Task 1 a:

#include<iostream>

using namespace std;

void display_even ();

int main()

display_even();

return 0;

void display_even()

for(int i=1;i<=25;i++)

if(i%2==0)

cout<<i<<endl;

}
Task 1 b:

#include<iostream>

using namespace std;

void display_odd ();

int main()

display_odd();

return 0;

void display_odd()

for(int i=1;i<=25;i++)

if(i%2!=0)

cout<<i<<endl;

}
Task 1 c:

#include<iostream>

using namespace std;

void sum_upto (int);

int main()

int n;

cout<<"Enter the number till which sum is to be calculated "<<endl;

cin>>n;

sum_upto(n);

return 0;

void sum_upto(int x)
{

int sum=0;

for(int i=1;i<=x;i++)

sum=sum+i;

cout<<sum<<endl;

Task 1 d:

#include<iostream>

using namespace std;

void fibonacci (int);

int main()

int n;

cout<<"Enter number of terms for series should be printed "<<endl;

cin>>n;

fibonacci (n);

return 0;

}
void fibonacci (int x)

int a=0, b=1;

if(x<0)

cout<<"Invalid number of terms "<<endl;

for(int i=0;i< x;i++)

cout<< a<<endl;

int n=a+b;

a=b;

b=n;

cout<<endl;

}
Task 1 e:

#include<iostream>

using namespace std;

void calculate_avg(int,int,int ,int,int,int);

int main()

int a,b,c,d,e,f;

cout<<"Enter an integer for average "<<endl;

cin>>a;

cout<<"Enter an integer for average "<<endl;

cin>>b;

cout<<"Enter an integer for average "<<endl;

cin>>c;

cout<<"Enter an integer for average "<<endl;

cin>>d;

cout<<"Enter an integer for average "<<endl;

cin>>e;

cout<<"Enter an integer for average "<<endl;

cin>>f;

calculate_avg(a,b,c,d,e,f);

return 0;

void calculate_avg (int a,int b,int c,int d,int e, int f)

int sum=0;

sum=a+b+c+d+e+f;

float avg=sum/6;
 cout<<"Average = "<<avg<<endl;

Task 1 f:

#include<iostream>

using namespace std;

int prod_of_digit(int);

int main()

int a;

cout<<"Enter a number of your choice "<<endl;

cin >>a;

cout<<"The product of digits of number are " << prod_of_digit(a)<<endl;

int prod_of_digit(int x)

int prod=1;

for(int i=1;x!=0;i++)

int d=x%10;

x=x/10;

prod=prod*d;

return (prod);

Task 1 g:

#include<iostream>

using namespace std;

int main()

int a;

cout<<"Enter a number of your choice "<<endl;

cin >>a;

if( palindrome_check(a)==1)

cout<<"The number is palindrome " <<endl;

else

cout<<"the number is not a palindrome "<<endl;

return 0;

bool palindrome_check(int x)

int number=x,reverse=0;

while(x>0)

int d=x%10;

reverse=reverse*10+d;

x=x/10;

if(reverse==number)

return (1);

else

return (0);

}
Task 1 h:

#include<iostream>

#include<windows.h>

#include<conio.h>

using namespace std;

void atm_manue (void);

int main()

atm_manue();

return 0;

void atm_manue(void)

int a;

cout<<"Press 1 - Balance Inquiry"<<endl;

cout<<"Press 2 - Cash Withdrawal"<<endl;

cout<<"Press 4 - Transfer Funds"<<endl;

cout<<"Press 5 - Change Password"<<endl;

cout<<"Press 6 - Exit"<<endl;

cin>>a;

system("CLS");

switch (a)

case 1:

cout<<"YOU ARE ON BALANCE INQUIRY PAGE "<<endl<<endl<<endl;

cout<<"Enter any key to go back "<<endl;

getch ();

system("CLS");

atm_manue();

break;

case 2:

cout<<"YOU ARE ON CASH WITHDRAWAL PAGE "<<endl<<endl<<endl;

cout<<"Enter any key to go back "<<endl;

getch ();

system("CLS");

atm_manue();

break;

case 3:

cout<<"YOU ARE ON CASH DEPOSIT PAGE "<<endl<<endl<<endl;

cout<<"Enter any key to go back "<<endl;

getch ();

system("CLS");

atm_manue();

break;
 case 4:

cout<<"YOU ARE ON TRANSFER FUND PAGE "<<endl<<endl<<endl;

cout<<"Enter any key to go back "<<endl;

getch ();

system("CLS");

atm_manue();

break;

case 5:

cout<<"YOU ARE ON PASSWARD RESET PAGE "<<endl<<endl<<endl;

cout<<"Enter any key to go back "<<endl;

getch ();

system("CLS");

atm_manue();

break;

case 6:

cout<<"Thank you "<<endl;

exit(0);

break;

default :

cout<<"Enter from 1 to 6 ";