結果
問題 | No.202 1円玉投げ |
ユーザー |
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提出日時 | 2018-09-21 02:28:48 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 429 ms / 5,000 ms |
コード長 | 2,073 bytes |
コンパイル時間 | 1,828 ms |
コンパイル使用メモリ | 174,092 KB |
実行使用メモリ | 5,632 KB |
最終ジャッジ日時 | 2024-12-22 11:33:47 |
合計ジャッジ時間 | 6,051 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 38 |
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; 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; } /* <url:https://yukicoder.me/problems/no/202> 問題文============================================================ ================================================================= 解説============================================================= ================================================================ */ const ll MAX = 20000; vector<ll> G[MAX+1]; bool check(ll X,ll Y){ for(ll x = max(0LL,X-20); x <= min(MAX,X+20);x++){ ll ind = lower_bound(G[x].begin(),G[x].end(),max(0LL,Y-20)) - G[x].begin(); while(ind < G[x].size() && G[x][ind] <= min(MAX,Y+20)){ ll y = G[x][ind]; ll absx = abs(x-X),absy = abs(y-Y); if(absx*absx+absy*absy<20*20) return false; ind++; } } return true; } ll solve(){ ll res = 0; ll N; cin >> N; while(N--){ ll X,Y; cin >> X >> Y; if(check(X,Y)){ G[X].push_back(Y); sort(G[X].begin(),G[X].end()); res++; } } return res; } int main(void) { cin.tie(0); ios_base::sync_with_stdio(false); cout << solve() << endl; return 0; }