菜鸟求助，找错误，好多

#include <iostream>
//#include <stdio.h>
#include <cmath>

using namespace std;
#define K 1.38062E-23
#define EN 2.718//2.718281828
#define T 300
//#define BAN 1.6E-18

class Node
{
public:
double energyInPit;
double timeInPit;
double energyInUp;
double timeInUp;
double timeInAll;
Node *next,*prev;
Node(double e):energyInPit(e),timeInPit(0),
energyInUp(0),timeInUp(0),timeInAll(0),next(0),prev(0){}

};

class Atomlist
{
int size;
Node* first;
public:
Atomlist():first(0),size(0){}
Node* add(Node& a);
bool isEmpty()const {return !size;}
~Atomlist();
};

Atomlist::add(Node& a)
{
Node *pN =&a;
if(first)
{
pN -> next = first;
first -> prev = pN;
}

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