Tag: Code

#include <iostream.h>
#include <conio.h>
#include <stdio.h>
#include <string.h>
#include <iomanip.h>

struct date
{
int dd, mm, yy;
};

struct points
{
int sub1, sub2, sub3;
float avg;
};

struct student
{
int rno;
char name[50], stream[50];
date dob;
points marks;
} s[10], stud[10];

int average (student s[10])
{
int flag = 0;
cout<<endl<<“Displaying student data”<<endl;
for (int i=0; i<10; i++)
{
cout<<endl<<“Data for student number “<<i+1<<endl;
cout<<“Student roll number : “<<setw(50)<<s[i].rno<<endl;
cout<<“Student name : “<<setw(50)<<s[i].name<<endl;
cout<<“Student date of birth : “<<setw(50)<<s[i].dob.dd<<” “
<<s[i].dob.mm<<“ “<<s[i].dob.yy<<endl;
cout<<“Student stream : “<<setw(50)<<s[i].stream<<endl;
cout<<“Student marks in subject 1”<<setw(50)<<s[i].marks.sub1<<endl;
cout<<“Student marks in subject 2”<<setw(50)<<s[i].marks.sub2<<endl;
cout<<“Student marks in subject 3”<<setw(50)<<s[i].marks.sub3<<endl;
s[i].marks.avg = (s[i].marks.sub1 + s[i].marks.sub2 + s[i].marks.sub3)/3;
cout<<“Average marks of student in 3 subjects : “<<setw(50)
<<s[i].marks.avg<<endl;
if (s[i].marks.avg < 120)
flag++;
}
return flag;
}

void studstream (student s[10])
{
int j=1;
char find[50];
cout<<endl<<“Enter stream to be searched for : “;
gets(find);
cout<<endl<<“Displaying data for students of requested stream”<<endl;
for (int i=0; i<10; i++)
{
if (strcmp (s[i].stream, find) == 1)
{
cout<<endl<<“Data of student “<<j<<” meeting required criteria”<<endl;
cout<<“Student roll number : “<<setw(50)<<s[i].rno<<endl;
cout<<“Student name : “<<setw(50)<<s[i].name<<endl;
cout<<“Student date of birth : “<<setw(50)<<s[i].dob.dd<<“ “
<<s[i].dob.mm<<“ “<<s[i].dob.yy<<endl;
cout<<“Student stream : “<<setw(50)<<s[i].stream<<endl;
cout<<“Student marks in subject 1 : “<<setw(50)<<s[i].marks.sub1<<endl;
cout<<“Student marks in subject 2 : “<<setw(50)<<s[i]
.marks.sub2<<endl;
cout<<“Student marks in subject 3 : “<<setw(50)<<s[i].marks.sub3<<endl;
s[i].marks.avg = (s[i].marks.sub1 + s[i].marks.sub2 + s[i].marks.sub3)/3;
cout<<“Average marks of student in 3 subjects : “
<<setw(50)<<s[i].marks.avg<<endl;
j++;
}
}
}

void studdob (student s[10])
{
int j=1;
date find;
cout<<endl<<“Enter date of birth to search for in DD MM YYYY format : “;
cin>>find.dd>>find.mm>>find.yy;
cout<<endl<<“Displaying data for students of requested date of birth”<<endl;
for (int i=0; i<10; i++)
{
if ((s[i].dob.dd == find.dd) && (s[i].dob.mm == find.mm) && (s[i].dob.yy == find.yy))
{
cout<<endl<<“Data of student “<<j<<” meeting required criteria”<<endl;
cout<<“Student roll number : “<<setw(50)<<s[i].rno<<endl;
cout<<“Student name : “<<setw(50)<<s[i].name<<endl;
cout<<“Student date of birth : “<<setw(50)<<s[i].dob.dd<<“ “ <<s[i].dob.mm<<“ “<<s[i].dob.yy<<endl;
cout<<“Student stream : “<<setw(50)<<s[i].stream<<endl;
cout<<“Student marks in subject 1 : “<<setw(50)<<s[i].marks.sub1<<endl;
cout<<“Student marks in subject 2 : “<<setw(50)<<s[i].marks.sub2<<endl;
cout<<“Student marks in subject 3 :”<<setw(50)<<s[i].marks.sub3<<endl;
s[i].marks.avg = (s[i].marks.sub1 + s[i].marks.sub2 + s[i].marks.sub3)/3;
cout<<“Average marks of student in 3 subjects : “ <<setw(50)<<s[i].marks.avg<<endl;
j++;
}
}
}

