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Submission #637979

# Submission time Handle Problem Language Result Execution time Memory
637979 2022-09-03T19:39:33 Z GusterGoose27 New Home (APIO18_new_home) C++11
47 / 100
 4500 ms 1048576 KB 
#include <bits/stdc++.h>

using namespace std;

const int MAXN = 3e5+5;
const int MAXV = 1e8;

int n, k, q;

class event {
public:
	int time;
	bool type; // 0 update, 1 query
	bool start_or_end; // 0 start, 1 end. Only for updates
	int store_type; // update only
	int pos; // both
	int id; // query
	event(int tim, bool se, int tp, int p) {
		time = tim;
		type = 0;
		start_or_end = se;
		store_type = tp;
		pos = p;
	}
	event(int tim, int p, int i) {
		type = 1;
		time = tim;
		pos = p;
		id = i;
	}
};

bool operator<(event &a, event &b) {
	return (a.time == b.time) ? (a.type < b.type) : (a.time < b.time);
}

vector<event> events;
int answs[MAXN];
int cnt[MAXN];
int num_active = 0;
multiset<int> locs[MAXN];

class stree {
public:
	int lp, rp;
	stree *l = nullptr;
	stree *r = nullptr;
	int mx;
	multiset<int> all_vals; // only for lowest level
	stree(int lv, int rv) {
		mx = 0;
		lp = lv;
		rp = rv;
	}
	int mxq(int lv, int rv) {
		if (lp > rv || rp < lv) return 0;
		if (lp >= lv && rp <= rv) return mx;
		int best = 0;
		if (l) best = max(best, l->mxq(lv, rv));
		if (r) best = max(best, r->mxq(lv, rv));
		return best;
	}
	void update(int p, int v) {
		if (lp == rp) {
			all_vals.insert(v);
			mx = *(all_vals.rbegin());
			return;
		}
		int m = (lp+rp)/2;
		if (p <= m) {
			if (!l) l = new stree(lp, m);
			l->update(p, v);
		}
		else {
			if (!r) r = new stree(m+1, rp);
			r->update(p, v);
		}
		mx = 0;
		if (l) mx = max(mx, l->mx);
		if (r) mx = max(mx, r->mx);
	}
	void deupdate(int p, int v) {
		if (lp == rp) {
			all_vals.erase(all_vals.find(v));
			if (all_vals.empty()) mx = 0;
			else mx = *(all_vals.rbegin());
			return;
		}
		int m = (lp+rp)/2;
		if (p <= m) {
			if (!l) l = new stree(lp, m);
			l->deupdate(p, v);
		}
		else {
			if (!r) r = new stree(m+1, rp);
			r->deupdate(p, v);
		}
		mx = 0;
		if (l) mx = max(mx, l->mx);
		if (r) mx = max(mx, r->mx);
	}
};

stree *ltree, *rtree;

void make(int l, int r) {
	if (l == -1 && r == -1) return;
	if (l == -1) {
		ltree->update(0, r);
		return;
	}
	if (r == -1) {
		rtree->update(MAXV, MAXV-l);
		return;
	}
	int p1 = (l+r)/2;
	int p2 = (l+r+1)/2;
	int v1 = MAXV-l;
	int v2 = r;
	ltree->update(p2, v2);
	rtree->update(p1, v1);
}

void unmake(int l, int r) {
	if (l == -1 && r == -1) return;
	if (l == -1) {
		ltree->deupdate(0, r);
		return;
	}
	if (r == -1) {
		rtree->deupdate(MAXV, MAXV-l);
		return;
	}
	int p1 = (l+r)/2;
	int p2 = (l+r+1)/2;
	int v1 = MAXV-l;
	int v2 = r;
	ltree->deupdate(p2, v2);
	rtree->deupdate(p1, v1);
}

