高精度减法c++代码

好的，以下是高精度减法的C++代码：

#include <iostream>
#include <cstring>
using namespace std;

const int N = 10010;

int a[N], b[N], c[N];

int main()
{
    string s1, s2;
    cin >> s1 >> s2;

    int len1 = s1.size(), len2 = s2.size();
    for (int i = 0; i < len1; i ++ ) a[i] = s1[len1 - i - 1] - '0';
    for (int i = 0; i < len2; i ++ ) b[i] = s2[len2 - i - 1] - '0';

    int len = max(len1, len2);
    for (int i = 0; i < len; i ++ )
    {
        c[i] += a[i] - b[i];
        if (c[i] < 0)
        {
            c[i] += 10;
            c[i + 1] --;
        }
    }

    while (len > 1 && !c[len - 1]) len -- ;
    for (int i = len - 1; i >= 0; i -- ) cout << c[i];
    cout << endl;

    return 0;
}