답안 #555331

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
555331	2022-04-30T13:02:32 Z	blue	Financial Report (JOI21_financial)	C++17	100 / 100	391 ms	29872 KB

Main

#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;

using vi = vector<int>;
using pii = pair<int, int>;
#define sz(x) int(x.size())

const int mx = 300'000;

int N, D;

struct dsu
{
	vi par = vi(1+mx);
	vi st = vi(1+mx);
	vi mini = vi(1+mx);

	dsu()
	{
		for(int i = 1; i <= N; i++)
		{
			par[i] = i;
			st[i] = 1;
			mini[i] = i;
		}
	}

	int root(int u)
	{
		if(par[u] == u) return u;
		else return (par[u] = root(par[u]));
	}

	void join(int u, int v)
	{
		u = root(u);
		v = root(v);
		if(u != v)
		{
			if(st[u] < st[v]) swap(u, v);
			par[v] = u;
			st[u] += st[v];
			mini[u] = min(mini[u], mini[v]);
		}
	}
};

int Z = (1<<19);

struct segtree
{
	vi maxv = vi(2*Z, 0);

	void update(int i, int v)
	{
		i += Z;
		for(int j = i; j >= 1; j >>= 1)
			maxv[j] = max(maxv[j], v);
	}

	int rangemax(int l, int r)
	{
		int res = 0;

		l += Z;
		r += Z+1;
		while(l < r)
		{
			if(l & 1)
			{
				res = max(res, maxv[l]);
				l++;
			}

			if(r & 1)
			{
				r--;
				res = max(res, maxv[r]);
			}

			l >>= 1;
			r >>= 1;
		}

		return res;
	}
};

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	cin >> N >> D;

	vi A(1+N);
	for(int i = 1; i <= N; i++) cin >> A[i];



	vector<pii> I;
	for(int i = 1; i <= N; i++) I.push_back({A[i], -i});
	sort(I.begin(), I.end());

	int ct = 0;

	set<int> positions;

	dsu DSU;
	segtree ST;

	int res = 0;

	vi DP(1+N, 0);

	for(pii ip : I)
	{
		int i = -ip.second;

		// cerr << "i = " << i << '\n';

		auto it = positions.lower_bound(i);
		if(it != positions.end() && (*it - i) <= D)
		{
			DSU.join(i, *it);
		}

		if(it != positions.begin())
		{
			it--;
			if(i - *it <= D)
				DSU.join(i, *it);
		}

		positions.insert(i);

		int lo = DSU.mini[DSU.root(i)];

		DP[i] = 1 + ST.rangemax(lo, i-1);
		ST.update(i, DP[i]);

		res = max(res, DP[i]);

		// cerr << i << " : " << DP[i] << '\n';
	}

	cout << res << '\n';

