Submission #10786571


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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 whole(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define bit(n) (1LL<<(n))
// functions
template <typename T> void unique(T& c){c.erase(std::unique(c.begin(), c.end()), c.end());}
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(nullptr); cout << fixed << setprecision(20);}
} fast_io_;

struct tri{
  ll a, b, c;
  tri(){}
  tri(ll a, ll b, ll c): a(a), b(b), c(c){}
};

int main(int argc, char const* argv[])
{
  ll n, k; cin >> n >> k;
  if(2 * k > n + 1){
    cout << -1 << endl;
    return 0;
  }
  vector<tri> res; res.reserve(n);
  vector<bool> used(n, false);
  for(ll i = 0; ; i++){
    if(k + i + n + k - 1 >= k + 2 * n)break;
    ll sum = k + i + k + i + n + k - 1;
    sum = max(sum, k + 2 * n);
    while(used[sum-k-2*n])sum++;
    used[sum-k-2*n] = true;
    res.pb(k + i, k + i + n + k - 1, sum);
  }
  for(ll i = n - k + 1; ; i++){
    if(i + k - 1 >= n + k - 1)break;
    ll sum = k + i + k + i + k - 1;
    sum = max(sum, k + 2 * n);
    while(used[sum-k-2*n])sum++;
    used[sum-k-2*n] = true;
    res.pb(k + i, k + i + k - 1, sum);
  }
  //assert(sz(res) == n);
  rep(i, n){
    cout << res[i].a << " " << res[i].b << " " << res[i].c << "\n";
  }
  cout << flush;
  return 0;
}

Submission Info

Submission Time
Task E - Non-triangular Triplets
User fumiphys
Language C++14 (GCC 5.4.1)
Score 0
Code Size 3946 Byte
Status TLE
Exec Time 2103 ms
Memory 4608 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 700
Status
AC × 2
AC × 34
TLE × 4
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 TLE 2013 ms 4352 KB
in02.txt TLE 2103 ms 2176 KB
in03.txt AC 1149 ms 4480 KB
in04.txt AC 1592 ms 4608 KB
in05.txt AC 1555 ms 4224 KB
in06.txt AC 918 ms 4224 KB
in07.txt AC 1208 ms 4352 KB
in08.txt TLE 2103 ms 2432 KB
in09.txt AC 1611 ms 4224 KB
in10.txt TLE 2103 ms 2560 KB
in11.txt AC 22 ms 4224 KB
in12.txt AC 22 ms 4224 KB
in13.txt AC 24 ms 4608 KB
in14.txt AC 22 ms 4096 KB
in15.txt AC 22 ms 4224 KB
in16.txt AC 23 ms 4480 KB
in17.txt AC 23 ms 4480 KB
in18.txt AC 20 ms 3712 KB
in19.txt AC 22 ms 4096 KB
in20.txt AC 24 ms 4480 KB
in21.txt AC 1 ms 256 KB
in22.txt AC 1 ms 256 KB
in23.txt AC 1500 ms 4480 KB
in24.txt AC 1 ms 256 KB
in25.txt AC 745 ms 2560 KB
in26.txt AC 553 ms 2304 KB
in27.txt AC 164 ms 1280 KB
in28.txt AC 272 ms 1920 KB
in29.txt AC 1 ms 256 KB
in30.txt AC 1 ms 256 KB
in31.txt AC 24 ms 4608 KB
in32.txt AC 1 ms 256 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