Language: C++

#include <algorithm>
#include <bitset>
#include <cmath>
#include <complex>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <regex>
#include <set>
#include <stack>
#include <string>
#include <vector>

const int MOD = 1e9 + 7;
const int iINF = 2147483647 / 2;
const long long int llINF = 9223372036854775807 / 2;

using namespace std;
using ll = long long int;
using vl = vector<ll>;
using vvl = vector<vector<ll>>;
using vvvl = vector<vector<vector<ll>>>;

typedef pair<ll, ll> pll;
bool paircomp(const pll &a, const pll &b) {
  if (a.first == b.first)
    return a.second < b.second;
  return a.first < b.first;
}

#define REP(i, n) for (ll i = 0; i < (n); i++)
#define RREP(i, n) for (ll i = (n)-1; i >= 0; i--)
#define FOR(i, a, b) for (ll i = (a); i < (b); i++)
#define AUTO(i, m) for (auto &i : m)
#define ALL(a) (a).begin(), (a).end()
#define MAX(vec) *std::max_element(vec.begin(), vec.end())
#define MIN(vec) *std::min_element(vec.begin(), vec.end())
#define ARGMAX(vec)                                                            \
  std::distance(vec.begin(), std::max_element(vec.begin(), vec.end()))
#define ARGMIN(vec)                                                            \
  std::distance(vec.begin(), std::min_element(vec.begin(), vec.end()))
#define REV(T) greater<T>()
#define PQ(T) priority_queue<T, vector<T>, greater<T>>
#define VVL(a, b, c) vector<vector<ll>>(a, vector<ll>(b, c))
#define VV(T, a, b, c) vector<vector<T>>(a, vector<T>(b, c))
#define VVVL(a, b, c, d)                                                       \
  vector<vector<vector<ll>>>(a, vector<vector<ll>>(b, vector<ll>(c, d)))
#define VVV(T, a, b, c, d)                                                     \
  vector<vector<vector<T>>>(a, vector<vector<T>>(b, vector<T>(c, d)))
#define SP(a) setprecision(a)
#define SQRT(a) sqrt((long double)(a))
#define DPOW(a, b) pow((long double)(a), (long double)(b))
#define UNIQUE(vec)                                                            \
  do {                                                                         \
    sort(ALL((vec)));                                                          \
    (vec).erase(std::unique(ALL((vec))), (vec).end());                         \
  } while (0)

ll POW(ll n, ll m) {
  if (m == 0) {
    return 1;
  } else if (m % 2 == 0) {
    ll tmp = POW(n, m / 2);
    return (tmp * tmp);
  } else {
    return (n * POW(n, m - 1));
  }
}

int dx[4] = {1, 0, -1, 0};
int dy[4] = {0, 1, 0, -1};

vl func(vl &DP, string &S, ll N, ll M, ll b, ll now, ll limit) {
  vl ans;
  if ((limit <= 0 && now < N) || now > N || now + (limit * M) < N)
    return ans;
  else if (now == N) {
    ans.push_back(b);
    return ans;
  }
  if (DP[now] == limit)
    return ans;
  DP[now] = limit;
  FOR(i, 1, M + 1) {
    if (S[now + i] == '0') {
      auto po = func(S, N, M, i, now + i, limit - 1);
      if (po.size() > 0) {
        ans.push_back(b);
        AUTO(p, po) ans.push_back(p);
        return ans;
      }
    }
  }
  return ans;
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  ll N, M;
  cin >> N >> M;
  string S;
  cin >> S;
  //最短
  ll now = 0;
  ll count = 0;
  ll oldnow = 0;
  vl DP(N + 1, 0);
  while (true) {
    oldnow = now;
    count++;
    for (ll i = M; i >= 1; i--) {
      if (i + now > N || S[i + now] == '1')
        continue;
      else {
        now += i;
        break;
      }
    }
    if (now == N)
      break;
    if (oldnow == now) {
      cout << -1 << endl;
      return 0;
    }
  }
  auto A = func(DP, S, N, M, 0, 0, count);
  REP(i, A.size() - 1) cout << A[i + 1] << " ";
  cout << endl;

  return 0;
}


Compiler output:
a.cc: In function 'vl func(vl&, std::string&, ll, ll, ll, ll, ll)':
a.cc:90:22: error: invalid initialization of reference of type 'vl&' {aka 'std::vector<long long int>&'} from expression of type 'std::string' {aka 'std::__cxx11::basic_string<char>'}
   90 |       auto po = func(S, N, M, i, now + i, limit - 1);
      |                      ^
a.cc:77:13: note: in passing argument 1 of 'vl func(vl&, std::string&, ll, ll, ll, ll, ll)'
   77 | vl func(vl &DP, string &S, ll N, ll M, ll b, ll now, ll limit) {
      |         ~~~~^~