九度OJ 1016 火星A + B 未AC版，整型存储不下

#include <iostream>
#include <string.h>
#include <sstream>
#include <math.h>
#include <vector>
#include <algorithm>
using namespace std;
int susuTable[28]={1};
bool isLear(int num)
{
    if(num==2)
        return true;
    else
    {
        int i = 2;
        for(;i<=sqrt(num);i++)
        {
            if(num%i == 0)
                return false;
        }
        return true;
    }
}
void setArr(int arr[])
{
    int i = 2;
    int totalBit = 1;
    while(totalBit!=28)
    {
        if(isLear(i) ==true)
        {
            arr[totalBit] = i;
            totalBit++;
        }
        i++;
    }
}
void display(int arr[])
{
    int i = 0;
    for(;i<28;i++)
    {
        cout<<arr[i]<<" ";
    }
}

long long sparkToInt(string spark)
{

    long long Int_num = 0;
    int len = spark.length();
    if(len == 1)
    {
        Int_num = spark[0] - ‘0‘;
        return Int_num;
    }
    int last=0;

    int i = 0;
    for(;i<len;i++)
        if(spark[i]==‘,‘)
            last++;
    i = 0;
    int temp = 0;
    while(i!=len)
    {
        temp = 0;
        while(spark[i]!=‘,‘ && i!=len)
        {
            temp = temp*10 + (int)(spark[i]-‘0‘);
            i++;
        }

        Int_num += temp;
        Int_num *= susuTable[last--];
        if(i==len)
            break;
        else
        {
            i++;
        }
    }
    return Int_num;
}

int main()
{
    string num_a,num_b;

    setArr(susuTable);
    display(susuTable);
    //cout<<endl;
    cin>>num_a>>num_b;
    while(!(num_a =="0" || num_b=="0"))
    {
        long long a = sparkToInt(num_a);
        long long b = sparkToInt(num_b);
        //cout<<endl<<a<<" "<<b<<endl;
        long long add = a+b;
        //cout<<add<<endl;
        string result="";
        int index = 1;
        while(add!=0)
        {
            ostringstream ost;
            ost<<add%susuTable[index];
            string temp(ost.str());
            //result.insert(result.begin(),add%susuTable[index]+"");
            temp.append(result);
            result = temp;
            //result.push_back((char)(add%susuTable[index]));
            //cout<<add%susuTable[index];
            add = add/susuTable[index];
            if(add!=0)
            {
                result.insert(result.begin(),‘,‘);
            }

            index++;
        }
        cout<<result<<endl;
        num_a.clear();
        num_b.clear();
        cin>>num_a>>num_b;
    }
    return 1;
}