int main() {
	ios_base::sync_with_stdio(false); cin.tie(NULL);
	cin >> n >> k >> q;
	ltree = new stree(0, MAXV);
	rtree = new stree(0, MAXV);	
	for (int i = 0; i < n; i++) {
		int x, t, a, b;
		cin >> x >> t >> a >> b; t--;
		events.push_back(event(a, 0, t, x));
		events.push_back(event(b+1, 1, t, x));
	}
	for (int i = 0; i < q; i++) {
		int x, t; cin >> x >> t;
		events.push_back(event(t, x, i));
	}
	sort(events.begin(), events.end());
	for (event ev: events) {
		if (ev.type == 0) {
			int type = ev.store_type;
			if (ev.start_or_end == 0) {
				num_active += (cnt[type] == 0);
				cnt[type]++;
				if (locs[type].find(ev.pos) != locs[type].end()) {
					locs[type].insert(ev.pos);
					continue;
				}
				auto iter = locs[type].lower_bound(ev.pos);
				int r = -1;
				int l = -1;
				if (iter != locs[type].end()) r = *iter;
				if (iter != locs[type].begin()) {
					iter--;
					l = *iter;
				}
				unmake(l, r);
				locs[type].insert(ev.pos);
				make(l, ev.pos);
				make(ev.pos, r);
			}
			else {
				cnt[type]--;
				num_active -= (cnt[type] == 0);
				locs[type].erase(locs[type].find(ev.pos));
				if (locs[type].find(ev.pos) != locs[type].end()) continue;
				auto iter = locs[type].lower_bound(ev.pos);
				int r = -1;
				int l = -1;
				if (iter != locs[type].end()) r = *iter;
				if (iter != locs[type].begin()) {
					iter--;
					l = *iter;
				}
				make(l, r);
				unmake(l, ev.pos);
				unmake(ev.pos, r);
			}
		}
		if (ev.type == 1) {
			if (num_active < k) {
				answs[ev.id] = -1;
				continue;
			}
			answs[ev.id] = max(ltree->mxq(0, ev.pos)-ev.pos, rtree->mxq(ev.pos, MAXV)-MAXV+ev.pos);
		}
	}
	for (int i = 0; i < q; i++) cout << answs[i] << "\n";
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14420 KB Output is correct
3 Correct 7 ms 14420 KB Output is correct
4 Correct 7 ms 14420 KB Output is correct
5 Correct 8 ms 14420 KB Output is correct
6 Correct 12 ms 17364 KB Output is correct
7 Correct 10 ms 14420 KB Output is correct
8 Correct 12 ms 15928 KB Output is correct
9 Correct 10 ms 14420 KB Output is correct
10 Correct 14 ms 17720 KB Output is correct
11 Correct 9 ms 15572 KB Output is correct
12 Correct 12 ms 17108 KB Output is correct
13 Correct 9 ms 14804 KB Output is correct
14 Correct 10 ms 15584 KB Output is correct
15 Correct 9 ms 15572 KB Output is correct
16 Correct 9 ms 15316 KB Output is correct
17 Correct 10 ms 15956 KB Output is correct
18 Correct 9 ms 15552 KB Output is correct
19 Correct 9 ms 15316 KB Output is correct
20 Correct 10 ms 15956 KB Output is correct
21 Correct 8 ms 14420 KB Output is correct
22 Correct 8 ms 14420 KB Output is correct
23 Correct 9 ms 15184 KB Output is correct
24 Correct 9 ms 15572 KB Output is correct
25 Correct 10 ms 16044 KB Output is correct
26 Correct 10 ms 16172 KB Output is correct
27 Correct 9 ms 14420 KB Output is correct
28 Correct 12 ms 15672 KB Output is correct
29 Correct 9 ms 15688 KB Output is correct
30 Correct 9 ms 15060 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14420 KB Output is correct
3 Correct 7 ms 14420 KB Output is correct
4 Correct 7 ms 14420 KB Output is correct
5 Correct 8 ms 14420 KB Output is correct
6 Correct 12 ms 17364 KB Output is correct
7 Correct 10 ms 14420 KB Output is correct
8 Correct 12 ms 15928 KB Output is correct
9 Correct 10 ms 14420 KB Output is correct
10 Correct 14 ms 17720 KB Output is correct
11 Correct 9 ms 15572 KB Output is correct
12 Correct 12 ms 17108 KB Output is correct
13 Correct 9 ms 14804 KB Output is correct
14 Correct 10 ms 15584 KB Output is correct
15 Correct 9 ms 15572 KB Output is correct
