Submission #8362119


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// includes
#include <bits/stdc++.h>
using namespace std;

// macros
#define pb emplace_back
#define mk make_pair
#define FOR(i, a, b) for(int i=(a);i<(b);++i)
#define rep(i, n) FOR(i, 0, n)
#define rrep(i, n) for(int i=((int)(n)-1);i>=0;i--)
#define irep(itr, st) for(auto itr = (st).begin(); itr != (st).end(); ++itr)
#define irrep(itr, st) for(auto itr = (st).rbegin(); itr != (st).rend(); ++itr)
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define UNIQUE(v) v.erase(unique(v.begin(), v.end()), v.end())
#define bit(n) (1LL<<(n))
// functions
template <class T>bool chmax(T &a, const T &b){if(a < b){a = b; return 1;} return 0;}
template <class T>bool chmin(T &a, const T &b){if(a > b){a = b; return 1;} return 0;}
template <typename T> istream &operator>>(istream &is, vector<T> &vec){for(auto &v: vec)is >> v; return is;}
template <typename T> ostream &operator<<(ostream &os, const vector<T>& vec){for(int i = 0; i < vec.size(); i++){ os << vec[i]; if(i + 1 != vec.size())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const set<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const unordered_set<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const multiset<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T> ostream &operator<<(ostream &os, const unordered_multiset<T>& st){for(auto itr = st.begin(); itr != st.end(); ++itr){ os << *itr; auto titr = itr; if(++titr != st.end())os << " ";} return os;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p){os << p.first << " " << p.second; return os;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const map<T1, T2> &mp){for(auto itr = mp.begin(); itr != mp.end(); ++itr){ os << itr->first << ":" << itr->second; auto titr = itr; if(++titr != mp.end())os << " "; } return os;}
template <typename T1, typename T2> ostream &operator<<(ostream &os, const unordered_map<T1, T2> &mp){for(auto itr = mp.begin(); itr != mp.end(); ++itr){ os << itr->first << ":" << itr->second; auto titr = itr; if(++titr != mp.end())os << " "; } return os;}
//  types
using ll = long long int;
using P = pair<int, int>;
// constants
const int inf = 1e9;
const ll linf = 1LL << 50;
const double EPS = 1e-10;
const int mod = 1000000007;
const int dx[4] = {-1, 0, 1, 0};
const int dy[4] = {0, -1, 0, 1};
// io
struct fast_io{
  fast_io(){ios_base::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(20);}
} fast_io_;


int main(int argc, char const* argv[])
{
  ll n; cin >> n;
  ll k; cin >> k;

  vector<pair<pair<ll, ll>, ll>> res(n);
  set<ll> st;
  rep(i, 2 * n)st.insert(i);
  rep(i, n){
    ll mini = *(st.begin());
    ll jb = 2 * n - k + i - mini;
    auto itr = st.upper_bound(jb);
    if(itr != st.begin()){
      itr--;
      ll v1 = *itr;
      st.erase(itr);
      ll rem = 2 * n - k + i - v1;
      itr = st.upper_bound(rem);
      itr--;
      ll v2 = *itr;
      st.erase(itr);
      if(k + v2 + k + v1 > k + 2 * n + i){
        cout << -1 << endl;
        return 0;
      }
      res[i] = mk(mk(k + v2, k + v1), k + 2 * n + i);
    }else{
      cout << -1 << endl;
      return 0;
    }
  }

  rep(i, n){
    assert(res[i].first.first > 0);
    assert(res[i].first.second > 0);
    assert(res[i].second > 0);
    assert(res[i].first.first + res[i].first.second <= res[i].second);
  }

  rep(i, n){
    cout << res[i].first.first << " " << res[i].first.second << " " << res[i].second << endl;
  }
  return 0;
}

Submission Info

Submission Time
Task E - Non-triangular Triplets
User fumiphys
Language C++14 (GCC 5.4.1)
Score 0
Code Size 3971 Byte
Status RE
Exec Time 237 ms
Memory 13952 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 700
Status
AC × 2
AC × 27
WA × 5
RE × 6
Set Name Test Cases
Sample sample01.txt, sample02.txt
All sample01.txt, sample02.txt, in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, sample01.txt, sample02.txt
Case Name Status Exec Time Memory
in01.txt AC 220 ms 13184 KB
in02.txt AC 237 ms 13696 KB
in03.txt AC 231 ms 13568 KB
in04.txt AC 234 ms 13824 KB
in05.txt AC 215 ms 12800 KB
in06.txt AC 216 ms 12672 KB
in07.txt AC 227 ms 13312 KB
in08.txt AC 221 ms 13056 KB
in09.txt AC 213 ms 12672 KB
in10.txt AC 236 ms 13952 KB
in11.txt RE 187 ms 10880 KB
in12.txt WA 59 ms 11008 KB
in13.txt RE 159 ms 11904 KB
in14.txt WA 56 ms 10624 KB
in15.txt RE 155 ms 10752 KB
in16.txt RE 163 ms 11520 KB
in17.txt RE 160 ms 11648 KB
in18.txt WA 50 ms 9600 KB
in19.txt WA 59 ms 10624 KB
in20.txt RE 164 ms 11776 KB
in21.txt AC 67 ms 11648 KB
in22.txt AC 52 ms 9856 KB
in23.txt AC 225 ms 13568 KB
in24.txt AC 57 ms 11264 KB
in25.txt AC 127 ms 7808 KB
in26.txt AC 112 ms 7040 KB
in27.txt AC 57 ms 3712 KB
in28.txt AC 88 ms 7040 KB
in29.txt AC 47 ms 12032 KB
in30.txt AC 68 ms 12032 KB
in31.txt WA 68 ms 12032 KB
in32.txt AC 67 ms 12032 KB
in33.txt AC 1 ms 256 KB
in34.txt AC 1 ms 256 KB
sample01.txt AC 1 ms 256 KB
sample02.txt AC 1 ms 256 KB