oj.uz

Submission #106832

# Submission time Handle Problem Language Result Execution time Memory
106832 2019-04-20T16:42:45 Z polyfish New Home (APIO18_new_home) C++14
12 / 100
 5000 ms 130780 KB 
//Pantyhose(black) + glasses = infinity

#include <bits/stdc++.h>
using namespace std;

#define debug(x) cerr << #x << " = " << x << '\n';
#define BP() cerr << "OK!\n";
#define PR(A, n) {cerr << #A << " = "; for (int _=1; _<=n; ++_) cerr << A[_] << ' '; cerr << '\n';}
#define PR0(A, n) {cerr << #A << " = "; for (int _=0; _<n; ++_) cerr << A[_] << ' '; cerr << '\n';}
#define FILE_NAME "new_home"

const int MAX_N = 300002;
const int INF = 1e9+100;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

struct treap {

	struct item {
		int L, R, max_r, prior;
		item *l, *r;

		item(int L=0, int R=0): L(L), R(R) {
			max_r = R;
			prior = uniform_int_distribution<int>(1, INF)(rng);
            l = r = nullptr;
		}
	};

	typedef item * pitem;

	pitem root = nullptr;

	int get_max_r(pitem t) {
		return t ? t->max_r : -INF;
	}

	void upd(pitem t) {
		if (t)
			t->max_r = max(t->R, max(get_max_r(t->l), get_max_r(t->r)));
	}

	void split(pitem t, pitem &l, pitem &r, int key) {
		if (!t) {
			l = r = nullptr;
		}
		else {
			if (key>t->L)
				split(t->r, t->r, r, key), l = t;
			else
				split(t->l, l, t->l, key), r = t;
		}

		upd(t);
	}

	void merge(pitem &t, pitem l, pitem r) {
		if (!l || !r) {
			t = l ? l : r;
		}
		else {
			if (l->prior>r->prior)
				merge(l->r, l->r, r), t = l;
			else
				merge(r->l, l, r->l), t = r;
		}

		upd(t);
	}

	void insert(pitem &t, pitem it) {
		if (!t) {
			t = it;
		}
		else {
			if (it->prior>t->prior)
				split(t, it->l, it->r, it->L), t = it;
			else
				insert(it->L<t->L ? t->l : t->r, it);
		}

		upd(t);
	}

	void erase(pitem &t, int L, int R) {
		if (!t)
			return;

		if (t->L==L && t->R==R)
			merge(t, t->l, t->r);
		else
			erase(L<t->L ? t->l : t->r, L, R);

		upd(t);
	}

	bool get(pitem t, int L, int R) {
		if (get_max_r(t)<=R)
			return true;

		if (L<t->L)
			return get(t->l, L, R);

		return t->R<=R &&  get_max_r(t->l)<=R && get(t->r, L, R);
	}

	void insert(int L, int R) {
		insert(root, new item(L, R));
	}

	void erase(int L, int R) {
		erase(root, L, R);
	}

	bool get(int L, int R) {
		return get(root, L, R);
	}
};

struct store {
	int x, t, a, b;
};

struct query {
	int l, y;
};

int n, k, nQueries, res[MAX_N];
vector<int> T, store_event[MAX_N*3], q[MAX_N*3];
store s[MAX_N];
query Q[MAX_N];
map<int, int> pos[MAX_N*3];
treap interval_set;

int read_int() {
    char c;

    for (c = getchar(); c<'0' || c>'9'; c = getchar());

    int res = c - '0';

    for (c = getchar(); '0'<=c && c<='9'; c = getchar())
        res = res * 10 + c - '0';

    return res;
}

void read_input() {
	n = read_int();
	k = read_int();
	nQueries = read_int();

	for (int i=1; i<=n; ++i) {
        s[i].x = read_int();
        s[i].t = read_int();
        s[i].a = read_int();
        s[i].b = read_int();
	}

	for (int i=1; i<=nQueries; ++i) {
		Q[i].l = read_int();
		Q[i].y = read_int();
	}
}

void compress() {
	for (int i=1; i<=n; ++i) {
		T.push_back(s[i].a);
		T.push_back(s[i].b);
	}

	for (int i=1; i<=nQueries; ++i)
		T.push_back(Q[i].y);

	sort(T.begin(), T.end());
	T.resize(unique(T.begin(), T.end()) - T.begin());

