any 1 knw c++? tel me the problem in this programme

[lkbee]

#include <iostream>
using namespace std;

class student

{
int marks,grade;

public:

void getmarks();
void GRADE(int);

};

void student::getmarks()
{

cout<<"ENTER MARKS";
cin>>marks;
GRADE(marks);
}

void student::GRADE(int MK)
{

if MK>50

cout<<"pass";
else
cout<<"Fail";

}

int main()

{

getmarks();
GRADE();

return 0;
}

 

[lkbee]

any 1?

 

[v7soft]

#include <iostream>
#include <conio.h>
using namespace std;

class student

{
int marks,grade;

public:

void getmarks();
void GRADE(int);

};

void student::getmarks()
{

cout<<"ENTER MARKS";
cin>>marks;
GRADE(marks);
}

void student::GRADE(int MK)
{

if (MK>50)
{
cout<<"pass";
}
else{
cout<<"Fail";
}

}

int main()

{
student st;
st.getmarks();
getch();

return 0;
}

 

[v7soft]

mama hithanne bota one de wenawa mama edit karapu program aken

 

[rclakmal]

#include <stdio.h>

#include <iostream>
using namespace std;

class student

{
int marks,grade;

public:

int getmarks();
void GRADE(int x);

};

int student::getmarks()
{

cout<<"ENTER MARKS";
cin>>marks;
return marks;
}

void student::GRADE(int MK)
{

if (MK>50)

cout<<"pass";
else
cout<<"Fail";

}

int main()

{
    student s;
s.GRADE(s.getmarks());
return 0;
}