oj.uz

Submission #128390

# Submission time Handle Problem Language Result Execution time Memory
128390 2019-07-10T21:05:00 Z qkxwsm New Home (APIO18_new_home) C++14
47 / 100
 5000 ms 408440 KB 
#include <bits/stdc++.h>

using namespace std;

template<class T, class U>
void ckmin(T &a, U b)
{
	if (a > b) a = b;
}
template<class T, class U>
void ckmax(T &a, U b)
{
	if (a < b) a = b;
}

#define MP make_pair
#define PB push_back
#define LB lower_bound
#define UB upper_bound
#define fi first
#define se second
#define FOR(i, a, b) for (auto i = (a); i < (b); i++)
#define FORD(i, a, b) for (auto i = (a) - 1; i >= (b); i--)
#define SZ(x) ((int) ((x).size()))
#define ALL(x) (x).begin(), (x).end()
#define LIM 100000007
#define INF 1000000007
#define LLINF 2696969696969696969ll
#define MAXN 2100013

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pii> vpi;
typedef vector<pll> vpl;
typedef pair<pii, pii> ppp;
typedef pair<pii, int> ppi;

int N, K, Q, S;
vector<ppp> arr;
vector<ppi> quer;
int ans[MAXN];
multiset<int> pts[MAXN];
vector<array<int, 4> > segments;
vector<array<int, 4> > events;
map<pii, vi> cancer;
vpi seg[MAXN];

void ins(int l, int r, int t)
{
	// cerr << "ins " << l << ' ' << r << " time " << t << endl;
	l = (l + r + 1) >> 1;
	cancer[{l, r}].PB(SZ(segments));
	segments.PB({l, r, t, SZ(events)});
}
void del(int l, int r, int t)
{
	// cerr << "del " << l << ' ' << r << " time " << t << endl;
	l = (l + r + 1) >> 1;
	// cerr << "rem " << (cancer[{l, r}]).size() << endl;
	segments[cancer[{l, r}].back()][3] = t;
	cancer[{l, r}].pop_back();
}

void inseg(int w, int L, int R, int a, int b, pii p)
{
	if (a <= L && R <= b)
	{
		seg[w].PB(p);
		return;
	}
	int mid = (L + R) >> 1;
	if (a <= mid) inseg(w << 1, L, mid, a, b, p);
	if (mid < b) inseg(w << 1 | 1, mid + 1, R, a, b, p);
	return;
}
void build(int w, int L, int R)
{
	if (L != R)
	{
		int mid = (L + R) >> 1;
		build(w << 1, L, mid);
		build(w << 1 | 1, mid + 1, R);
	}
	sort(ALL(seg[w]));
	FOR(i, 1, SZ(seg[w]))
	{
		ckmax(seg[w][i].se, seg[w][i - 1].se);
	}
}
int query(int w, int L, int R, int a, int x)
{
	int res = -INF;
	int ind = UB(ALL(seg[w]), MP(x, INF)) - seg[w].begin() - 1;
	if (ind != -1) res = -x + seg[w][ind].se;
	if (L == R) return res;
	int mid = (L + R) >> 1;
	if (a <= mid) ckmax(res, query(w << 1, L, mid, a, x));
	else ckmax(res, query(w << 1 | 1, mid + 1, R, a, x));
	return res;
}

