代码里特判写的很明确，本地按照测试点输入10\n1输出是0和测试点一致。然而过不了，求助

#include <iostream>
#include <algorithm>
#include <climits>
#include <queue>
using namespace std;
vector<char> s;
void out()
{
        int i;
        for (i = 0; i < s.size(); ++i)
        {
            if (s[i] != '0')
                break;
        }
        for (; i < s.size(); ++i)
        {
            printf("%c", s[i]);
        }
        printf("\n");
}
int main(int argc, char const *argv[])
{
    int k, c = 0;
    string ss;
    getline(cin, ss);
    copy(ss.begin(), ss.end(), back_inserter(s));
    scanf("%d", &k);
    while (k)
    {
        int l;
        char m = 'A';
        for (int i = c; i <= k + c; ++i)
        {
            if (s[i] < m)
            {
                m = s[i];
                l = i;
            }
        }
        s.erase(s.begin() + c, s.begin() + l);
        k -= l - c;
        ++c;
    }
    out();
    return 0;
}