	#define get_pos(P, x) lower_bound(P.begin(), P.end(), x) - P.begin() + 1
	for (int i=1; i<=n; ++i) {
		s[i].a = get_pos(T, s[i].a);
		s[i].b = get_pos(T, s[i].b);
	}

	for (int i=1; i<=nQueries; ++i)
		Q[i].y = get_pos(T, Q[i].y);
	#undef uniq
}

void init() {
	for (int i=1; i<=n; ++i) {
		store_event[s[i].a].push_back(i);
		store_event[s[i].b+1].push_back(-i);
	}

	for (int i=1; i<=nQueries; ++i) {
		q[Q[i].y].push_back(i);
	}

	for (int i=1; i<=k; ++i) {
		++pos[i][-INF];
		++pos[i][INF];
		interval_set.insert(-INF, INF);
	}
}

void add_store(int idx) {
	int tmp = ++pos[s[idx].t][s[idx].x];

	if (tmp==1) {
		auto u = pos[s[idx].t].lower_bound(s[idx].x);
		--u;
		auto v = pos[s[idx].t].upper_bound(s[idx].x);
//		debug(u->first);
//        debug(v->first);

		interval_set.erase(u->first, v->first);
		interval_set.insert(u->first, s[idx].x);
		interval_set.insert(s[idx].x, v->first);
	}
}

void remove_store(int idx) {
	int tmp = --pos[s[idx].t][s[idx].x];

	if (!tmp) {
		auto u = pos[s[idx].t].lower_bound(s[idx].x);
		--u;
		auto v = pos[s[idx].t].upper_bound(s[idx].x);
//        debug(u->first);
//        debug(v->first);

		interval_set.erase(u->first, s[idx].x);
		interval_set.erase(s[idx].x, v->first);
		interval_set.insert(u->first, v->first);
        pos[s[idx].t].erase(s[idx].x);
	}
}

int bisect(int x) {
	int l = 0, r = 2e8;

	for (int mid=(l+r)/2; mid!=l && r!=mid; mid=(l+r)/2) {
		if (interval_set.get(x-mid-1, x+mid))
			r = mid;
		else
			l = mid;
	}

	for (int i=l; i<=r; ++i) {
		if (interval_set.get(x-i-1, x+i))
			return i;
	}

	return -1;
}

void solve() {

	for (int i=1; i<=T.size(); ++i) {
		for (auto x : store_event[i]) {
			if (x>0)
				add_store(x);
			else
				remove_store(-x);
		}

		for (auto x : q[i])
			res[x] = bisect(Q[x].l);
	}

	for (int i=1; i<=nQueries; ++i)
		cout << res[i] << '\n';
}

int main() {
	#ifdef GLASSES_GIRL
		freopen(FILE_NAME".in", "r", stdin);
		freopen(FILE_NAME".out", "w", stdout);
	#endif
	ios::sync_with_stdio(0); cin.tie(0);