16 Correct 9 ms 15316 KB Output is correct
17 Correct 10 ms 15956 KB Output is correct
18 Correct 9 ms 15552 KB Output is correct
19 Correct 9 ms 15316 KB Output is correct
20 Correct 10 ms 15956 KB Output is correct
21 Correct 8 ms 14420 KB Output is correct
22 Correct 8 ms 14420 KB Output is correct
23 Correct 9 ms 15184 KB Output is correct
24 Correct 9 ms 15572 KB Output is correct
25 Correct 10 ms 16044 KB Output is correct
26 Correct 10 ms 16172 KB Output is correct
27 Correct 9 ms 14420 KB Output is correct
28 Correct 12 ms 15672 KB Output is correct
29 Correct 9 ms 15688 KB Output is correct
30 Correct 9 ms 15060 KB Output is correct
31 Correct 1105 ms 344792 KB Output is correct
32 Correct 77 ms 19652 KB Output is correct
33 Correct 1134 ms 347916 KB Output is correct
34 Correct 1143 ms 329128 KB Output is correct
35 Correct 1131 ms 354044 KB Output is correct
36 Correct 1161 ms 358836 KB Output is correct
37 Correct 888 ms 340272 KB Output is correct
38 Correct 868 ms 344632 KB Output is correct
39 Correct 585 ms 332744 KB Output is correct
40 Correct 671 ms 340112 KB Output is correct
41 Correct 555 ms 186296 KB Output is correct
42 Correct 514 ms 186808 KB Output is correct
43 Correct 68 ms 21484 KB Output is correct
44 Correct 541 ms 186904 KB Output is correct
45 Correct 526 ms 187308 KB Output is correct
46 Correct 465 ms 187016 KB Output is correct
47 Correct 275 ms 149676 KB Output is correct
48 Correct 291 ms 162884 KB Output is correct
49 Correct 327 ms 176232 KB Output is correct
50 Correct 347 ms 167608 KB Output is correct
51 Correct 346 ms 180528 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4500 ms 715508 KB Output is correct
2 Runtime error 3487 ms 1048576 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 3781 ms 1048576 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14420 KB Output is correct
3 Correct 7 ms 14420 KB Output is correct
4 Correct 7 ms 14420 KB Output is correct
5 Correct 8 ms 14420 KB Output is correct
6 Correct 12 ms 17364 KB Output is correct
7 Correct 10 ms 14420 KB Output is correct
8 Correct 12 ms 15928 KB Output is correct
9 Correct 10 ms 14420 KB Output is correct
10 Correct 14 ms 17720 KB Output is correct
11 Correct 9 ms 15572 KB Output is correct
12 Correct 12 ms 17108 KB Output is correct
13 Correct 9 ms 14804 KB Output is correct
14 Correct 10 ms 15584 KB Output is correct
15 Correct 9 ms 15572 KB Output is correct
16 Correct 9 ms 15316 KB Output is correct
17 Correct 10 ms 15956 KB Output is correct
18 Correct 9 ms 15552 KB Output is correct
19 Correct 9 ms 15316 KB Output is correct
20 Correct 10 ms 15956 KB Output is correct
21 Correct 8 ms 14420 KB Output is correct
22 Correct 8 ms 14420 KB Output is correct
23 Correct 9 ms 15184 KB Output is correct
24 Correct 9 ms 15572 KB Output is correct
25 Correct 10 ms 16044 KB Output is correct
26 Correct 10 ms 16172 KB Output is correct
27 Correct 9 ms 14420 KB Output is correct
28 Correct 12 ms 15672 KB Output is correct
29 Correct 9 ms 15688 KB Output is correct
30 Correct 9 ms 15060 KB Output is correct
31 Correct 1105 ms 344792 KB Output is correct
32 Correct 77 ms 19652 KB Output is correct
33 Correct 1134 ms 347916 KB Output is correct
34 Correct 1143 ms 329128 KB Output is correct
35 Correct 1131 ms 354044 KB Output is correct
36 Correct 1161 ms 358836 KB Output is correct
37 Correct 888 ms 340272 KB Output is correct
38 Correct 868 ms 344632 KB Output is correct
39 Correct 585 ms 332744 KB Output is correct
40 Correct 671 ms 340112 KB Output is correct
41 Correct 555 ms 186296 KB Output is correct
