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답안 #676619

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
676619 2022-12-31T13:03:21 Z ymm 새 집 (APIO18_new_home) C++17
45 / 100
 3135 ms 122812 KB 
#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;

#define int ll
#define pii pll

enum EventType {Rem, Add, Query};

struct Event {
	int time;
	EventType type;
	int store;
	int pos;
	int query_idx;
};

bool operator<(const Event &a, const Event &b) {
	return a.time < b.time || a.time == b.time && a.type < b.type;
}

vector<Event> evs;
vector<set<pii>> type_list;

struct Seg {
	int *t;
	int begin, end;
	
	void init(int b, int e) {
		t = new int[4 * (e-b)];
		fill(t, t + 4*(e-b), INT_MIN);
		begin = b;
		end = e;
	}
	void up_impl(int p, int x, int i, int b, int e) {
		if (e-b==1) {
			t[i] = x;
			return;
		}
		if (p < (b+e)/2)
			up_impl(p, x, 2*i+1, b, (b+e)/2);
		else
			up_impl(p, x, 2*i+2, (b+e)/2, e);
		t[i] = max(t[2*i+1], t[2*i+2]);
	}
	int get_impl(int l, int r, int i, int b, int e) {
		if (l <= b && e <= r)
			return t[i];
		if (r <= b || e <= l)
			return INT_MIN;
		return max(get_impl(l, r, 2*i+1, b, (b+e)/2),
		           get_impl(l, r, 2*i+2, (b+e)/2, e));
	}

	void up(int p, int x) { return up_impl(p, x, 0, begin, end); }
	int get(int l, int r) { return get_impl(l, r, 0, begin, end); }
} next_right;

int cnt_types, cnt_stores, cnt_queries;
vector<int> store_poses;

struct Store {
	int type;
	int pos;
	int b, e;
};
bool operator<(const Store &a, const Store &b) { return a.pos < b.pos; }
vector<Store> stores;

vector<int> ans;

void handle_add(Event ev)
{
	Store s = stores[ev.store];
	auto &list = type_list[s.type];
	auto it = list.upper_bound({s.pos, ev.store});
	int p = it == list.end()? INT_MAX: it->first;
	--it;
	next_right.up(it->second, s.pos);
	next_right.up(ev.store, p);
	list.insert({s.pos, ev.store});
}
void handle_rem(Event ev)
{
	Store s = stores[ev.store];
	auto &list = type_list[s.type];
	auto it = list.upper_bound({s.pos, ev.store});
	int p = it == list.end()? INT_MAX: it->first;
	--it; --it;
	next_right.up(it->second, p);
	next_right.up(ev.store, INT_MIN);
	list.erase({s.pos, ev.store});
}
void handle_query(Event ev)
{
	if (next_right.get(-cnt_types, 0) == INT_MAX) {
		ans[ev.query_idx] = -1;
		return;
	}
	int l = 0, r = store_poses.back();
	auto get = [&](int e) {
		e = lower_bound(store_poses.begin(), store_poses.end(), e) - store_poses.begin();
		return next_right.get(-cnt_stores, e);
	};
	while (l < r) {
		int m = (l + r)/2;
		int b = ev.pos - m, e = ev.pos + m + 1;
		if (get(b) < e)
			r = m;
		else
			l = m+1;
	}
	ans[ev.query_idx] = l;
}

signed main()
{
	cin.tie(0) -> sync_with_stdio(false);
	cin >> cnt_stores >> cnt_types >> cnt_queries;
	Loop (i,0,cnt_stores) {
		Store s;
		cin >> s.pos >> s.type >> s.b >> s.e;
		--s.pos; --s.b;
		stores.push_back(s);
		store_poses.push_back(s.pos);
	}
	sort(stores.begin(), stores.end());
	sort(store_poses.begin(), store_poses.end());
	Loop (i,0,cnt_stores) {
		evs.push_back({
			.time = stores[i].b,
			.type = Add,
			.store = i,
			.pos = stores[i].pos,
			.query_idx = -1,
		});
		evs.push_back({
			.time = stores[i].e,
			.type = Rem,
			.store = i,
			.pos = stores[i].pos,
			.query_idx = -1,
		});
	}
	Loop (i,0,cnt_queries) {
		int l, y;
		cin >> l >> y;
		--l; --y;
		evs.push_back({
			.time = y,
			.type = Query,
			.store = -1,
			.pos = l,
			.query_idx = i,
		});
	}
	sort(evs.begin(), evs.end());
	ans.resize(cnt_queries);
	type_list.resize(cnt_types+1);
	next_right.init(-cnt_types, cnt_stores);
	Loop (i,-cnt_types,0) {
		type_list[-i].insert({i, i});
		next_right.up(i, INT_MAX);
	}
	for (Event ev : evs) {
		switch (ev.type) {
		case Add:	handle_add(ev);		break;
		case Rem:	handle_rem(ev);		break;
		case Query:	handle_query(ev);	break;
		}
	}
	Loop (i,0,cnt_queries)
		cout << ans[i] << '\n';
}

