結果
| 問題 |
No.202 1円玉投げ
|
| コンテスト | |
| ユーザー |
kei
|
| 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;
}
kei