Grade 'B'";
gotoxy(15,4);
cout<<"3. Students with Grade 'C'";
gotoxy(15,5);
cout<<"4. Students with Grade 'E' ";
gotoxy(15,7);
cout<<"Enter your Option: ";
cin>>c;
clrscr();
gotoxy(14,1);
cout<<"Roll no.";
gotoxy(25,1);
cout<<"Name";
gotoxy(37,1);
cout<<"Class";
gotoxy(45,1);
cout<<"Section";
gotoxy(60,1);
cout<<"Marks";
switch(c)
{
case 1: for(i=100;i>74;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.phymark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.phymark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
gotoxy(80,50);

}
if(flag==0)
{
gotoxy(20,22); gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}

getch();

break;

case 2: for(i=74;i>60;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.phymark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.phymark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{

gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}
getch();
break;

case 3: for(i=60;i>33;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.phymark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.phymark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
case 4: for( i=33;i>0;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.phymark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.phymark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
default:clrscr();
gotoxy(25,25);
cout<<"Invalid Option.";
getch();
goto back3;
}

menu();


/*chemistry*/
case 4: back4:
gotoxy(15,2);
cout<<"1. Students with Grade 'A'";
gotoxy(15,3);
cout<<"2. Students with Grade 'B'";
gotoxy(15,4);
cout<<"3. Students with Grade 'C'";
gotoxy(15,5);
cout<<"4. Students with Grade 'E' ";
gotoxy(15,7);
cout<<"Enter your Option: ";
cin>>c;
clrscr();
gotoxy(14,1);
cout<<"Roll no.";
gotoxy(25,1);
cout<<"Name";
gotoxy(37,1);
cout<<"Class";
gotoxy(45,1);
cout<<"Section";
gotoxy(60,1);
cout<<"Marks";
switch(c)
{
case 1: for(i=100;i>74;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.chemark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.chemark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
gotoxy(80,50);

}
if(flag==0)
{
gotoxy(20,22); gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}

getch();

break;

case 2: for(i=74;i>60;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.chemark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.chemark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{

gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}
getch();
break;

case 3: for(i=60;i>33;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.chemark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.chemark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
case 4: for( i=33;i>0;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.chemark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.chemark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
default:clrscr();
gotoxy(25,25);
cout<<"Invalid Option.";
getch();
goto back4;
}

menu();

/*computer*/

case 5: back5:
gotoxy(15,2);
cout<<"1. Students with Grade 'A'";
gotoxy(15,3);
cout<<"2. Students with Grade 'B'";
gotoxy(15,4);
cout<<"3. Students with Grade 'C'";
gotoxy(15,5);
cout<<"4. Students with Grade 'E' ";
gotoxy(15,7);
cout<<"Enter your Option: ";
cin>>c;
clrscr();
gotoxy(14,1);
cout<<"Roll no.";
gotoxy(25,1);
cout<<"Name";
gotoxy(37,1);
cout<<"Class";
gotoxy(45,1);
cout<<"Section";
gotoxy(60,1);
cout<<"Marks";
switch(c)
{
case 1: for(i=100;i>74;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.commark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.commark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
gotoxy(80,50);

}
if(flag==0)
{
gotoxy(20,22); gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}

getch();

break;

case 2: for(i=74;i>60;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.commark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.commark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);

if(flag==0)
{

gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);

}
getch();
break;

case 3: for(i=60;i>33;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.commark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.commark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
case 4: for( i=33;i>0;i--)
{

result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.commark==i)
{
flag=1;
gotoxy (17,k);
cout<<stdres.rollno;
gotoxy(25,k);
cout<<stdres.name;
gotoxy(39,k);
cout<<stdres.clas;
gotoxy(47,k);
cout<<stdres.s;
gotoxy(62,k++);
cout<<stdres.commark;
k++;

}
result.read((char*)&stdres,sizeof(stdres));

}
result.close();
}
gotoxy(80,50);
if(flag==0)
{
gotoxy(20,22);
cout<<"NO RECORD FOUND.";
gotoxy(80,50);
}
getch();
break;
default:clrscr();
gotoxy(25,25);
cout<<"Invalid Option.";
getch();
goto back5;
}

menu();


default: clrscr();
cout<<"INVALID OPTION";
getch();
menu();

}





gotoxy(80,50);


}

void delet()


