A set of simple programs written by C + + programming language

1-multiplier (using the idea of ​​recursion):

#include <iostream.h>

#include <conio.h>

int fact (int);

void main ()

{

int y;

cout << "Enter number: ";

cin >> y;

cout << "fact= " << fact(y);

getch();

}

int fact (int y)

{

if (y>1)

y = y * fact(y-1);

else

y=1;

return y;

}

2 - multiplier (without recursion):

#include <iostream.h>

#include <conio.h>

void main ()

{

int c,n,f=1;

cout << "Enter number: ";

cin >> n;

if (n>0)

{for (c=1; c<=n; c++)

f=f*c;

cout << "fact= " << f;}

else if (n == 0)

cout << "factorial=1";

else

cout << "the number < 0 !! try again";

getch();

}

3 - multiplication table for any number we choose:

#include <iostream.h>

#include <conio.h>

void main ()

{

int i,b;

cout << "Enter number: ";

cin >> b;

for (i=0; i<=10; i++)

cout << "\n" << b * i;

getch ();

}

4 - This program is to examine student grades if successful or not:

#include <iostream.h>

#include <conio.h>

void main ()

{

int a,b;

cout << "Enter your mark: ";

cin >> a;

cout << "Enter the lowest mark: ";

cin >> b;

if (a>b)

cout << "pass";

else

cout << "not pass";

getch ();

}

5 - function call does not return values ​​and do not pass the transaction:

#include <iostream.h>

#include <conio.h>

void starline( );

void main( )

{

starline( );

cout << " Safa2 Jaidi\n";

starline( );

cout << " from Qalqilia " << endl;

cout << " Palestine " << endl;

starline( );

getch ();

}

void starline( )

{

for ( int j = 0; j < 17 ; j++)

cout << '*' ;

cout << endl ;

}