void solve()
{
	//consider distnace functions with negative slope ONLY.
	//arr: something of type t and position p in times (t1, t2)
	//quer: query of position p at time t, qid i
	FOR(i, 0, (1 << (33 - __builtin_clz(SZ(events)))))
	{
		seg[i].clear();
	}
	events.clear();
	cancer.clear();
	segments.clear();
	FOR(i, 0, K) pts[i].clear();
	FOR(i, 0, SZ(arr))
	{
		int t1 = arr[i].se.fi, t2 = arr[i].se.se, ty = arr[i].fi.fi, x = arr[i].fi.se;
		events.PB({t1, -1, ty, x});
		events.PB({t2, 1, ty, x});
	}
	FOR(i, 0, SZ(quer))
	{
		int t = quer[i].fi.se, x = quer[i].fi.fi, qid = quer[i].se;
		events.PB({t, 0, qid, x});
	}
	sort(ALL(events));
	FOR(i, 0, K)
	{
		pts[i].insert(2 * LIM);
		pts[i].insert(-2 * LIM);
		ins(-2 * LIM, 2 * LIM, 0);
	}
	FOR(i, 0, SZ(events))
	{
		int typ = events[i][2], pos = events[i][3];
		if (events[i][1] == -1)
		{
			auto it = pts[typ].UB(pos);
			int rt = *it, lt = *prev(it);
			pts[typ].insert(pos);
			//then between lt and rt you generate some new segments!
			//at time i you have to erase a segment! and then insert two new segments!
			//WARNING: IF NOT DISTINCT, PLEASE CHECK THIS PLACE
			ins(lt, pos, i + 1);
			ins(pos, rt, i + 1);
			del(lt, rt, i + 1);
		}
		if (events[i][1] == 1)
		{
			pts[typ].erase(pts[typ].find(pos));
			auto it = pts[typ].UB(pos);
			int rt = *it, lt = *prev(it);
			del(lt, pos, i + 1);
			del(pos, rt, i + 1);
			ins(lt, rt, i + 1);
		}
	}
	FOR(i, 0, SZ(segments))
	{
		int l = segments[i][2], r = segments[i][3];
		inseg(1, 0, SZ(events), l, r, {segments[i][0], segments[i][1]});
	}
	//ok cool we have the segments
	build(1, 0, SZ(events));
	FOR(i, 0, SZ(events))
	{
		if (events[i][1] == 0)
		{
			int qid = events[i][2], pos = events[i][3];
			ckmax(ans[qid], query(1, 0, SZ(events), i + 1, pos));
			// cerr << "ans " << qid << ' ' << ans[qid] << endl;
		}
	}
}
bool cmp(ppi a, ppi b)
{
	return a.fi.se < b.fi.se;
}

int32_t main()
{
	if (fopen("file.in", "r"))
	{
		freopen("file.in", "r", stdin);
	}
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> N >> K >> Q;
	arr.resize(N); quer.resize(Q);
	FOR(i, 0, N)
	{
		cin >> arr[i].fi.se >> arr[i].fi.fi >> arr[i].se.fi >> arr[i].se.se;
		arr[i].fi.fi--;
	}
	sort(ALL(arr));
	FOR(i, 0, Q)
	{
		cin >> quer[i].fi.fi >> quer[i].fi.se; quer[i].se = i;
	}
	sort(ALL(quer), cmp);
	solve();
	FOR(i, 0, N)
	{
		arr[i].fi.se = 100000001 - arr[i].fi.se;
	}
	FOR(i, 0, Q)
	{
		quer[i].fi.fi = 100000001 - quer[i].fi.fi;
	}
	solve();
	//events: OPEN/CLOSE a store at time t, position p, type x, ASK at time t, position p
	FOR(i, 0, Q)
	{
		if (ans[i] >= LIM)
		{
			cout << "-1\n";
			continue;
		}
		// cerr << "ans " << ans[i] << endl;
		cout << ans[i] << '\n';
	}
	return 0;
}