void main()
{
clrscr();
cout<<“Creating database for 10 students”<<endl;
for (int i=0; i<10; i++)
{
cout<<endl<<“Enter data for student “<<i+1<<endl<<“Enter student
roll number : “;
cin>>stud[i].rno;
cout<<“Enter student name : “;
gets(stud[i].name);
cout<<“Enter student date of birth in DD MM YYYY format : “;
cin>>stud[i].dob.dd>>stud[i].dob.mm>>stud[i].dob.yy;
cout<<“Enter student stream : “;
gets(stud[i].stream);
cout<<“Enter student marks in subject 1 : “;
cin>>stud[i].marks.sub1;
cout<<“Enter student marks in subject 2 : “;
cin>>stud[i].marks.sub2;
cout<<“Enter student marks in subject 3 : “;
cin>>stud[i].marks.sub3;
}
int ch;
cout<<endl<<“Program Menu”<<endl
<<“1. Calculate average marks for each student and print student details”
<<endl<<“2. Search by stream”<<endl<<“3. Search by date of birth”
<<endl<<“Enter your choice : “;
cin>>ch;
switch (ch)
{
case 1 : int fail;
fail = average (stud);
cout<<endl<<“Number of students failed is “<<fail;
break;
case 2 : studstream (stud);
break;
case 3 : studdob (stud);
break;
default : cout<<endl<<“You entered an incorrect choice”;
}
cout<<endl;
getch();
}

#include <iostream.h>
#include <conio.h>
#include <stdio.h>
#include <string.h>

struct person
{
int id, age;
char name[50], add[100], nat[50];
} p[20], per[20];

void print (person p[20])
{
int j=1;
cout<<endl<<“Details of people allowed to vote in India”<<endl;
for (int i=0; i<20; i++)
{
if ((p[i].age >= 18) && (strcmp (p[i].nat, “Indian”) == 0))
{
cout<<endl<<“Details for person number “<<j<<” eligible to vote”<<endl<<“Person ID : “<<p[i].id<<endl<<“Person name : “;
puts(p[i].name);
cout<<“Person address : “;
puts(p[i].add);
cout<<“Person age : “<<p[i].age<<endl<<“Person nationality : “;
puts(p[i].nat);
j++;
}
}
}

int search (person p[20], int id)
{
int flag;
for (int i=0; i<20; i++)
if (p[i].id == id)
{
flag = 1;
break;
}
if (flag == 1)
return 1;
else return 0;
}

void arrange (person p[20])
{
person temp[20];
int max, pos;
for (int i=0; i<=18; i++)
{
max = p[i].id;
pos = i;
for (int j=i+1; j<20; j++)
{
if (p[i].id > max)
{
max = p[i].id;
pos = j;
}
}
temp[i] = p[i];
p[i] = p[pos];
p[pos] = temp[i];
}
cout<<endl<<“Person data in descending order of Person ID”<<endl;
for (int k=0; k<20; k++)
{
cout<<endl<<“Data for person “<<k+1<<endl<<“Person ID : “
<<p[k].id<<endl<<“Person name : “;
puts(p[k].name);
cout<<“Person address : “;
puts(p[k].add);
cout<<“Person age : “<<p[k].age<<endl<<“Person nationality : “;
puts(p[k].nat);
}
}

void main()
{
clrscr();
int ch, id, ans;
cout<<endl<<“Program to manage person data”<<endl;
for (int i=0; i<20; i++)
{
cout<<endl<<“Enter data for person “<<i+1<<endl<<“Enter person ID : “;
cin>>per[i].id;
cout<<“Enter person name : “;
gets(per[i].name);
cout<<“Enter person address : “;
gets(per[i].add);
cout<<“Enter person age : “;
cin>>per[i].age;
cout<<“Enter person nationality : “;
gets(per[i].nat);
cout<<endl;
}
cout<<endl<<“Operation Menu”<<endl
<<“1. Print record of all people allowed to
vote in India”<<endl
<<“2. Search for a record using Person ID”<<endl
<<“3. Arrange all records in descending order of ID”<<endl
<<“Enter your choice : “;
cin>>ch;
switch (ch)
{
case 1: print (per);
break;
case 2 : cout<<“Enter the person ID to be searched : “;
cin>>id;
int ans;
ans = search (per, id);
if (ans == 1)
cout<<“The ID you searched for is present”;
else cout<<“The ID you searched for is not present”;
break;
case 3: arrange (per);
break;
default : cout<<endl<<“You entered an incorrect choice”<<endl;
}
getch();
}