結果
| 問題 |
No.165 四角で囲え!
|
| コンテスト | |
| ユーザー |
kei
|
| 提出日時 | 2018-09-06 23:38:20 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 197 ms / 5,000 ms |
| コード長 | 2,808 bytes |
| コンパイル時間 | 1,907 ms |
| コンパイル使用メモリ | 178,640 KB |
| 実行使用メモリ | 5,248 KB |
| 最終ジャッジ日時 | 2024-11-24 12:07:38 |
| 合計ジャッジ時間 | 4,333 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 19 |
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/165>
問題文============================================================
=================================================================
解説=============================================================
================================================================
*/
struct Point{
ll x,y,p;
Point(ll x = 0,ll y = 0,ll p = 0):x(x),y(y),p(p){}
bool operator < (const Point& o) const{
return x<o.x;
}
};
ll solve(){
ll res = 0;
ll N,B; cin >> N >> B;
vector<Point> P(N);
vector<ll> ys(N);
for(int i = 0; i < N;i++){
ll x,y,p; cin >> x >> y >> p;
P[i] = Point(x,y,p);
ys[i] = y;
}
sort(P.begin(),P.end());
sort(ys.begin(),ys.end());
ys.erase(unique(ys.begin(),ys.end()),ys.end());
P.push_back(Point(LINF,LINF,LINF));
for(int i = 0; i < ys.size();i++){
for(int j = i; j < ys.size(); j++){
ll upper = ys[j],lower = ys[i];
ll l = 0, r = 0;
ll sum = 0;
ll pcnt = 0;
while(true){
while(r < N && sum <= B){
res = max(res,pcnt);
while(true){
if(lower <= P[r].y && P[r].y <= upper){ sum += P[r].p; pcnt++;}
r++;
if(P[r-1].x != P[r].x) break;
}
}
if(sum <= B) break;
while(true){
if(lower <= P[l].y && P[l].y <= upper){ sum -= P[l].p; pcnt--;}
l++;
if(P[l-1].x != P[l].x) break;
}
}
if(sum <= B) res = max(res,pcnt);
}
}
return res;
}
int main(void) {
cin.tie(0); ios_base::sync_with_stdio(false);
cout << solve() << endl;
return 0;
}
kei