## Algorithm

Problem Name: Accessing Inherited Functions

In this HackerRank Functions in C++ programming problem solution,

You are given three classes A, B and C. All three classes implement their own version of func.

In class A, func multiplies the value passed as a parameter by 2:

class A
{
public:
A(){
callA = 0;
}
private:
int callA;
void inc(){
callA++;
}

protected:
void func(int & a)
{
a = a * 2;
inc();
}
public:
int getA(){
return callA;
}
};


In class B, func multiplies the value passed as a parameter by

:

class B
{
public:
B(){
callB = 0;
}
private:
int callB;
void inc(){
callB++;
}
protected:
void func(int & a)
{
a = a * 3;
inc();
}
public:
int getB(){
return callB;
}
};


In class C, func multiplies the value passed as a parameter by

:

class C
{
public:
C(){
callC = 0;
}
private:
int callC;
void inc(){
callC++;
}
protected:
void func(int & a)
{
a = a * 5;
inc();
}
public:
int getC(){
return callC;
}
};


You are given a class D:

class D
{

int val;
public:
//Initially val is 1
D()
{
val = 1;
}

//Implement this function
void update_val(int new_val)
{

}
//For Checking Purpose
void check(int); //Do not delete this line.
};


You need to modify the class D and implement the function update_val which sets D's val to new_val by manipulating the value by only calling the func defined in classes A, B and C.

It is guaranteed that new_val has only

and

as its prime factors.

Input Format

Implement class D's function update_val. This function should update D's val only by calling A, B and C's func.

Constraints

1 <= new_val <= 10000

Note: The new_val only has 2 , 3, and 5as its prime factors.

Sample Input

new_val = 30

Sample Output

A's func will be called once.
B's func will be called once.
C's func will be called once.

Explanation

Initially, val

.

A's func is called once:

val = val*2
val = 2


B's func is called once:

val = val*3
val = 6


C's func is called once:

val = val*5
val = 30


## Code Examples

### #1 Code Example with C++ Programming

Code - C++ Programming


#include<iostream>

using namespace std;

class A
{
public:
A(){
callA = 0;
}
private:
int callA;
void inc(){
callA++;
}

protected:
void func(int & a)
{
a = a * 2;
inc();
}
public:
int getA(){
return callA;
}
};

class B
{
public:
B(){
callB = 0;
}
private:
int callB;
void inc(){
callB++;
}
protected:
void func(int & a)
{
a = a * 3;
inc();
}
public:
int getB(){
return callB;
}
};

class C
{
public:
C(){
callC = 0;
}
private:
int callC;
void inc(){
callC++;
}
protected:
void func(int & a)
{
a = a * 5;
inc();
}
public:
int getC(){
return callC;
}
};

class D: public A, B, C {
int val;
public:
//Initially val is 1
D() {
val = 1;
}

//Implement this function
void update_val(int new_val) {
int tmp = new_val;
while (new_val != 0) {
if (tmp == val) {
break;
} else if (new_val % 2 == 0) {
A::func(val);
new_val /= 2;
} else if (new_val % 3 == 0) {
B::func(val);
new_val /= 3;
} else if (new_val % 5 == 0) {
C::func(val);
new_val /= 5;
}
}
}
//For Checking Purpose
void check(int); //Do not delete this line.
};

void D::check(int new_val)
{
update_val(new_val);
cout << "Value = " << val << endl << "A's func called " << getA() << " times " << endl << "B's func called " << getB() << " times" << endl << "C's func called " << getC() << " times" << endl;
}

int main()
{
D d;
int new_val;
cin >> new_val;
d.check(new_val);

}

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