oj.uz

Submission #128462

# Submission time Handle Problem Language Result Execution time Memory
128462 2019-07-11T00:49:14 Z qkxwsm New Home (APIO18_new_home) C++14
57 / 100
 5000 ms 288452 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 300013

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;
ppp arr[MAXN];
ppi quer[MAXN];
int ans[MAXN];
multiset<int> pts[MAXN];
vector<array<int, 4> > segments;
vector<array<int, 4> > events;
unordered_map<ll, vi> cancer;
vpi seg[MAXN << 2];
int iter[MAXN << 2];
vi compress;

void ins(int l, int r, int t)
{
	l = (l + r + 1) >> 1;
	cancer[1ll * INF * l + r].PB(SZ(segments));
	segments.PB({l, r, t, Q + 2});
}
void del(int l, int r, int t)
{
	l = (l + r + 1) >> 1;
	segments[cancer[1ll * INF * l + r].back()][3] = t;
	cancer[1ll * INF * l + r].pop_back();
}

void inseg(int w, int L, int R, int a, int b, pii p)
{
	if (a <= L && R <= b)
	{
		if (seg[w].empty() || p.se > seg[w].back().se) 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;
}
int query(int w, int L, int R, int a, int x)
{
	int res = -INF;
	while(iter[w] + 1 < SZ(seg[w]) && seg[w][iter[w] + 1].fi <= x)
	{
		iter[w]++;
	}
	if (iter[w] < SZ(seg[w]) && seg[w][iter[w]].fi <= x)
	{
		res = -x + seg[w][iter[w]].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()
{
	FOR(i, 0, (1 << (33 - __builtin_clz(Q + 2))) + 1)
	{
		seg[i].clear();
		iter[i] = 0;
	}
	events.clear();
	cancer.clear();
	segments.clear();
	FOR(i, 0, K) pts[i].clear();
	FOR(i, 0, N)
	{
		int t1 = arr[i].se.fi, t2 = arr[i].se.se, ty = arr[i].fi.fi, x = arr[i].fi.se;
		if (t1 == t2) continue;
		events.PB({t1, -1, ty, x});
		events.PB({t2, -2, ty, 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 t = events[i][0], 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);
			ins(lt, pos, t + 1);
			ins(pos, rt, t + 1);
			del(lt, rt, t);
		}
		if (events[i][1] == -2)
		{
			pts[typ].erase(pts[typ].find(pos));
			auto it = pts[typ].UB(pos);
			int rt = *it, lt = *prev(it);
			del(lt, pos, t);
			del(pos, rt, t);
			ins(lt, rt, t + 1);
		}
	}
	sort(ALL(segments));
	FOR(i, 0, SZ(segments))
	{
		int l = segments[i][2], r = segments[i][3];
		if (l > r) continue;
		inseg(1, 0, Q + 2, l, r, {segments[i][0], segments[i][1]});
	}
	FOR(i, 0, Q)
	{
		ckmax(ans[quer[i].se], query(1, 0, Q + 2, quer[i].fi.se + 1, quer[i].fi.fi));
	}
}
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);
		freopen("file.out", "w", stdout);
	}
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> N >> K >> 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--; arr[i].se.se++;
	}
	FOR(i, 0, Q)
	{
		cin >> quer[i].fi.fi >> quer[i].fi.se; quer[i].se = i;
		compress.PB(quer[i].fi.se);
	}
	compress.PB(INF);
	compress.PB(0);
	sort(ALL(compress)); compress.erase(unique(ALL(compress)), compress.end());
	FOR(i, 0, Q)
	{
		quer[i].fi.se = LB(ALL(compress), quer[i].fi.se) - compress.begin();
	}
	FOR(i, 0, N)
	{
		arr[i].se.fi = LB(ALL(compress), arr[i].se.fi) - compress.begin();
		arr[i].se.se = LB(ALL(compress), arr[i].se.se) - compress.begin();
	}
	sort(arr, arr + N);
	sort(quer, quer + Q);
	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;
	}
	reverse(quer, quer + Q);
	solve();
	FOR(i, 0, Q)
	{
		if (ans[i] >= LIM)
		{
			cout << "-1\n";
			continue;
		}
		cout << ans[i] << '\n';
	}
	// cerr << "time elapsed = " << clock() / ((CLOCKS_PER_SEC) / 1000) << " ms" << endl;
	return 0;
}