Compilation message

new_home.cpp: In function 'int32_t main()':
new_home.cpp:188:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen("file.in", "r", stdin);
   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 148472 KB Output is correct
2 Correct 140 ms 148344 KB Output is correct
3 Correct 141 ms 148344 KB Output is correct
4 Correct 141 ms 148344 KB Output is correct
5 Correct 146 ms 148536 KB Output is correct
6 Correct 149 ms 148736 KB Output is correct
7 Correct 143 ms 148600 KB Output is correct
8 Correct 145 ms 148600 KB Output is correct
9 Correct 164 ms 148696 KB Output is correct
10 Correct 154 ms 148660 KB Output is correct
11 Correct 153 ms 148600 KB Output is correct
12 Correct 146 ms 148644 KB Output is correct
13 Correct 160 ms 148600 KB Output is correct
14 Correct 163 ms 148600 KB Output is correct
15 Correct 146 ms 148616 KB Output is correct
16 Correct 149 ms 148828 KB Output is correct
17 Correct 144 ms 148748 KB Output is correct
18 Correct 145 ms 148604 KB Output is correct
19 Correct 156 ms 148676 KB Output is correct
20 Correct 154 ms 148720 KB Output is correct
21 Correct 152 ms 148580 KB Output is correct
22 Correct 145 ms 148604 KB Output is correct
23 Correct 152 ms 148728 KB Output is correct
24 Correct 156 ms 148828 KB Output is correct
25 Correct 143 ms 148600 KB Output is correct
26 Correct 165 ms 148572 KB Output is correct
27 Correct 144 ms 148472 KB Output is correct
28 Correct 142 ms 148664 KB Output is correct
29 Correct 141 ms 148528 KB Output is correct
30 Correct 145 ms 148540 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 148472 KB Output is correct
2 Correct 140 ms 148344 KB Output is correct
3 Correct 141 ms 148344 KB Output is correct
4 Correct 141 ms 148344 KB Output is correct
5 Correct 146 ms 148536 KB Output is correct
6 Correct 149 ms 148736 KB Output is correct
7 Correct 143 ms 148600 KB Output is correct
8 Correct 145 ms 148600 KB Output is correct
9 Correct 164 ms 148696 KB Output is correct
10 Correct 154 ms 148660 KB Output is correct
11 Correct 153 ms 148600 KB Output is correct
12 Correct 146 ms 148644 KB Output is correct
13 Correct 160 ms 148600 KB Output is correct
14 Correct 163 ms 148600 KB Output is correct
15 Correct 146 ms 148616 KB Output is correct
16 Correct 149 ms 148828 KB Output is correct
17 Correct 144 ms 148748 KB Output is correct
18 Correct 145 ms 148604 KB Output is correct
19 Correct 156 ms 148676 KB Output is correct
20 Correct 154 ms 148720 KB Output is correct
21 Correct 152 ms 148580 KB Output is correct
22 Correct 145 ms 148604 KB Output is correct
23 Correct 152 ms 148728 KB Output is correct
24 Correct 156 ms 148828 KB Output is correct
25 Correct 143 ms 148600 KB Output is correct
26 Correct 165 ms 148572 KB Output is correct
27 Correct 144 ms 148472 KB Output is correct
28 Correct 142 ms 148664 KB Output is correct
29 Correct 141 ms 148528 KB Output is correct
30 Correct 145 ms 148540 KB Output is correct
31 Correct 1892 ms 206224 KB Output is correct
32 Correct 515 ms 171748 KB Output is correct
33 Correct 1870 ms 204628 KB Output is correct
34 Correct 1772 ms 205056 KB Output is correct
35 Correct 1986 ms 206132 KB Output is correct
36 Correct 1877 ms 205320 KB Output is correct
37 Correct 1257 ms 200584 KB Output is correct
38 Correct 1235 ms 200448 KB Output is correct
39 Correct 929 ms 193596 KB Output is correct
40 Correct 1010 ms 195292 KB Output is correct
41 Correct 1380 ms 199092 KB Output is correct
42 Correct 1319 ms 199432 KB Output is correct
43 Correct 470 ms 175684 KB Output is correct
44 Correct 1245 ms 198708 KB Output is correct
45 Correct 1164 ms 194884 KB Output is correct
46 Correct 1002 ms 188804 KB Output is correct
47 Correct 696 ms 186340 KB Output is correct
48 Correct 663 ms 184964 KB Output is correct
49 Correct 828 ms 189984 KB Output is correct
50 Correct 999 ms 196952 KB Output is correct
51 Correct 787 ms 188232 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5112 ms 405900 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 5096 ms 408440 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 148472 KB Output is correct
2 Correct 140 ms 148344 KB Output is correct
3 Correct 141 ms 148344 KB Output is correct
4 Correct 141 ms 148344 KB Output is correct
5 Correct 146 ms 148536 KB Output is correct
6 Correct 149 ms 148736 KB Output is correct
7 Correct 143 ms 148600 KB Output is correct
8 Correct 145 ms 148600 KB Output is correct
9 Correct 164 ms 148696 KB Output is correct
10 Correct 154 ms 148660 KB Output is correct
11 Correct 153 ms 148600 KB Output is correct
12 Correct 146 ms 148644 KB Output is correct
13 Correct 160 ms 148600 KB Output is correct
14 Correct 163 ms 148600 KB Output is correct
15 Correct 146 ms 148616 KB Output is correct
16 Correct 149 ms 148828 KB Output is correct