	read_input();
	compress();
	init();
	solve();
}

Compilation message

new_home.cpp: In function 'void solve()':
new_home.cpp:259:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=1; i<=T.size(); ++i) {
                ~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 84984 KB Output is correct
2 Correct 81 ms 84984 KB Output is correct
3 Correct 78 ms 84992 KB Output is correct
4 Correct 85 ms 84856 KB Output is correct
5 Correct 80 ms 84984 KB Output is correct
6 Correct 81 ms 84984 KB Output is correct
7 Correct 91 ms 85044 KB Output is correct
8 Correct 79 ms 85112 KB Output is correct
9 Correct 87 ms 85112 KB Output is correct
10 Correct 87 ms 84960 KB Output is correct
11 Correct 93 ms 85060 KB Output is correct
12 Correct 81 ms 85112 KB Output is correct
13 Correct 89 ms 84988 KB Output is correct
14 Correct 98 ms 85096 KB Output is correct
15 Correct 82 ms 84984 KB Output is correct
16 Correct 93 ms 85108 KB Output is correct
17 Correct 100 ms 84992 KB Output is correct
18 Correct 86 ms 85088 KB Output is correct
19 Correct 92 ms 85112 KB Output is correct
20 Correct 86 ms 84984 KB Output is correct
21 Correct 92 ms 85116 KB Output is correct
22 Correct 87 ms 85112 KB Output is correct
23 Correct 89 ms 85112 KB Output is correct
24 Correct 91 ms 84984 KB Output is correct
25 Correct 85 ms 84984 KB Output is correct
26 Correct 82 ms 84984 KB Output is correct
27 Correct 95 ms 84984 KB Output is correct
28 Correct 85 ms 85104 KB Output is correct
29 Correct 83 ms 84984 KB Output is correct
30 Correct 86 ms 85084 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 84984 KB Output is correct
2 Correct 81 ms 84984 KB Output is correct
3 Correct 78 ms 84992 KB Output is correct
4 Correct 85 ms 84856 KB Output is correct
5 Correct 80 ms 84984 KB Output is correct
6 Correct 81 ms 84984 KB Output is correct
7 Correct 91 ms 85044 KB Output is correct
8 Correct 79 ms 85112 KB Output is correct
9 Correct 87 ms 85112 KB Output is correct
10 Correct 87 ms 84960 KB Output is correct
11 Correct 93 ms 85060 KB Output is correct
12 Correct 81 ms 85112 KB Output is correct
13 Correct 89 ms 84988 KB Output is correct
14 Correct 98 ms 85096 KB Output is correct
15 Correct 82 ms 84984 KB Output is correct
16 Correct 93 ms 85108 KB Output is correct
17 Correct 100 ms 84992 KB Output is correct
18 Correct 86 ms 85088 KB Output is correct
19 Correct 92 ms 85112 KB Output is correct
20 Correct 86 ms 84984 KB Output is correct
21 Correct 92 ms 85116 KB Output is correct
22 Correct 87 ms 85112 KB Output is correct
23 Correct 89 ms 85112 KB Output is correct
24 Correct 91 ms 84984 KB Output is correct
25 Correct 85 ms 84984 KB Output is correct
26 Correct 82 ms 84984 KB Output is correct
27 Correct 95 ms 84984 KB Output is correct
28 Correct 85 ms 85104 KB Output is correct
29 Correct 83 ms 84984 KB Output is correct
30 Correct 86 ms 85084 KB Output is correct
31 Correct 981 ms 102012 KB Output is correct
32 Correct 127 ms 88304 KB Output is correct
33 Correct 840 ms 101484 KB Output is correct
34 Correct 912 ms 101372 KB Output is correct
35 Correct 778 ms 101840 KB Output is correct
36 Correct 812 ms 101820 KB Output is correct
37 Correct 546 ms 101344 KB Output is correct
38 Correct 491 ms 101200 KB Output is correct
39 Correct 393 ms 101476 KB Output is correct
40 Correct 443 ms 101332 KB Output is correct
41 Correct 782 ms 101316 KB Output is correct
42 Correct 1836 ms 101304 KB Output is correct
43 Correct 156 ms 89072 KB Output is correct
44 Correct 747 ms 101488 KB Output is correct
45 Correct 486 ms 101360 KB Output is correct
46 Correct 338 ms 101260 KB Output is correct
47 Correct 279 ms 100588 KB Output is correct
48 Correct 281 ms 100336 KB Output is correct
49 Correct 340 ms 100720 KB Output is correct
50 Correct 1022 ms 101084 KB Output is correct
51 Correct 308 ms 100860 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5085 ms 112828 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5072 ms 130780 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 84984 KB Output is correct
2 Correct 81 ms 84984 KB Output is correct
3 Correct 78 ms 84992 KB Output is correct
4 Correct 85 ms 84856 KB Output is correct
5 Correct 80 ms 84984 KB Output is correct
6 Correct 81 ms 84984 KB Output is correct
7 Correct 91 ms 85044 KB Output is correct
8 Correct 79 ms 85112 KB Output is correct
