Problem p02609 (C++) — buggy submission, verdict: Runtime Error

#pragma region header
#include <bits/stdc++.h>
#define int long long
#define all(a) begin(a), end(a)
#define rall(a) rbegin(a), rend(a)
#define mp make_pair
#define mt make_tuple
#define rep1(i, n) for (decltype(+n) i = 0; i < (n); i++)
#define rrep1(i, n) for (auto i = n - 1; i > static_cast<decltype(i)>(-1); i--)
#define rep2(i, a, b) for (auto i = (a); i < (b); i++)
#define rrep2(i, a, b) for (auto i = b - 1; i >= a; i--)
#define GET_MACRO(_1, _2, _3, NAME, ...) NAME
#define rep(...) GET_MACRO(__VA_ARGS__, rep2, rep1)(__VA_ARGS__)
#define rrep(...) GET_MACRO(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__)
#define each(i, a) for (auto &&i : (a))
using namespace std;

using ld = long double;
using vi = vector<int>;
using vvi = vector<vi>;
using vs = vector<string>;
using vvs = vector<vs>;
using vd = vector<ld>;
using vvd = vector<vd>;
using vb = vector<bool>;
using vvb = vector<vb>;
using pii = pair<int, int>;
using vp = vector<pii>;
using vvp = vector<vp>;
using mii = map<int, int>;
using vm = vector<mii>;
using vvm = vector<vm>;
template <class T> using less_queue = priority_queue<T>;
template <class T>
using greater_queue = priority_queue<T, vector<T>, greater<T>>;

constexpr int INF = 1e18;

template <class T> void SORT(T &a) { stable_sort(all(a)); }
template <class T> void RSORT(T &a) { stable_sort(rall(a)); }
template <class T> void rev(T &a) { reverse(rall(a)); }
template <class T> void uniq(T &a) { a.erase(unique(all(a)), end(a)); }
template <class T> auto min_of(T a) { return *min_element(all(a)); }
template <class T> auto max_of(T a) { return *max_element(all(a)); }
template <class T> int sum_of(T a) { return accumulate(all(a), 0ll); }
template <class T, class U> auto sum_of(T a, U init) {
  return accumulate(all(a), init);
}
template <class T, class U> int count_of(T a, U i) { return count(all(a), i); }
template <class T, class U> int lower_index(T a, U i) {
  return lower_bound(all(a), i) - begin(a);
} // use member func for set
template <class T, class U> int upper_index(T a, U i) {
  return upper_bound(all(a), i) - begin(a);
}
template <class T, class U> bool binary(T a, U i) {
  return binary_search(all(a), i);
}
template <class T, class U> bool has(T a, U i) {
  return find(all(a), i) != end(a);
}
template <class T> int sz(T a) { return a.size(); };

template <class T> void COUT(T x) { cout << x << endl; }
template <class T, class U> void COUT(T x, U y) {
  cout << x << ' ' << y << endl;
}
template <class T, class U, class V> void COUT(T x, U y, V z) {
  cout << x << ' ' << y << ' ' << z << endl;
}
template <class T> void CSP(T x) { cout << x << ' '; }
template <class T> void CVEC(T v) {
  int c = v.size() - 1;
  for (size_t i = 0; i < c; i++)
    cout << v[i] << ' ';
  if (c > -1)
    cout << v[c];
  cout << endl;
}

template <class T> bool amin(T &a, const T &b) {
  if (a > b) {
    a = b;
    return true;
  }
  return false;
}
template <class T> bool amax(T &a, const T &b) {
  if (a < b) {
    a = b;
    return true;
  }
  return false;
}

int ceil_div(int x, int y) { return (x - 1) / y + 1; }

#pragma endregion header

// no MOD

void solve(int n, string x) {
  rev(x);
  int pc = count_of(x, '1'), k = 0;
  for (int i = pc; i > 0; i /= 2)
    k++;
  function<pair<vi, int>(int)> rems = [&](int m) {
    vi ret(n);
    int b = 1, s = 0;
    if (m == 0)
      return mp(ret, s);
    rep(i, n) {
      b %= m;
      ret[i] = b;
      if (x[i] == '1') {
        s += b;
        s %= m;
      }
      b *= 2;
    }
    return mp(ret, s);
  };
  auto rems_p1 = rems(pc + 1), rems_m1 = rems(pc - 1);
  rrep(i, n) {
    if (x[i] == '1') {
      int a = rems_m1.second, m = pc - 1;
      if (m == 0) {
        COUT(0);
        continue;
      }
      a = (a - rems_m1.first[i] + m) % m;
      int ans = 1;
      while (a > 0) {
        a %= __builtin_popcountll(a);
        ans++;
      }
      COUT(ans);
    } else {
      int a = rems_p1.second, m = pc + 1;
      a = (a + rems_p1.first[i]) % m;
      int ans = 1;
      while (a > 0) {
        a %= __builtin_popcountll(a);
        ans++;
      }
      COUT(ans);
    }
  }
}

#pragma region main
signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout << fixed << setprecision(15);

  int n;
  cin >> n;
  string x;
  cin >> x;
  solve(n, x);
}
#pragma endregion main