Compilation message

new_home.cpp: In function 'bool operator<(const Event&, const Event&)':
new_home.cpp:23:45: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   23 |  return a.time < b.time || a.time == b.time && a.type < b.type;
      |                            ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 2 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 368 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 2 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 368 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 422 ms 16268 KB Output is correct
32 Correct 166 ms 14360 KB Output is correct
33 Correct 424 ms 14324 KB Output is correct
34 Correct 411 ms 14300 KB Output is correct
35 Correct 434 ms 16292 KB Output is correct
36 Correct 427 ms 16196 KB Output is correct
37 Correct 370 ms 14324 KB Output is correct
38 Correct 400 ms 14332 KB Output is correct
39 Correct 337 ms 14324 KB Output is correct
40 Correct 356 ms 14352 KB Output is correct
41 Correct 285 ms 14324 KB Output is correct
42 Correct 225 ms 14324 KB Output is correct
43 Correct 234 ms 16408 KB Output is correct
44 Correct 285 ms 14392 KB Output is correct
45 Correct 315 ms 14324 KB Output is correct
46 Correct 326 ms 14348 KB Output is correct
47 Correct 206 ms 14196 KB Output is correct
48 Correct 243 ms 14416 KB Output is correct
49 Correct 244 ms 14316 KB Output is correct
50 Correct 219 ms 14412 KB Output is correct
51 Correct 278 ms 14348 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1709 ms 88924 KB Output is correct
2 Correct 2439 ms 79236 KB Output is correct
3 Correct 1303 ms 122812 KB Output is correct
4 Correct 1451 ms 94616 KB Output is correct
5 Correct 2440 ms 78864 KB Output is correct
6 Correct 2481 ms 79256 KB Output is correct
7 Correct 1345 ms 122812 KB Output is correct
8 Correct 1844 ms 94640 KB Output is correct
9 Correct 2015 ms 84756 KB Output is correct
10 Correct 2471 ms 79924 KB Output is correct
11 Correct 1994 ms 78160 KB Output is correct
12 Correct 2079 ms 79512 KB Output is correct

Subtask #4
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2234 ms 80964 KB Output is correct
2 Correct 915 ms 78344 KB Output is correct
3 Correct 3042 ms 79548 KB Output is correct
4 Correct 927 ms 121044 KB Output is correct
5 Correct 952 ms 87128 KB Output is correct
6 Correct 982 ms 92744 KB Output is correct
7 Correct 2866 ms 78980 KB Output is correct
8 Correct 2896 ms 79376 KB Output is correct
9 Correct 1248 ms 122156 KB Output is correct
10 Correct 1740 ms 90568 KB Output is correct
11 Correct 2169 ms 82504 KB Output is correct
12 Correct 3135 ms 79924 KB Output is correct
13 Correct 1886 ms 77112 KB Output is correct
14 Correct 1848 ms 76200 KB Output is correct
15 Correct 2090 ms 78164 KB Output is correct
16 Correct 2195 ms 79400 KB Output is correct
17 Correct 2107 ms 77732 KB Output is correct

