class Box { private: int l, b, h;

public: // Constructors Box() : l(0), b(0), h(0) {} Box(int length, int breadth, int height) : l(length), b(breadth), h(height) {} Box(const Box& other) : l(other.l), b(other.b), h(other.h) {}

// Getters
int getLength() const { return l; }
int getBreadth() const { return b; }
int getHeight() const { return h; }

// Volume
long long CalculateVolume() const {
    return 1LL * l * b * h;
}

// Lexicographic comparison: (l, b, h)
bool operator<(const Box& other) const {
    if (l != other.l) return l < other.l;
    if (b != other.b) return b < other.b;
    return h < other.h;
}

// Output operator
friend ostream& operator<<(ostream& out, const Box& B) {
    out << B.l << " " << B.b << " " << B.h;
    return out;
}

};

class Box {

private:
    int l;
    int b;
    int h;

public:

Box() : l(0), b(0), h(0) {}
Box(int l, int b, int h) : l(l), b(b), h(h) {}
Box(const Box& B) : l(B.l), b(B.b), h(B.h) {}

int getLength() const {return l;}
int getBreadth() const {return b;}
int getHeight() const {return h;}
long long CalculateVolume() const {
    return static_cast<long long>(l) * b * h;
}

bool operator<(const Box& B) const {
    if (l < B.l) return true;
    if (l == B.l && b < B.b) return true;
    if (l == B.l && b == B.b && h < B.h) return true;
    return false;
}

friend ostream& operator<<(ostream& out, Box& B){
    out << B.l << " " << B.b << " " << B.h;
    return out;
}

};

Okay, so test 3 uses really large numbers and we need to convert current int values into long long BEFORE calculations.

Anyone confused where to get the input and output format for this problem ==> Change the version from cpp 20 to 14. This will populate the editor with a 'check' function and some comments to explain.

whoever designed the test is very similar to a customer..

half of the info about what the expected behaviour is,

half of the info regarding operating ranges,

no info on inputs or any other systems around this...

Amazing !!!