Box It! C++
Problem Statement :
Design a class named Box whose dimensions are integers and private to the class. The dimensions are labelled: length l, breadth b , and height h.
The default constructor of the class should initialize, l , b and h to 0.
The parameterized constructor Box(int length, int breadth, int height) should initialize Box's l, b and h to length, breadth and height.
The copy constructor Box(Box B ) should set l, b and h to B 's l, b and h, respectively.
Apart from the above, the class should have 4 functions:
int getLength() - Return box's length
int getBreadth() - Return box's breadth
int getHeight() - Return box's height
long long CalculateVolume() - Return the volume of the box
For example,
Box b1; // Should set b1.l = b1.b = b1.h = 0;
Box b2(2, 3, 4); // Should set b1.l = 2, b1.b = 3, b1.h = 4;
b2.getLength(); // Should return 2
b2.getBreadth(); // Should return 3
b2.getheight(); // Should return 4
b2.CalculateVolume(); // Should return 24
bool x = (b1 < b2); // Should return true based on the conditions given
cout<<b2; // Should print 2 3 4 in order.
Constraints
0 <= l, b, h <= 10^5
Two boxes being compared using the < operator will not have all three dimensions equal.
Solution :
Solution in C :
class Box {
int l, b, h;
public:
Box() : l(0), b(0), h(0) { BoxesCreated++; }
Box(int length, int breadth, int height) : l(length), b(breadth), h(height) { BoxesCreated++; }
Box(const Box& b) : l(b.l), b(b.b), h(b.h) { BoxesCreated++; }
int getLength() const {
return l;
}
int getBreadth() const {
return b;
}
int getHeight() const {
return h;
}
long long CalculateVolume() const {
return 1LL * l * b * h;
}
~Box() {
BoxesDestroyed++;
}
bool operator<(const Box& another) const {
if (l != another.l) {
return l < another.l;
}
if (b != another.b) {
return b < another.b;
}
return h < another.h;
}
void output(ostream& out) const {
out << l << " " << b << " " << h;
}
};
ostream& operator<<(ostream& out, Box b) {
b.output(out);
return out;
}
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