Error: 0

Fixed submission:

#pragma region header
#include <bits/stdc++.h>
#define int long long
#define all(a) begin(a), end(a)
#define rall(a) rbegin(a), rend(a)
#define mp make_pair
#define mt make_tuple
#define rep1(i, n) for (decltype(+n) i = 0; i < (n); i++)
#define rrep1(i, n) for (auto i = n - 1; i > static_cast<decltype(i)>(-1); i--)
#define rep2(i, a, b) for (auto i = (a); i < (b); i++)
#define rrep2(i, a, b) for (auto i = b - 1; i >= a; i--)
#define GET_MACRO(_1, _2, _3, NAME, ...) NAME
#define rep(...) GET_MACRO(__VA_ARGS__, rep2, rep1)(__VA_ARGS__)
#define rrep(...) GET_MACRO(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__)
#define each(i, a) for (auto &&i : (a))
using namespace std;

using ld = long double;
using vi = vector<int>;
using vvi = vector<vi>;
using vs = vector<string>;
using vvs = vector<vs>;
using vd = vector<ld>;
using vvd = vector<vd>;
using vb = vector<bool>;
using vvb = vector<vb>;
using pii = pair<int, int>;
using vp = vector<pii>;
using vvp = vector<vp>;
using mii = map<int, int>;
using vm = vector<mii>;
using vvm = vector<vm>;
template <class T> using less_queue = priority_queue<T>;
template <class T>
using greater_queue = priority_queue<T, vector<T>, greater<T>>;

constexpr int INF = 1e18;

template <class T> void SORT(T &a) { stable_sort(all(a)); }
template <class T> void RSORT(T &a) { stable_sort(rall(a)); }
template <class T> void rev(T &a) { reverse(rall(a)); }
template <class T> void uniq(T &a) { a.erase(unique(all(a)), end(a)); }
template <class T> auto min_of(T a) { return *min_element(all(a)); }
template <class T> auto max_of(T a) { return *max_element(all(a)); }
template <class T> int sum_of(T a) { return accumulate(all(a), 0ll); }
template <class T, class U> auto sum_of(T a, U init) {
  return accumulate(all(a), init);
}
template <class T, class U> int count_of(T a, U i) { return count(all(a), i); }
template <class T, class U> int lower_index(T a, U i) {
  return lower_bound(all(a), i) - begin(a);
} // use member func for set
template <class T, class U> int upper_index(T a, U i) {
  return upper_bound(all(a), i) - begin(a);
}
template <class T, class U> bool binary(T a, U i) {
  return binary_search(all(a), i);
}
template <class T, class U> bool has(T a, U i) {
  return find(all(a), i) != end(a);
}
template <class T> int sz(T a) { return a.size(); };

template <class T> void COUT(T x) { cout << x << endl; }
template <class T, class U> void COUT(T x, U y) {
  cout << x << ' ' << y << endl;
}
template <class T, class U, class V> void COUT(T x, U y, V z) {
  cout << x << ' ' << y << ' ' << z << endl;
}
template <class T> void CSP(T x) { cout << x << ' '; }
template <class T> void CVEC(T v) {
  int c = v.size() - 1;
  for (size_t i = 0; i < c; i++)
    cout << v[i] << ' ';
  if (c > -1)
    cout << v[c];
  cout << endl;
}

template <class T> bool amin(T &a, const T &b) {
  if (a > b) {
    a = b;
    return true;
  }
  return false;
}
template <class T> bool amax(T &a, const T &b) {
  if (a < b) {
    a = b;
    return true;
  }
  return false;
}

int ceil_div(int x, int y) { return (x - 1) / y + 1; }

#pragma endregion header

// no MOD

void solve(int n, string x) {
  rev(x);
  int pc = count_of(x, '1'), k = 0;
  for (int i = pc; i > 0; i /= 2)
    k++;
  function<pair<vi, int>(int)> rems = [&](int m) {
    vi ret(n);
    int b = 1, s = 0;
    rep(i, n) {
      b %= m;
      ret[i] = b;
      if (x[i] == '1') {
        s += b;
        s %= m;
      }
      b *= 2;
    }
    return mp(ret, s);
  };
  auto rems_p1 = rems(pc + 1), rems_m1 = rems(pc - 1);
  rrep(i, n) {
    if (x[i] == '1') {
      int a = rems_m1.second, m = pc - 1;
      a = (a - rems_m1.first[i] + m) % m;
      int ans = 1;
      while (a > 0) {
        a %= __builtin_popcountll(a);
        ans++;
      }
      COUT(ans);
    } else {
      int a = rems_p1.second, m = pc + 1;
      a = (a + rems_p1.first[i]) % m;
      int ans = 1;
      while (a > 0) {
        a %= __builtin_popcountll(a);
        ans++;
      }
      COUT(ans);
    }
  }
}

#pragma region main
signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout << fixed << setprecision(15);

  int n;
  cin >> n;
  string x;
  cin >> x;
  solve(n, x);
}
#pragma endregion main