結果
| 問題 |
No.5007 Steiner Space Travel
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-07-30 15:21:27 |
| 言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 2 ms / 1,000 ms |
| コード長 | 4,438 bytes |
| コンパイル時間 | 2,414 ms |
| 実行使用メモリ | 5,160 KB |
| スコア | 3,100,624 |
| 最終ジャッジ日時 | 2022-07-30 15:21:31 |
| 合計ジャッジ時間 | 3,430 ms |
|
ジャッジサーバーID (参考情報) |
judge14 / judge12 |
| 純コード判定しない問題か言語 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 30 |
ソースコード
#include<bits/stdc++.h>
using namespace std;
using ll = long long; using ld = long double;
using pll = pair<ll, ll>; using pld = pair<ld, ld>;
using vll = vector<ll>; using vld = vector<ld>;
using vpll = vector<pll>; using vpld = vector<pld>;
using vvll = vector<vll>; using vvld = vector<vld>;
template<class T> using min_queue = priority_queue<T, vector<T>, greater<T>>;
template<class T> using max_queue = priority_queue<T, vector<T>, less<T>>;
#define rep(i, a, b) for(ll i = (ll)a; i < (ll)b; i++)
#define irep(i, v) for(auto i = (v).begin(); i != (v).end(); i++)
#define SZ(v) (ll)(v).size()
#define ALL(v) (v).begin(), (v).end()
#define SHIFT(a) (1LL << (ll)a)
#define endl '\n'
const ll INF = 1e18;
const ll MOD = 1e9 + 7;
const ld EPS = 1e-10;
const ld PI = M_PI;
ll power(ll x, ll y){ ll res = 1; while(y > 0){ if(y & 1){ res *= x; } x *= x; y >>= 1; } return res; }
bool in_grid(ll x, ll y, ll h, ll w){ return (0 <= x && x < h && 0 <= y && y < w); }
template<class T> void pvec(vector<T> &vec){ for(ll i = 0; i < (ll)vec.size(); i++){ if(i){ cout << " "; } cout << vec[i]; } cout << endl; }
template<class T> void pvvec(vector<vector<T>> &vec){ for(ll i = 0; i < (ll)vec.size(); i++){ for(ll j = 0; j < (ll)vec[i].size(); j++){ if(j){ cout << " "; } cout << vec[i][j]; } cout << endl; } }
template<class T> void asort(vector<T> &vec){ sort(ALL(vec)); }
template<class T> void rsort(vector<T> &vec){ sort(ALL(vec)); reverse(ALL(vec)); }
void pr(pll p){
cout << p.first << " " << p.second << endl;
}
using ppll = pair<pll, pll>;
bool comp1(ppll &p1, ppll &p2){
return (p1.first.first < p2.first.first);
}
bool comp2(ppll &p1, ppll &p2){
return (p1.first.first > p2.first.first);
}
//using mint = modint<MOD>;
int main(){
cin.tie(nullptr);
ios::sync_with_stdio(false);
srand((unsigned)time(NULL));
cout << fixed << setprecision(20);
ll n, m;
cin >> n >> m;
vpll vec(n);
rep(i, 0, n) cin >> vec[i].first >> vec[i].second;
vector<ppll> vec1, vec2, vec3, vec4;
ll x = vec[0].first, y = vec[0].second;
rep(i, 1, n){
ll xp = vec[i].first, yp = vec[i].second;
if(xp >= x && yp < y) vec1.push_back({vec[i], {1, i + 1}});
if(xp > x && yp >= y) vec2.push_back({vec[i], {1, i + 1}});
if(xp <= x && yp > y) vec3.push_back({vec[i], {1, i + 1}});
if(xp < x && yp <= y) vec4.push_back({vec[i], {1, i + 1}});
}
vpll sta(m);
/*
rep(i, 0, m){
sta[i] = {rand() % 1000, rand() % 1000};
pr(sta[i]);
}
rep(i, 0, m){
ll xp = sta[i].first, yp = sta[i].second;
if(xp >= x && yp < y) vec1.push_back({sta[i], {2, i + 1}});
if(xp > x && yp >= y) vec2.push_back({sta[i], {2, i + 1}});
if(xp <= x && yp > y) vec3.push_back({sta[i], {2, i + 1}});
if(xp < x && yp <= y) vec4.push_back({sta[i], {2, i + 1}});
}
*/
sort(ALL(vec1), comp1);
sort(ALL(vec2), comp2);
sort(ALL(vec3), comp2);
sort(ALL(vec4), comp1);
vll points = {0};
rep(i, 0, SZ(vec1)) points.push_back(vec1[i].second.second - 1);
rep(i, 0, SZ(vec2)) points.push_back(vec2[i].second.second - 1);
rep(i, 0, SZ(vec3)) points.push_back(vec3[i].second.second - 1);
rep(i, 0, SZ(vec4)) points.push_back(vec4[i].second.second - 1);
points.push_back(0);
max_queue<pair<ll, pll>> que;
rep(i, 0, SZ(points) - 1){
ll x1 = vec[points[i]].first, y1 = vec[points[i]].second;
ll x2 = vec[points[i + 1]].first, y2 = vec[points[i + 1]].second;
ll d = (x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2);
que.push({d, {points[i], points[i + 1]}});
}
rep(i, 0, m){
auto tmp = que.top().second; que.pop();
pll p1 = vec[tmp.first], p2 = vec[tmp.second];
sta[i] = {(p1.first + p2.first) / 2, (p1.second + p2.second) / 2};
}
rep(i, 0, m){
pr(sta[i]);
ll xp = sta[i].first, yp = sta[i].second;
if(xp >= x && yp < y) vec1.push_back({sta[i], {2, i + 1}});
if(xp > x && yp >= y) vec2.push_back({sta[i], {2, i + 1}});
if(xp <= x && yp > y) vec3.push_back({sta[i], {2, i + 1}});
if(xp < x && yp <= y) vec4.push_back({sta[i], {2, i + 1}});
}
sort(ALL(vec1), comp1);
sort(ALL(vec2), comp2);
sort(ALL(vec3), comp2);
sort(ALL(vec4), comp1);
ll v = n + m + 1;
cout << v << endl;
pr({1, 1});
rep(i, 0, SZ(vec1)) pr(vec1[i].second);
rep(i, 0, SZ(vec2)) pr(vec2[i].second);
rep(i, 0, SZ(vec3)) pr(vec3[i].second);
rep(i, 0, SZ(vec4)) pr(vec4[i].second);
pr({1, 1});
return 0;
}