Compilation message

new_home.cpp: In function 'int32_t main()':
new_home.cpp:165:10: 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);
   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:166:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen("file.out", "w", stdout);
   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 42616 KB Output is correct
2 Correct 40 ms 42620 KB Output is correct
3 Correct 47 ms 42716 KB Output is correct
4 Correct 40 ms 42616 KB Output is correct
5 Correct 43 ms 42744 KB Output is correct
6 Correct 43 ms 42872 KB Output is correct
7 Correct 43 ms 42872 KB Output is correct
8 Correct 43 ms 42872 KB Output is correct
9 Correct 52 ms 42888 KB Output is correct
10 Correct 45 ms 42872 KB Output is correct
11 Correct 43 ms 42844 KB Output is correct
12 Correct 42 ms 42820 KB Output is correct
13 Correct 41 ms 42744 KB Output is correct
14 Correct 42 ms 42744 KB Output is correct
15 Correct 42 ms 42876 KB Output is correct
16 Correct 42 ms 43000 KB Output is correct
17 Correct 42 ms 42872 KB Output is correct
18 Correct 43 ms 42872 KB Output is correct
19 Correct 43 ms 42872 KB Output is correct
20 Correct 42 ms 42876 KB Output is correct
21 Correct 43 ms 42744 KB Output is correct
22 Correct 44 ms 42916 KB Output is correct
23 Correct 44 ms 42872 KB Output is correct
24 Correct 44 ms 42844 KB Output is correct
25 Correct 43 ms 42872 KB Output is correct
26 Correct 44 ms 42856 KB Output is correct
27 Correct 42 ms 42744 KB Output is correct
28 Correct 43 ms 42872 KB Output is correct
29 Correct 43 ms 42852 KB Output is correct
30 Correct 42 ms 42716 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 42616 KB Output is correct
2 Correct 40 ms 42620 KB Output is correct
3 Correct 47 ms 42716 KB Output is correct
4 Correct 40 ms 42616 KB Output is correct
5 Correct 43 ms 42744 KB Output is correct
6 Correct 43 ms 42872 KB Output is correct
7 Correct 43 ms 42872 KB Output is correct
8 Correct 43 ms 42872 KB Output is correct
9 Correct 52 ms 42888 KB Output is correct
10 Correct 45 ms 42872 KB Output is correct
11 Correct 43 ms 42844 KB Output is correct
12 Correct 42 ms 42820 KB Output is correct
13 Correct 41 ms 42744 KB Output is correct
14 Correct 42 ms 42744 KB Output is correct
15 Correct 42 ms 42876 KB Output is correct
16 Correct 42 ms 43000 KB Output is correct
17 Correct 42 ms 42872 KB Output is correct
18 Correct 43 ms 42872 KB Output is correct
19 Correct 43 ms 42872 KB Output is correct
20 Correct 42 ms 42876 KB Output is correct
21 Correct 43 ms 42744 KB Output is correct
22 Correct 44 ms 42916 KB Output is correct
23 Correct 44 ms 42872 KB Output is correct
24 Correct 44 ms 42844 KB Output is correct
25 Correct 43 ms 42872 KB Output is correct
26 Correct 44 ms 42856 KB Output is correct
27 Correct 42 ms 42744 KB Output is correct
28 Correct 43 ms 42872 KB Output is correct
29 Correct 43 ms 42852 KB Output is correct
30 Correct 42 ms 42716 KB Output is correct
31 Correct 1054 ms 80220 KB Output is correct
32 Correct 284 ms 53224 KB Output is correct
33 Correct 1099 ms 86680 KB Output is correct
34 Correct 912 ms 77792 KB Output is correct
35 Correct 1062 ms 82920 KB Output is correct
36 Correct 1252 ms 88004 KB Output is correct
37 Correct 842 ms 80868 KB Output is correct
38 Correct 825 ms 83532 KB Output is correct
39 Correct 699 ms 76564 KB Output is correct
40 Correct 705 ms 78580 KB Output is correct
41 Correct 802 ms 75384 KB Output is correct
42 Correct 818 ms 75468 KB Output is correct