Subtask #5
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 2 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 368 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 422 ms 16268 KB Output is correct
32 Correct 166 ms 14360 KB Output is correct
33 Correct 424 ms 14324 KB Output is correct
34 Correct 411 ms 14300 KB Output is correct
35 Correct 434 ms 16292 KB Output is correct
36 Correct 427 ms 16196 KB Output is correct
37 Correct 370 ms 14324 KB Output is correct
38 Correct 400 ms 14332 KB Output is correct
39 Correct 337 ms 14324 KB Output is correct
40 Correct 356 ms 14352 KB Output is correct
41 Correct 285 ms 14324 KB Output is correct
42 Correct 225 ms 14324 KB Output is correct
43 Correct 234 ms 16408 KB Output is correct
44 Correct 285 ms 14392 KB Output is correct
45 Correct 315 ms 14324 KB Output is correct
46 Correct 326 ms 14348 KB Output is correct
47 Correct 206 ms 14196 KB Output is correct
48 Correct 243 ms 14416 KB Output is correct
49 Correct 244 ms 14316 KB Output is correct
50 Correct 219 ms 14412 KB Output is correct
51 Correct 278 ms 14348 KB Output is correct
52 Correct 158 ms 24412 KB Output is correct
53 Correct 151 ms 22072 KB Output is correct
54 Correct 147 ms 18700 KB Output is correct
55 Correct 311 ms 16640 KB Output is correct
56 Correct 290 ms 18732 KB Output is correct
57 Correct 293 ms 14288 KB Output is correct
58 Correct 228 ms 16608 KB Output is correct
59 Correct 211 ms 18528 KB Output is correct
60 Correct 221 ms 14380 KB Output is correct
61 Correct 117 ms 24800 KB Output is correct
62 Incorrect 182 ms 24528 KB Output isn't correct
63 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 2 ms 468 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 368 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 422 ms 16268 KB Output is correct
32 Correct 166 ms 14360 KB Output is correct
33 Correct 424 ms 14324 KB Output is correct
34 Correct 411 ms 14300 KB Output is correct
35 Correct 434 ms 16292 KB Output is correct
36 Correct 427 ms 16196 KB Output is correct
37 Correct 370 ms 14324 KB Output is correct
38 Correct 400 ms 14332 KB Output is correct
39 Correct 337 ms 14324 KB Output is correct
40 Correct 356 ms 14352 KB Output is correct
41 Correct 285 ms 14324 KB Output is correct
42 Correct 225 ms 14324 KB Output is correct
43 Correct 234 ms 16408 KB Output is correct
44 Correct 285 ms 14392 KB Output is correct
45 Correct 315 ms 14324 KB Output is correct
46 Correct 326 ms 14348 KB Output is correct
47 Correct 206 ms 14196 KB Output is correct
48 Correct 243 ms 14416 KB Output is correct
49 Correct 244 ms 14316 KB Output is correct
50 Correct 219 ms 14412 KB Output is correct
51 Correct 278 ms 14348 KB Output is correct
52 Correct 1709 ms 88924 KB Output is correct
53 Correct 2439 ms 79236 KB Output is correct
54 Correct 1303 ms 122812 KB Output is correct
55 Correct 1451 ms 94616 KB Output is correct
56 Correct 2440 ms 78864 KB Output is correct
57 Correct 2481 ms 79256 KB Output is correct
58 Correct 1345 ms 122812 KB Output is correct
59 Correct 1844 ms 94640 KB Output is correct
60 Correct 2015 ms 84756 KB Output is correct
61 Correct 2471 ms 79924 KB Output is correct
62 Correct 1994 ms 78160 KB Output is correct
63 Correct 2079 ms 79512 KB Output is correct
64 Correct 2234 ms 80964 KB Output is correct
65 Correct 915 ms 78344 KB Output is correct
66 Correct 3042 ms 79548 KB Output is correct
67 Correct 927 ms 121044 KB Output is correct
68 Correct 952 ms 87128 KB Output is correct
69 Correct 982 ms 92744 KB Output is correct
70 Correct 2866 ms 78980 KB Output is correct
71 Correct 2896 ms 79376 KB Output is correct
72 Correct 1248 ms 122156 KB Output is correct
73 Correct 1740 ms 90568 KB Output is correct
74 Correct 2169 ms 82504 KB Output is correct
75 Correct 3135 ms 79924 KB Output is correct
76 Correct 1886 ms 77112 KB Output is correct
77 Correct 1848 ms 76200 KB Output is correct
78 Correct 2090 ms 78164 KB Output is correct
79 Correct 2195 ms 79400 KB Output is correct
80 Correct 2107 ms 77732 KB Output is correct
81 Correct 158 ms 24412 KB Output is correct
82 Correct 151 ms 22072 KB Output is correct
83 Correct 147 ms 18700 KB Output is correct
84 Correct 311 ms 16640 KB Output is correct
85 Correct 290 ms 18732 KB Output is correct
86 Correct 293 ms 14288 KB Output is correct
87 Correct 228 ms 16608 KB Output is correct
88 Correct 211 ms 18528 KB Output is correct
89 Correct 221 ms 14380 KB Output is correct
90 Correct 117 ms 24800 KB Output is correct
91 Incorrect 182 ms 24528 KB Output isn't correct
92 Halted 0 ms 0 KB -