oj.uz

Submission #150023

# Submission time Handle Problem Language Result Execution time Memory
150023 2019-09-01T07:34:18 Z 강력한 한방 필살기(#3595, gs14004, kriii, OnionPringles) Organizing the Best Squad (FXCUP4_squad) C++17
47 / 100
 3000 ms 149596 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 par[20][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();
			stk.push_back(i);
		}
		for(int i=1; i<=N; i++) revloc[V[i].idx] = i;
		for(int i=1; i<20; 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=19; i>=0; i--){
			if(par[i][n]){
				int R = par[i][n];
				int L = par[0][R];
				lint qr1 = 1ll * x * V[L].first + 1ll * y * V[L].second;
				lint qr2 = 1ll * x * V[R].first + 1ll * y * V[R].second;
				if(qr1 > qr2 && L){
					n = par[i][n];
				}
			}
		}
		int it = 0;
		for(int i=n; i&& it<3; 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;
	sort(v.begin(), v.end());
	for(auto &i : w) i.first *= -1;
	sort(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

# Verdict Execution time Memory Grader output
1 Correct 9 ms 5632 KB Output is correct
2 Correct 10 ms 6144 KB Output is correct
3 Correct 382 ms 147096 KB Output is correct
4 Correct 413 ms 147208 KB Output is correct
5 Correct 33 ms 14840 KB Output is correct
6 Correct 370 ms 147204 KB Output is correct
7 Correct 354 ms 147096 KB Output is correct
8 Correct 378 ms 147096 KB Output is correct

Subtask #2
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 5632 KB Output is correct
2 Correct 13 ms 6784 KB Output is correct
3 Correct 603 ms 149596 KB Output is correct
4 Correct 598 ms 149460 KB Output is correct
5 Correct 33 ms 11636 KB Output is correct
6 Correct 951 ms 149336 KB Output is correct
7 Correct 986 ms 149336 KB Output is correct
8 Correct 1027 ms 149316 KB Output is correct

Subtask #3
0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 5632 KB Output is correct
2 Correct 10 ms 6144 KB Output is correct
3 Correct 382 ms 147096 KB Output is correct
4 Correct 413 ms 147208 KB Output is correct
5 Correct 33 ms 14840 KB Output is correct
6 Correct 370 ms 147204 KB Output is correct
7 Correct 354 ms 147096 KB Output is correct
8 Correct 378 ms 147096 KB Output is correct
9 Correct 9 ms 5632 KB Output is correct
10 Correct 13 ms 6784 KB Output is correct
11 Correct 603 ms 149596 KB Output is correct
12 Correct 598 ms 149460 KB Output is correct
13 Correct 33 ms 11636 KB Output is correct
14 Correct 951 ms 149336 KB Output is correct
15 Correct 986 ms 149336 KB Output is correct
16 Correct 1027 ms 149316 KB Output is correct
17 Correct 115 ms 8056 KB Output is correct
18 Correct 14 ms 7168 KB Output is correct
19 Correct 617 ms 149464 KB Output is correct
20 Correct 596 ms 149460 KB Output is correct
21 Correct 70 ms 11996 KB Output is correct
22 Execution timed out 3107 ms 148808 KB Time limit exceeded
23 Halted 0 ms 0 KB -