{ // FUNCTION TO DELETE A RESULT ENTRY //
clrscr();
student stud;
int r,s,flag=0;
char t,z;
cout<<"Enter the class: ";
cin>>s;
cout<<"Enter the section: ";
cin>>t;
cout<<"Enter the roll no.";
cin>>r;
fstream result,tfile;

result.open("result.dat",ios::in|ios::binary);
tfile.open("tfile.dat",ios::out|ios::binary);
result.read((char*)&stdres,sizeof(stdres));
while(result)
{
if(stdres.clas==s&&stdres.s==t&&stdres.rollno==r)
{
clrscr();
flag=1;
gotoxy(20,20);
cout<<"RECORD FOUND AND DELETED.";
getch();
}
else
tfile.write((char*)&stdres,sizeof(stdres));
result.read((char*)&stdres,sizeof(stdres));
}
result.close();
tfile.close();

if(flag==0)
{
clrscr();
gotoxy(25,22);
cout<<"RECORD NOT FOUND.";
getch();
exit(0);
}


result.open("result.dat",ios::out|ios::binary);
tfile.open("tfile.dat",ios::in|ios::binary);
tfile.read((char*)&stdres,sizeof(stdres));
while(tfile)
{
result.write((char*)&stdres,sizeof(stdres));
tfile.read((char*)&stdres,sizeof(stdres));
}
result.close();
tfile.close();

/*DISPLAYING THE RECORDS AFTER DELETION*/

clrscr();
cout<<"New File after Deletion of Record";
getch();




result.open("result.dat",ios::in|ios::binary);
result.read((char*)&stdres,sizeof(stdres));


while(result)
{
clrscr();
int max1=100,max2=70;
char ch;
cout<<"CLASS:";
gotoxy (16,1);
cout<<"SECTION:";
gotoxy(31,1);
cout<<"ROLL NO:";
gotoxy(47,1);
cout<<"STUDENT'S NAME:";
gotoxy(1,5);
cout<<"FATHER NAME:";
gotoxy(45,5);
cout<<"CLASS TEACHER:";
gotoxy(1,9);
cout<<"S.NO.";
gotoxy(15,9);
cout<<"SUBJECT";
gotoxy(30,9);
cout<<"MARKS";
gotoxy(40,9);
cout<<"MAXIMUM MARKS";
gotoxy(70,9);
cout<<"GRADE";
gotoxy(3,11);
cout<<"1";
gotoxy(15,11);
cout<<"ENGLISH";
gotoxy(3,13);
cout<<"2";
gotoxy(15,13);
cout<<"MATHS";
gotoxy(3,15);
cout<<"3";
gotoxy(15,15);
cout<<"PHYSICS";
gotoxy(3,17);
cout<<"4";
gotoxy(15,17);
cout<<"CHEMISTRY";
gotoxy(3,19);
cout<<"5";
gotoxy(15,19);
cout<<"COMPUTER";
gotoxy(3,25);
cout<<"6";
gotoxy(15,25);
cout<<"TOTAL";
gotoxy(3,27);
cout<<"7";
gotoxy(15,27);
cout<<"PERCENTAGE";
gotoxy(8,1);
cout<<stdres.clas; /*printing student information*/
gotoxy(25,1);
cout<<stdres.s;
gotoxy(40,1);
cout<<stdres.rollno;
gotoxy(63,1);
puts(stdres.name);
fflush(stdout);
gotoxy(14,5);
puts(stdres.fatername);
fflush(stdout);
gotoxy(60,5);
puts(stdres.teachname);

gotoxy(47,11); /*marks table*/
cout<<"100";
gotoxy(32,11);
cout<<stdres.engmark;
gotoxy(72,11);
cout<<stud.grade(stdres.engmark,max1);

gotoxy(47,13);
cout<<"100";
gotoxy(32,13);
cout<<stdres.matmark;
gotoxy(72,13);
cout<<stud.grade(stdres.matmark,max1);

gotoxy(47,15);
cout<<" 70";
gotoxy(32,15);
cout<<stdres.phymark;
gotoxy(72,15);
cout<<stud.grade(stdres.phymark,max2);

gotoxy(47,17);
cout<<" 70";
gotoxy(32,17);
cout<<stdres.chemark;
gotoxy(72,17);
cout<<stud.grade(stdres.chemark,max2);

gotoxy(47,19);
cout<<" 70";
gotoxy(32,19);
cout<<stdres.commark;
gotoxy(72,19);
cout<<stud.grade(stdres.commark,max2);


gotoxy(47,25);
cout<<"410";
gotoxy(31,25);

cout<< stud.total(stdres.engmark, stdres.matmark, stdres.phymark, stdres.chemark,stdres.commark);

stdres.total = stud.total(stdres.engmark,stdres.matmark, stdres.phymark, stdres.chemark, stdres.commark);

gotoxy(32,27);
stdres.percentage=stud.percent(stdres.total);
cout<<stdres.percentage;
gotoxy(80,50);
result.read((char*)&stdres,sizeof(stdres));
getch();

}

result.close();
menu();

}
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