17 Correct 144 ms 148748 KB Output is correct
18 Correct 145 ms 148604 KB Output is correct
19 Correct 156 ms 148676 KB Output is correct
20 Correct 154 ms 148720 KB Output is correct
21 Correct 152 ms 148580 KB Output is correct
22 Correct 145 ms 148604 KB Output is correct
23 Correct 152 ms 148728 KB Output is correct
24 Correct 156 ms 148828 KB Output is correct
25 Correct 143 ms 148600 KB Output is correct
26 Correct 165 ms 148572 KB Output is correct
27 Correct 144 ms 148472 KB Output is correct
28 Correct 142 ms 148664 KB Output is correct
29 Correct 141 ms 148528 KB Output is correct
30 Correct 145 ms 148540 KB Output is correct
31 Correct 1892 ms 206224 KB Output is correct
32 Correct 515 ms 171748 KB Output is correct
33 Correct 1870 ms 204628 KB Output is correct
34 Correct 1772 ms 205056 KB Output is correct
35 Correct 1986 ms 206132 KB Output is correct
36 Correct 1877 ms 205320 KB Output is correct
37 Correct 1257 ms 200584 KB Output is correct
38 Correct 1235 ms 200448 KB Output is correct
39 Correct 929 ms 193596 KB Output is correct
40 Correct 1010 ms 195292 KB Output is correct
41 Correct 1380 ms 199092 KB Output is correct
42 Correct 1319 ms 199432 KB Output is correct
43 Correct 470 ms 175684 KB Output is correct
44 Correct 1245 ms 198708 KB Output is correct
45 Correct 1164 ms 194884 KB Output is correct
46 Correct 1002 ms 188804 KB Output is correct
47 Correct 696 ms 186340 KB Output is correct
48 Correct 663 ms 184964 KB Output is correct
49 Correct 828 ms 189984 KB Output is correct
50 Correct 999 ms 196952 KB Output is correct
51 Correct 787 ms 188232 KB Output is correct
52 Correct 1502 ms 211876 KB Output is correct
53 Correct 1328 ms 204780 KB Output is correct
54 Correct 1880 ms 206772 KB Output is correct
55 Correct 1456 ms 204976 KB Output is correct
56 Correct 1363 ms 207288 KB Output is correct
57 Correct 1345 ms 200976 KB Output is correct
58 Correct 1476 ms 204468 KB Output is correct
59 Correct 1634 ms 207020 KB Output is correct
60 Correct 1433 ms 201092 KB Output is correct
61 Correct 645 ms 201892 KB Output is correct
62 Correct 1554 ms 216944 KB Output is correct
63 Correct 1798 ms 209712 KB Output is correct
64 Correct 1794 ms 208964 KB Output is correct
65 Correct 1828 ms 206992 KB Output is correct
66 Correct 1462 ms 201396 KB Output is correct
67 Correct 888 ms 183472 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 141 ms 148472 KB Output is correct
2 Correct 140 ms 148344 KB Output is correct
3 Correct 141 ms 148344 KB Output is correct
4 Correct 141 ms 148344 KB Output is correct
5 Correct 146 ms 148536 KB Output is correct
6 Correct 149 ms 148736 KB Output is correct
7 Correct 143 ms 148600 KB Output is correct
8 Correct 145 ms 148600 KB Output is correct
9 Correct 164 ms 148696 KB Output is correct
10 Correct 154 ms 148660 KB Output is correct
11 Correct 153 ms 148600 KB Output is correct
12 Correct 146 ms 148644 KB Output is correct
13 Correct 160 ms 148600 KB Output is correct
14 Correct 163 ms 148600 KB Output is correct
15 Correct 146 ms 148616 KB Output is correct
16 Correct 149 ms 148828 KB Output is correct
17 Correct 144 ms 148748 KB Output is correct
18 Correct 145 ms 148604 KB Output is correct
19 Correct 156 ms 148676 KB Output is correct
20 Correct 154 ms 148720 KB Output is correct
21 Correct 152 ms 148580 KB Output is correct
22 Correct 145 ms 148604 KB Output is correct
23 Correct 152 ms 148728 KB Output is correct
24 Correct 156 ms 148828 KB Output is correct
25 Correct 143 ms 148600 KB Output is correct
26 Correct 165 ms 148572 KB Output is correct
27 Correct 144 ms 148472 KB Output is correct
28 Correct 142 ms 148664 KB Output is correct
29 Correct 141 ms 148528 KB Output is correct
30 Correct 145 ms 148540 KB Output is correct
31 Correct 1892 ms 206224 KB Output is correct
32 Correct 515 ms 171748 KB Output is correct
33 Correct 1870 ms 204628 KB Output is correct
34 Correct 1772 ms 205056 KB Output is correct
35 Correct 1986 ms 206132 KB Output is correct
36 Correct 1877 ms 205320 KB Output is correct
37 Correct 1257 ms 200584 KB Output is correct
38 Correct 1235 ms 200448 KB Output is correct
39 Correct 929 ms 193596 KB Output is correct
40 Correct 1010 ms 195292 KB Output is correct
41 Correct 1380 ms 199092 KB Output is correct
42 Correct 1319 ms 199432 KB Output is correct
43 Correct 470 ms 175684 KB Output is correct
44 Correct 1245 ms 198708 KB Output is correct
45 Correct 1164 ms 194884 KB Output is correct
46 Correct 1002 ms 188804 KB Output is correct
47 Correct 696 ms 186340 KB Output is correct
48 Correct 663 ms 184964 KB Output is correct
49 Correct 828 ms 189984 KB Output is correct
50 Correct 999 ms 196952 KB Output is correct
51 Correct 787 ms 188232 KB Output is correct
52 Execution timed out 5112 ms 405900 KB Time limit exceeded
53 Halted 0 ms 0 KB -