[原创] 南开的超级大数求和C++版

听雨飞扬

#include<iostream>
#include<cstring>
using namespace std;
class SupperNum
{
public:
    SupperNum();
    ~SupperNum();
    void Plus();    //接口与实现分离
    void dump() const;   //打印超级大数求和结果
    void scan();
protected:
    int get_a() const;  //超级大数a的长
    int get_b() const;  //超级大数b的长
    int get_sum() const;  //求和后的数的长
    enum{Maxsize=100};
private:
    void Core_Sum();  //核心函数
    char *a;
    char *b;
    char *sum;
    int flag;  //进位标志
};
SupperNum::SupperNum()
{
    a = new char[Maxsize+1];
    b = new char[Maxsize+1];
    sum = new char[Maxsize+2];
    flag = 0;  //不进位为0
}
SupperNum::~SupperNum()
{
    delete [] a;
    delete [] b;
    delete [] sum;
}