#include<iostream>

using namespace std;

int BoxVolume(int length, int width, int height);
int BoxVolume(int length, int width);
int BoxVolume(int length);

int main(void){
        cout<<"[3, 3, 3]"<<BoxVolume(3, 3, 3)<<endl;
        cout<<"[5, 5, D]"<<BoxVolume(5, 5)<<endl;
        cout<<"[7, D, D]"<<BoxVolume(7)<<endl;
        return 0;
}

int BoxBolume(int length, int width, int height){
        return length*width*height;
}


int BoxBolume(int length, int width){
        return length*width;
}
int BoxBolume(int length){
        return length;
}


아니 이코드가 뭐가 문제여서

undefined reference 오류가 뜨는거지 좀 알려주실분 안계시나요 ㅜ