9 Correct 87 ms 85112 KB Output is correct
10 Correct 87 ms 84960 KB Output is correct
11 Correct 93 ms 85060 KB Output is correct
12 Correct 81 ms 85112 KB Output is correct
13 Correct 89 ms 84988 KB Output is correct
14 Correct 98 ms 85096 KB Output is correct
15 Correct 82 ms 84984 KB Output is correct
16 Correct 93 ms 85108 KB Output is correct
17 Correct 100 ms 84992 KB Output is correct
18 Correct 86 ms 85088 KB Output is correct
19 Correct 92 ms 85112 KB Output is correct
20 Correct 86 ms 84984 KB Output is correct
21 Correct 92 ms 85116 KB Output is correct
22 Correct 87 ms 85112 KB Output is correct
23 Correct 89 ms 85112 KB Output is correct
24 Correct 91 ms 84984 KB Output is correct
25 Correct 85 ms 84984 KB Output is correct
26 Correct 82 ms 84984 KB Output is correct
27 Correct 95 ms 84984 KB Output is correct
28 Correct 85 ms 85104 KB Output is correct
29 Correct 83 ms 84984 KB Output is correct
30 Correct 86 ms 85084 KB Output is correct
31 Correct 981 ms 102012 KB Output is correct
32 Correct 127 ms 88304 KB Output is correct
33 Correct 840 ms 101484 KB Output is correct
34 Correct 912 ms 101372 KB Output is correct
35 Correct 778 ms 101840 KB Output is correct
36 Correct 812 ms 101820 KB Output is correct
37 Correct 546 ms 101344 KB Output is correct
38 Correct 491 ms 101200 KB Output is correct
39 Correct 393 ms 101476 KB Output is correct
40 Correct 443 ms 101332 KB Output is correct
41 Correct 782 ms 101316 KB Output is correct
42 Correct 1836 ms 101304 KB Output is correct
43 Correct 156 ms 89072 KB Output is correct
44 Correct 747 ms 101488 KB Output is correct
45 Correct 486 ms 101360 KB Output is correct
46 Correct 338 ms 101260 KB Output is correct
47 Correct 279 ms 100588 KB Output is correct
48 Correct 281 ms 100336 KB Output is correct
49 Correct 340 ms 100720 KB Output is correct
50 Correct 1022 ms 101084 KB Output is correct
51 Correct 308 ms 100860 KB Output is correct
52 Execution timed out 5010 ms 97632 KB Time limit exceeded
53 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 84984 KB Output is correct
2 Correct 81 ms 84984 KB Output is correct
3 Correct 78 ms 84992 KB Output is correct
4 Correct 85 ms 84856 KB Output is correct
5 Correct 80 ms 84984 KB Output is correct
6 Correct 81 ms 84984 KB Output is correct
7 Correct 91 ms 85044 KB Output is correct
8 Correct 79 ms 85112 KB Output is correct
9 Correct 87 ms 85112 KB Output is correct
10 Correct 87 ms 84960 KB Output is correct
11 Correct 93 ms 85060 KB Output is correct
12 Correct 81 ms 85112 KB Output is correct
13 Correct 89 ms 84988 KB Output is correct
14 Correct 98 ms 85096 KB Output is correct
15 Correct 82 ms 84984 KB Output is correct
16 Correct 93 ms 85108 KB Output is correct
17 Correct 100 ms 84992 KB Output is correct
18 Correct 86 ms 85088 KB Output is correct
19 Correct 92 ms 85112 KB Output is correct
20 Correct 86 ms 84984 KB Output is correct
21 Correct 92 ms 85116 KB Output is correct
22 Correct 87 ms 85112 KB Output is correct
23 Correct 89 ms 85112 KB Output is correct
24 Correct 91 ms 84984 KB Output is correct
25 Correct 85 ms 84984 KB Output is correct
26 Correct 82 ms 84984 KB Output is correct
27 Correct 95 ms 84984 KB Output is correct
28 Correct 85 ms 85104 KB Output is correct
29 Correct 83 ms 84984 KB Output is correct
30 Correct 86 ms 85084 KB Output is correct
31 Correct 981 ms 102012 KB Output is correct
32 Correct 127 ms 88304 KB Output is correct
33 Correct 840 ms 101484 KB Output is correct
34 Correct 912 ms 101372 KB Output is correct
35 Correct 778 ms 101840 KB Output is correct
36 Correct 812 ms 101820 KB Output is correct
37 Correct 546 ms 101344 KB Output is correct
38 Correct 491 ms 101200 KB Output is correct
39 Correct 393 ms 101476 KB Output is correct
40 Correct 443 ms 101332 KB Output is correct
41 Correct 782 ms 101316 KB Output is correct
42 Correct 1836 ms 101304 KB Output is correct
43 Correct 156 ms 89072 KB Output is correct
44 Correct 747 ms 101488 KB Output is correct
45 Correct 486 ms 101360 KB Output is correct
46 Correct 338 ms 101260 KB Output is correct
47 Correct 279 ms 100588 KB Output is correct
48 Correct 281 ms 100336 KB Output is correct
49 Correct 340 ms 100720 KB Output is correct
50 Correct 1022 ms 101084 KB Output is correct
51 Correct 308 ms 100860 KB Output is correct
52 Execution timed out 5085 ms 112828 KB Time limit exceeded
53 Halted 0 ms 0 KB -