vs上正常，但提交编译错误

vs上运行的好好的，怎么一提交就编译错误

#include<iostream>
using namespace std;
#include<cstring>
#include<string>
#include<string.h>
int m[100000],b[1000000];
int len;
void  cun(string s1)
{
    for (int i = 0; i <s1.size(); i++)
    {
        if (s1[i] <= '9' && s1[i]>='0')
        {
            m[s1.size() - i] = s1[i]-'0';
        }
        else
        {
            m[s1.size() - i] = s1[i] - 'A'+10;
        }
    }
    /*for (int i = 1; i <= s1.size(); i++)
    {
        cout << m[i];
    }*/
}
void fan(int a[])
{
    for (int i = 1; i <= len; i++)
    {
        b[len + 1 - i] = a[i];
    }
}
void pplus(int a[],int b[],int n)
{
    for (int i = 1; i <= len; i++)
    {
        a[i] += b[i];
        a[i + 1] += a[i] / n;
        a[i] %= n;
    }
    if (a[len + 1])
    {
        len++;
    }
}
bool judge(int a[])
{
    string s,ss;
    for (int i = 1; i <= len; i++)
    {
        s+=to_string(a[i]);//啊啊啊啊？

    }
    ss = s;
    reverse(s.begin(), s.end());
    if (ss == s)return 1;
    else return 0;
}

int main()
{
    string s1;
    int n;
    cin >> n>> s1;
    cun(s1);
    len = s1.size();
    int v = 0;
    while (!judge(m))
    {
        fan(m);
        pplus(m, b, n);
        v++;
        if (v > 30)
        {
            break;
        }
    }
    if (v > 30)
    {
        cout<<"Impossible!";
    }
    else
    {
        cout <<"STEP="<< v;
    }

    return 0;
}