結果
問題 | No.1265 Balloon Survival |
ユーザー | kei |
提出日時 | 2020-10-23 22:25:00 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 75 ms / 2,000 ms |
コード長 | 2,945 bytes |
コンパイル時間 | 2,036 ms |
コンパイル使用メモリ | 186,736 KB |
実行使用メモリ | 19,500 KB |
最終ジャッジ日時 | 2024-07-21 11:06:21 |
合計ジャッジ時間 | 4,010 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 3 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 10 ms
5,420 KB |
testcase_15 | AC | 8 ms
5,376 KB |
testcase_16 | AC | 4 ms
5,376 KB |
testcase_17 | AC | 41 ms
15,664 KB |
testcase_18 | AC | 6 ms
5,376 KB |
testcase_19 | AC | 5 ms
5,376 KB |
testcase_20 | AC | 10 ms
5,376 KB |
testcase_21 | AC | 20 ms
7,400 KB |
testcase_22 | AC | 13 ms
6,752 KB |
testcase_23 | AC | 15 ms
6,872 KB |
testcase_24 | AC | 72 ms
19,496 KB |
testcase_25 | AC | 72 ms
19,368 KB |
testcase_26 | AC | 72 ms
19,496 KB |
testcase_27 | AC | 73 ms
19,492 KB |
testcase_28 | AC | 73 ms
19,500 KB |
testcase_29 | AC | 72 ms
19,372 KB |
testcase_30 | AC | 73 ms
19,368 KB |
testcase_31 | AC | 72 ms
19,496 KB |
testcase_32 | AC | 75 ms
19,368 KB |
testcase_33 | AC | 74 ms
19,368 KB |
testcase_34 | AC | 2 ms
5,376 KB |
testcase_35 | AC | 2 ms
5,376 KB |
ソースコード
#include "bits/stdc++.h" using namespace std; typedef long long ll; typedef pair<int, int> pii; typedef pair<ll, ll> pll; const int INF = 1e9; const ll LINF = 1e18; inline ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; } inline ll lcm(ll a, ll b) { return a / gcd(a, b)*b; } template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; } template<class T> ostream& operator << (ostream& out,const vector<T>& V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; } template<class T> ostream& operator << (ostream& out,const vector<vector<T> >& Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; } template<class S,class T> ostream& operator << (ostream& out,const map<S,T>& mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; } template<typename T>vector<T> make_v(size_t a){return vector<T>(a);} template<typename T,typename... Ts>auto make_v(size_t a,Ts... ts){return vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...));} template<typename T,typename V> typename enable_if<is_class<T>::value==0>::type fill_v(T &t,const V &v){t=v;} template<typename T,typename V> typename enable_if<is_class<T>::value!=0>::type fill_v(T &t,const V &v){for(auto &e:t) fill_v(e,v);} /* <url:> 問題文============================================================ ================================================================= 解説============================================================= ================================================================ */ template<class Type> Type solve(Type res = Type()){ int N; cin >> N; vector<ll> x(N),y(N); for(int i = 0; i < N;i++){ cin >> x[i] >> y[i]; } vector<vector<ll>> broken_time(N,vector<ll>(N)); for(int i = 0; i < N;i++){ for(int j = 0; j < N;j++){ if(i == j) broken_time[i][j] = LINF; broken_time[i][j] = (x[i]-x[j])*(x[i]-x[j]) + (y[i]-y[j])*(y[i]-y[j]); } } using Item = tuple<ll,int,int>; vector<Item> priority; for(int i = 0; i < N;i++){ for(int j = i+1; j < N;j++){ priority.emplace_back(broken_time[i][j],j,i); } } sort(priority.rbegin(),priority.rend()); vector<int> broken(N); while(priority.size()){ int l,r; tie(ignore,l,r) = priority.back(); priority.pop_back(); if(broken[l] || broken[r]) continue; if(r == 0){ broken[l] = 1; res++; }else{ broken[l] = broken[r] = 1; } } return res; } int main(void) { cin.tie(0); ios::sync_with_stdio(false); //solve<ll>(0); cout << fixed << setprecision(12) << solve<ll>() << endl; return 0; }