43 Correct 286 ms 54120 KB Output is correct
44 Correct 752 ms 75304 KB Output is correct
45 Correct 761 ms 74376 KB Output is correct
46 Correct 632 ms 71928 KB Output is correct
47 Correct 527 ms 69896 KB Output is correct
48 Correct 506 ms 69092 KB Output is correct
49 Correct 571 ms 72164 KB Output is correct
50 Correct 648 ms 74084 KB Output is correct
51 Correct 565 ms 71360 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3532 ms 181168 KB Output is correct
2 Correct 3657 ms 175332 KB Output is correct
3 Correct 3677 ms 285884 KB Output is correct
4 Correct 3467 ms 193620 KB Output is correct
5 Correct 4027 ms 256124 KB Output is correct
6 Correct 3819 ms 189656 KB Output is correct
7 Correct 3657 ms 288452 KB Output is correct
8 Correct 3568 ms 195968 KB Output is correct
9 Correct 3454 ms 170456 KB Output is correct
10 Correct 3560 ms 160884 KB Output is correct
11 Correct 3412 ms 164528 KB Output is correct
12 Correct 3327 ms 160272 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5113 ms 194964 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 42616 KB Output is correct
2 Correct 40 ms 42620 KB Output is correct
3 Correct 47 ms 42716 KB Output is correct
4 Correct 40 ms 42616 KB Output is correct
5 Correct 43 ms 42744 KB Output is correct
6 Correct 43 ms 42872 KB Output is correct
7 Correct 43 ms 42872 KB Output is correct
8 Correct 43 ms 42872 KB Output is correct
9 Correct 52 ms 42888 KB Output is correct
10 Correct 45 ms 42872 KB Output is correct
11 Correct 43 ms 42844 KB Output is correct
12 Correct 42 ms 42820 KB Output is correct
13 Correct 41 ms 42744 KB Output is correct
14 Correct 42 ms 42744 KB Output is correct
15 Correct 42 ms 42876 KB Output is correct
16 Correct 42 ms 43000 KB Output is correct
17 Correct 42 ms 42872 KB Output is correct
18 Correct 43 ms 42872 KB Output is correct
19 Correct 43 ms 42872 KB Output is correct
20 Correct 42 ms 42876 KB Output is correct
21 Correct 43 ms 42744 KB Output is correct
22 Correct 44 ms 42916 KB Output is correct
23 Correct 44 ms 42872 KB Output is correct
24 Correct 44 ms 42844 KB Output is correct
25 Correct 43 ms 42872 KB Output is correct
26 Correct 44 ms 42856 KB Output is correct
27 Correct 42 ms 42744 KB Output is correct
28 Correct 43 ms 42872 KB Output is correct
29 Correct 43 ms 42852 KB Output is correct
30 Correct 42 ms 42716 KB Output is correct
31 Correct 1054 ms 80220 KB Output is correct
32 Correct 284 ms 53224 KB Output is correct
33 Correct 1099 ms 86680 KB Output is correct
34 Correct 912 ms 77792 KB Output is correct
35 Correct 1062 ms 82920 KB Output is correct
36 Correct 1252 ms 88004 KB Output is correct
37 Correct 842 ms 80868 KB Output is correct
38 Correct 825 ms 83532 KB Output is correct
39 Correct 699 ms 76564 KB Output is correct
40 Correct 705 ms 78580 KB Output is correct
41 Correct 802 ms 75384 KB Output is correct
42 Correct 818 ms 75468 KB Output is correct
43 Correct 286 ms 54120 KB Output is correct
44 Correct 752 ms 75304 KB Output is correct
45 Correct 761 ms 74376 KB Output is correct
46 Correct 632 ms 71928 KB Output is correct
47 Correct 527 ms 69896 KB Output is correct
48 Correct 506 ms 69092 KB Output is correct
49 Correct 571 ms 72164 KB Output is correct
50 Correct 648 ms 74084 KB Output is correct
51 Correct 565 ms 71360 KB Output is correct
52 Correct 936 ms 84048 KB Output is correct
53 Correct 845 ms 78928 KB Output is correct
54 Correct 1029 ms 77848 KB Output is correct