42 Correct 514 ms 186808 KB Output is correct
43 Correct 68 ms 21484 KB Output is correct
44 Correct 541 ms 186904 KB Output is correct
45 Correct 526 ms 187308 KB Output is correct
46 Correct 465 ms 187016 KB Output is correct
47 Correct 275 ms 149676 KB Output is correct
48 Correct 291 ms 162884 KB Output is correct
49 Correct 327 ms 176232 KB Output is correct
50 Correct 347 ms 167608 KB Output is correct
51 Correct 346 ms 180528 KB Output is correct
52 Correct 175 ms 26996 KB Output is correct
53 Correct 168 ms 21684 KB Output is correct
54 Correct 532 ms 153136 KB Output is correct
55 Correct 441 ms 139176 KB Output is correct
56 Correct 439 ms 114104 KB Output is correct
57 Correct 504 ms 172276 KB Output is correct
58 Correct 496 ms 136796 KB Output is correct
59 Correct 377 ms 110740 KB Output is correct
60 Correct 541 ms 172104 KB Output is correct
61 Correct 129 ms 27308 KB Output is correct
62 Correct 170 ms 27112 KB Output is correct
63 Correct 416 ms 103404 KB Output is correct
64 Correct 509 ms 129088 KB Output is correct
65 Correct 591 ms 168476 KB Output is correct
66 Correct 551 ms 185924 KB Output is correct
67 Correct 238 ms 20268 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14420 KB Output is correct
3 Correct 7 ms 14420 KB Output is correct
4 Correct 7 ms 14420 KB Output is correct
5 Correct 8 ms 14420 KB Output is correct
6 Correct 12 ms 17364 KB Output is correct
7 Correct 10 ms 14420 KB Output is correct
8 Correct 12 ms 15928 KB Output is correct
9 Correct 10 ms 14420 KB Output is correct
10 Correct 14 ms 17720 KB Output is correct
11 Correct 9 ms 15572 KB Output is correct
12 Correct 12 ms 17108 KB Output is correct
13 Correct 9 ms 14804 KB Output is correct
14 Correct 10 ms 15584 KB Output is correct
15 Correct 9 ms 15572 KB Output is correct
16 Correct 9 ms 15316 KB Output is correct
17 Correct 10 ms 15956 KB Output is correct
18 Correct 9 ms 15552 KB Output is correct
19 Correct 9 ms 15316 KB Output is correct
20 Correct 10 ms 15956 KB Output is correct
21 Correct 8 ms 14420 KB Output is correct
22 Correct 8 ms 14420 KB Output is correct
23 Correct 9 ms 15184 KB Output is correct
24 Correct 9 ms 15572 KB Output is correct
25 Correct 10 ms 16044 KB Output is correct
26 Correct 10 ms 16172 KB Output is correct
27 Correct 9 ms 14420 KB Output is correct
28 Correct 12 ms 15672 KB Output is correct
29 Correct 9 ms 15688 KB Output is correct
30 Correct 9 ms 15060 KB Output is correct
31 Correct 1105 ms 344792 KB Output is correct
32 Correct 77 ms 19652 KB Output is correct
33 Correct 1134 ms 347916 KB Output is correct
34 Correct 1143 ms 329128 KB Output is correct
35 Correct 1131 ms 354044 KB Output is correct
36 Correct 1161 ms 358836 KB Output is correct
37 Correct 888 ms 340272 KB Output is correct
38 Correct 868 ms 344632 KB Output is correct
39 Correct 585 ms 332744 KB Output is correct
40 Correct 671 ms 340112 KB Output is correct
41 Correct 555 ms 186296 KB Output is correct
42 Correct 514 ms 186808 KB Output is correct
43 Correct 68 ms 21484 KB Output is correct
44 Correct 541 ms 186904 KB Output is correct
45 Correct 526 ms 187308 KB Output is correct
46 Correct 465 ms 187016 KB Output is correct
47 Correct 275 ms 149676 KB Output is correct
48 Correct 291 ms 162884 KB Output is correct
49 Correct 327 ms 176232 KB Output is correct
50 Correct 347 ms 167608 KB Output is correct
51 Correct 346 ms 180528 KB Output is correct
52 Correct 4500 ms 715508 KB Output is correct
53 Runtime error 3487 ms 1048576 KB Execution killed with signal 9
54 Halted 0 ms 0 KB -