Problem p02683 (C++) — buggy submission, verdict: Runtime Error

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); i++)
#define reps(i, s, n) for (int i = (s); i < (n); i++)
#define all(v) v.begin(), v.end()
#define outve(v)                                                               \\
  for (auto i : v)                                                             \\
    cout << i << " ";                                                          \\
  cout << endl
#define outmat(v)                                                              \\
  for (auto i : v) {                                                           \\
    for (auto j : i)                                                           \\
      cout << j << " ";                                                        \\
    cout << endl;                                                              \\
  }
#define in(n, v)                                                               \\
  for (int i = 0; i < (n); i++) {                                              \\
    cin >> v[i];                                                               \\
  }
#define out(n) cout << (n) << endl
#define fi first
#define se second
#define pb push_back
#define mod 1000000007
#define infi 1900000000
#define infl 1100000000000000000
#define cyes cout << "Yes" << endl
#define cno cout << "No" << endl
#define csp << " " <<
#define outset(n) cout << fixed << setprecision(n);
using namespace std;
using ll = long long;
using ld = long double;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vs = vector<string>;
using vl = vector<ll>;
using vvl = vector<vector<ll>>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using vvp = vector<vector<pair<int, int>>>;
template <typename T> using ve = vector<T>;
template <typename T> using pq2 = priority_queue<T>;
template <typename T> using pq1 = priority_queue<T, vector<T>, greater<T>>;
template <typename T> bool chmax(T &a, T b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
template <typename T> bool chmin(T &a, T b) {
  if (a > b) {
    a = b;
    return 1;
  }
  return 0;
}

int main() {

  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int N, M, X;
  cin >> N >> M >> X;

  vi C(N);
  vvi A(N, vi(M));
  rep(i, N) {
    cin >> C[i];
    rep(j, M) cin >> A[i][j];
  }

  int ans = infi;

  for (int i = 0; i < (1 << N); i++) {
    int an = 0;
    bitset<13> b(i);
    vi a(M, 0);
    rep(j, N) if (b[j] & 1) {
      an += C[j];
      rep(k, M) a[k] += A[j][k];
    }
    bool f = true;
    rep(j, M) if (a[j] < X) f = false;
    if (f)
      chmin(ans, an);
  }

  if (ans == infi)
    cout << -1 << endl;
  else
    cout << ans << endl;

  return 0;
}


Error: 0

Fixed submission:

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); i++)
#define reps(i, s, n) for (int i = (s); i < (n); i++)
#define all(v) v.begin(), v.end()
#define outve(v)                                                               \\
  for (auto i : v)                                                             \\
    cout << i << " ";                                                          \\
  cout << endl
#define outmat(v)                                                              \\
  for (auto i : v) {                                                           \\
    for (auto j : i)                                                           \\
      cout << j << " ";                                                        \\
    cout << endl;                                                              \\
  }
#define in(n, v)                                                               \\
  for (int i = 0; i < (n); i++) {                                              \\
    cin >> v[i];                                                               \\
  }
#define out(n) cout << (n) << endl
#define fi first
#define se second
#define pb push_back
#define mod 1000000007
#define infi 1900000000
#define infl 1100000000000000000
#define cyes cout << "Yes" << endl
#define cno cout << "No" << endl
#define csp << " " <<
#define outset(n) cout << fixed << setprecision(n);
using namespace std;
using ll = long long;
using ld = long double;
using vi = vector<int>;
using vvi = vector<vector<int>>;
using vs = vector<string>;
using vl = vector<ll>;
using vvl = vector<vector<ll>>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using vvp = vector<vector<pair<int, int>>>;
template <typename T> using ve = vector<T>;
template <typename T> using pq2 = priority_queue<T>;
template <typename T> using pq1 = priority_queue<T, vector<T>, greater<T>>;
template <typename T> bool chmax(T &a, T b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
template <typename T> bool chmin(T &a, T b) {
  if (a > b) {
    a = b;
    return 1;
  }
  return 0;
}

int main() {

  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int N, M, X;
  cin >> N >> M >> X;

  vi C(N);
  vvi A(N, vi(N));
  rep(i, N) {
    cin >> C[i];
    rep(j, M) cin >> A[i][j];
  }

  int ans = infi;

  for (int i = 0; i < (1 << N); i++) {
    int an = 0;
    bitset<12> b(i);
    vi a(M, 0);
    rep(j, N) if (b[j] & 1) {
      an += C[j];
      rep(k, M) a[k] += A[j][k];
    }
    bool f = true;
    rep(j, M) if (a[j] < X) f = false;
    if (f)
      chmin(ans, an);
  }

  if (ans == infi)
    cout << -1 << endl;
  else
    cout << ans << endl;

  return 0;
}