55 Correct 926 ms 79800 KB Output is correct
56 Correct 907 ms 80900 KB Output is correct
57 Correct 829 ms 76684 KB Output is correct
58 Correct 885 ms 77540 KB Output is correct
59 Correct 826 ms 78864 KB Output is correct
60 Correct 813 ms 76104 KB Output is correct
61 Correct 336 ms 60900 KB Output is correct
62 Correct 901 ms 83988 KB Output is correct
63 Correct 955 ms 81064 KB Output is correct
64 Correct 1006 ms 80304 KB Output is correct
65 Correct 967 ms 78236 KB Output is correct
66 Correct 820 ms 76204 KB Output is correct
67 Correct 341 ms 53936 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 42616 KB Output is correct
2 Correct 40 ms 42620 KB Output is correct
3 Correct 47 ms 42716 KB Output is correct
4 Correct 40 ms 42616 KB Output is correct
5 Correct 43 ms 42744 KB Output is correct
6 Correct 43 ms 42872 KB Output is correct
7 Correct 43 ms 42872 KB Output is correct
8 Correct 43 ms 42872 KB Output is correct
9 Correct 52 ms 42888 KB Output is correct
10 Correct 45 ms 42872 KB Output is correct
11 Correct 43 ms 42844 KB Output is correct
12 Correct 42 ms 42820 KB Output is correct
13 Correct 41 ms 42744 KB Output is correct
14 Correct 42 ms 42744 KB Output is correct
15 Correct 42 ms 42876 KB Output is correct
16 Correct 42 ms 43000 KB Output is correct
17 Correct 42 ms 42872 KB Output is correct
18 Correct 43 ms 42872 KB Output is correct
19 Correct 43 ms 42872 KB Output is correct
20 Correct 42 ms 42876 KB Output is correct
21 Correct 43 ms 42744 KB Output is correct
22 Correct 44 ms 42916 KB Output is correct
23 Correct 44 ms 42872 KB Output is correct
24 Correct 44 ms 42844 KB Output is correct
25 Correct 43 ms 42872 KB Output is correct
26 Correct 44 ms 42856 KB Output is correct
27 Correct 42 ms 42744 KB Output is correct
28 Correct 43 ms 42872 KB Output is correct
29 Correct 43 ms 42852 KB Output is correct
30 Correct 42 ms 42716 KB Output is correct
31 Correct 1054 ms 80220 KB Output is correct
32 Correct 284 ms 53224 KB Output is correct
33 Correct 1099 ms 86680 KB Output is correct
34 Correct 912 ms 77792 KB Output is correct
35 Correct 1062 ms 82920 KB Output is correct
36 Correct 1252 ms 88004 KB Output is correct
37 Correct 842 ms 80868 KB Output is correct
38 Correct 825 ms 83532 KB Output is correct
39 Correct 699 ms 76564 KB Output is correct
40 Correct 705 ms 78580 KB Output is correct
41 Correct 802 ms 75384 KB Output is correct
42 Correct 818 ms 75468 KB Output is correct
43 Correct 286 ms 54120 KB Output is correct
44 Correct 752 ms 75304 KB Output is correct
45 Correct 761 ms 74376 KB Output is correct
46 Correct 632 ms 71928 KB Output is correct
47 Correct 527 ms 69896 KB Output is correct
48 Correct 506 ms 69092 KB Output is correct
49 Correct 571 ms 72164 KB Output is correct
50 Correct 648 ms 74084 KB Output is correct
51 Correct 565 ms 71360 KB Output is correct
52 Correct 3532 ms 181168 KB Output is correct
53 Correct 3657 ms 175332 KB Output is correct
54 Correct 3677 ms 285884 KB Output is correct
55 Correct 3467 ms 193620 KB Output is correct
56 Correct 4027 ms 256124 KB Output is correct
57 Correct 3819 ms 189656 KB Output is correct
58 Correct 3657 ms 288452 KB Output is correct
59 Correct 3568 ms 195968 KB Output is correct
60 Correct 3454 ms 170456 KB Output is correct
61 Correct 3560 ms 160884 KB Output is correct
62 Correct 3412 ms 164528 KB Output is correct
63 Correct 3327 ms 160272 KB Output is correct
64 Execution timed out 5113 ms 194964 KB Time limit exceeded
65 Halted 0 ms 0 KB -