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답안 #150391

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
150391 2019-09-01T08:18:13 Z 강력한 한방 필살기(#3595, gs14004, kriii, OnionPringles) 최적의 팀 구성 (FXCUP4_squad) C++17
47 / 100
 3000 ms 154180 KB 
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")


#include "squad.h"
#include <bits/stdc++.h>
#define sz(v) ((int)(v).size())
using namespace std;
using lint = long long;
const int MAXN = 300005;

struct pi{
	int first, second, idx, cnt;
	bool operator<(const pi &q)const{
		return make_pair(first, second) < make_pair(q.first, q.second);
	}
};

lint ccw(pi a, pi b, pi c){
	int dx1 = b.first - a.first;
	int dy1 = b.second - a.second;
	int dx2 = c.first - a.first;
	int dy2 = c.second - a.second;
	return 1ll * dx1 * dy2 - 1ll * dy1 * dx2;
}

struct query{
	pi V[MAXN];
	int dep[MAXN], lg[MAXN];
	int par[19][MAXN], N;
	int revloc[MAXN];
	void init(vector<pi> v){
		memset(revloc, -1, sizeof(revloc));
		N = sz(v);
		vector<int> stk;
		for(int i=0; i<sz(v); i++){
			V[i + 1] = v[i];
		}
		for(int i=1; i<=N; i++){
			while(sz(stk) >= 2 && ccw(V[stk[sz(stk) - 2]], V[stk.back()], V[i]) > 0){
				stk.pop_back();
			}
			if(sz(stk)){
				par[0][i] = stk.back();
				dep[i] = dep[par[0][i]] + 1;
			}
			stk.push_back(i);
		}
		for(int i=1; i<=N; i++){
			lg[i] = lg[i-1];
			while((2 << lg[i]) <= i) lg[i]++;
		}
		for(int i=1; i<=N; i++) revloc[V[i].idx] = i;
		for(int i=1; i<19; i++){
			for(int j=1; j<=N; j++){
				par[i][j] = par[i-1][par[i-1][j]];
			}
		}
	}
	pair<lint, int> get(int x, int y, int n){
		lint cur = -5e18;
		int cnt = 0;
		int pos = -1;
		for(int i=lg[dep[n]]; i>=0; i--){
			if(par[i][n] > 1){
				int R = par[i][n];
				int L = par[0][R];
				lint qr1 = 1ll * x * (V[L].first - V[R].first) + 1ll * y * (V[L].second - V[R].second);
				if(qr1 > 0) n = par[i][n];
			}
		}
		int it = 0;
		for(int i=n; i&& it<2; i=par[0][i]){
			it++;
			lint qr = 1ll * x * V[i].first + 1ll * y * V[i].second;
			if(qr > cur){
				cur = qr;
				cnt = 0;
				pos = V[i].idx;
			}
			if(qr == cur) cnt += V[i].cnt;
		}
		if(cnt >= 2) pos = -1;
		return make_pair(cur, pos);
	}
}XP, YP, XS, YS;

int N;
vector<pi> v, w;

vector<pi> norm(vector<pi> v){
	sort(v.begin(), v.end());
	vector<pi> w;
	for(int i=0; i<sz(v); ){
		int e = i;
		while(e < sz(v) && make_pair(v[i].first, v[i].second) == make_pair(v[e].first, v[e].second)) e++;
		w.push_back({v[i].first, v[i].second, v[i].idx, e - i});
		i = e;
	}
	return w;
}

void Init(std::vector<int> A, std::vector<int> D, std::vector<int> P){
	N = sz(A);
	for(int i=0; i<N; i++){
		v.push_back({A[i], P[i], i, 1});
		w.push_back({D[i], P[i], i, 1});
	}
	v = norm(v);
	w = norm(w);
	XP.init(v);
	YP.init(w);
	for(auto &i : v) i.first *= -1;
	for(auto &i : w) i.first *= -1;
	reverse(v.begin(), v.end());
	reverse(w.begin(), w.end());
	XS.init(v);
	YS.init(w);
}

long long BestSquad(int X, int Y){
	auto qr1 = XP.get(X, Y, XP.N);
	auto qr2 = YP.get(X, Y, YP.N);
	if(qr1.second < 0 || qr2.second < 0 || qr1.second != qr2.second) return qr1.first + qr2.first;
	lint ret = -5e18;
	ret = max(ret, qr1.first + YP.get(X, Y, YP.revloc[qr1.second] - 1).first);
	ret = max(ret, qr1.first + YS.get(-X, Y, YS.revloc[qr1.second] - 1).first);
	ret = max(ret, qr2.first + XP.get(X, Y, XP.revloc[qr1.second] - 1).first);
	ret = max(ret, qr2.first + XS.get(-X, Y, XS.revloc[qr1.second] - 1).first);
	return ret;
}

Subtask #1
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 5632 KB Output is correct
2 Correct 11 ms 6144 KB Output is correct
3 Correct 412 ms 151816 KB Output is correct
4 Correct 406 ms 151836 KB Output is correct
5 Correct 38 ms 15220 KB Output is correct
6 Correct 386 ms 151812 KB Output is correct
7 Correct 363 ms 151832 KB Output is correct
8 Correct 390 ms 151860 KB Output is correct

Subtask #2
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 5632 KB Output is correct
2 Correct 15 ms 6832 KB Output is correct
3 Correct 752 ms 154068 KB Output is correct
4 Correct 685 ms 154068 KB Output is correct
5 Correct 41 ms 11764 KB Output is correct
6 Correct 1404 ms 154068 KB Output is correct
7 Correct 1397 ms 154068 KB Output is correct
8 Correct 1329 ms 153940 KB Output is correct

Subtask #3
0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 5632 KB Output is correct
2 Correct 11 ms 6144 KB Output is correct
3 Correct 412 ms 151816 KB Output is correct
4 Correct 406 ms 151836 KB Output is correct
5 Correct 38 ms 15220 KB Output is correct
6 Correct 386 ms 151812 KB Output is correct
7 Correct 363 ms 151832 KB Output is correct
8 Correct 390 ms 151860 KB Output is correct
9 Correct 8 ms 5632 KB Output is correct
10 Correct 15 ms 6832 KB Output is correct
11 Correct 752 ms 154068 KB Output is correct
12 Correct 685 ms 154068 KB Output is correct
13 Correct 41 ms 11764 KB Output is correct
14 Correct 1404 ms 154068 KB Output is correct
15 Correct 1397 ms 154068 KB Output is correct
16 Correct 1329 ms 153940 KB Output is correct
17 Correct 92 ms 8056 KB Output is correct
18 Correct 15 ms 7168 KB Output is correct
19 Correct 608 ms 154180 KB Output is correct
20 Correct 597 ms 154092 KB Output is correct
21 Correct 133 ms 12252 KB Output is correct
22 Execution timed out 3108 ms 151812 KB Time limit exceeded
23 Halted 0 ms 0 KB -