}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:108:6: warning: unused variable 'ct' [-Wunused-variable]
  108 |  int ct = 0;
      |      ^~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7892 KB	Output is correct
2	Correct	3 ms	7892 KB	Output is correct
3	Correct	3 ms	7892 KB	Output is correct
4	Correct	3 ms	7892 KB	Output is correct
5	Correct	3 ms	7872 KB	Output is correct
6	Correct	3 ms	7892 KB	Output is correct
7	Correct	3 ms	7892 KB	Output is correct
8	Correct	4 ms	7892 KB	Output is correct
9	Correct	4 ms	7868 KB	Output is correct
10	Correct	4 ms	7868 KB	Output is correct
11	Correct	4 ms	7892 KB	Output is correct
12	Correct	3 ms	7892 KB	Output is correct
13	Correct	3 ms	7892 KB	Output is correct
14	Correct	3 ms	7892 KB	Output is correct
15	Correct	3 ms	7892 KB	Output is correct
16	Correct	3 ms	7892 KB	Output is correct
17	Correct	3 ms	7892 KB	Output is correct
18	Correct	3 ms	7892 KB	Output is correct
19	Correct	3 ms	7892 KB	Output is correct
20	Correct	4 ms	7892 KB	Output is correct
21	Correct	3 ms	7892 KB	Output is correct
22	Correct	4 ms	7892 KB	Output is correct
23	Correct	4 ms	7892 KB	Output is correct
24	Correct	3 ms	7892 KB	Output is correct
25	Correct	3 ms	7892 KB	Output is correct
26	Correct	4 ms	7868 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7892 KB	Output is correct
2	Correct	3 ms	7892 KB	Output is correct
3	Correct	3 ms	7892 KB	Output is correct
4	Correct	3 ms	7892 KB	Output is correct
5	Correct	3 ms	7872 KB	Output is correct
6	Correct	3 ms	7892 KB	Output is correct
7	Correct	3 ms	7892 KB	Output is correct
8	Correct	4 ms	7892 KB	Output is correct
9	Correct	4 ms	7868 KB	Output is correct
10	Correct	4 ms	7868 KB	Output is correct
11	Correct	4 ms	7892 KB	Output is correct
12	Correct	3 ms	7892 KB	Output is correct
13	Correct	3 ms	7892 KB	Output is correct
14	Correct	3 ms	7892 KB	Output is correct
15	Correct	3 ms	7892 KB	Output is correct
16	Correct	3 ms	7892 KB	Output is correct
17	Correct	3 ms	7892 KB	Output is correct
18	Correct	3 ms	7892 KB	Output is correct
19	Correct	3 ms	7892 KB	Output is correct
20	Correct	4 ms	7892 KB	Output is correct
21	Correct	3 ms	7892 KB	Output is correct
22	Correct	4 ms	7892 KB	Output is correct
23	Correct	4 ms	7892 KB	Output is correct
24	Correct	3 ms	7892 KB	Output is correct
25	Correct	3 ms	7892 KB	Output is correct
26	Correct	4 ms	7868 KB	Output is correct
27	Correct	4 ms	7892 KB	Output is correct
28	Correct	4 ms	7892 KB	Output is correct
29	Correct	4 ms	7876 KB	Output is correct
30	Correct	4 ms	7892 KB	Output is correct
31	Correct	4 ms	7872 KB	Output is correct
32	Correct	4 ms	7892 KB	Output is correct
33	Correct	4 ms	7892 KB	Output is correct
34	Correct	4 ms	7876 KB	Output is correct
35	Correct	4 ms	7892 KB	Output is correct
36	Correct	4 ms	7892 KB	Output is correct
37	Correct	4 ms	7892 KB	Output is correct
38	Correct	4 ms	7944 KB	Output is correct
39	Correct	4 ms	7892 KB	Output is correct
40	Correct	4 ms	7892 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7892 KB	Output is correct
2	Correct	3 ms	7892 KB	Output is correct
3	Correct	3 ms	7892 KB	Output is correct
4	Correct	3 ms	7892 KB	Output is correct
5	Correct	3 ms	7872 KB	Output is correct
6	Correct	3 ms	7892 KB	Output is correct
7	Correct	3 ms	7892 KB	Output is correct
8	Correct	4 ms	7892 KB	Output is correct
9	Correct	4 ms	7868 KB	Output is correct
10	Correct	4 ms	7868 KB	Output is correct
11	Correct	4 ms	7892 KB	Output is correct
12	Correct	3 ms	7892 KB	Output is correct
13	Correct	3 ms	7892 KB	Output is correct
14	Correct	3 ms	7892 KB	Output is correct
15	Correct	3 ms	7892 KB	Output is correct
16	Correct	3 ms	7892 KB	Output is correct
17	Correct	3 ms	7892 KB	Output is correct
18	Correct	3 ms	7892 KB	Output is correct
19	Correct	3 ms	7892 KB	Output is correct
20	Correct	4 ms	7892 KB	Output is correct
21	Correct	3 ms	7892 KB	Output is correct
22	Correct	4 ms	7892 KB	Output is correct
23	Correct	4 ms	7892 KB	Output is correct
24	Correct	3 ms	7892 KB	Output is correct
25	Correct	3 ms	7892 KB	Output is correct
26	Correct	4 ms	7868 KB	Output is correct
27	Correct	4 ms	7892 KB	Output is correct
28	Correct	4 ms	7892 KB	Output is correct
29	Correct	4 ms	7876 KB	Output is correct
30	Correct	4 ms	7892 KB	Output is correct
31	Correct	4 ms	7872 KB	Output is correct
32	Correct	4 ms	7892 KB	Output is correct
33	Correct	4 ms	7892 KB	Output is correct
34	Correct	4 ms	7876 KB	Output is correct
35	Correct	4 ms	7892 KB	Output is correct
36	Correct	4 ms	7892 KB	Output is correct
37	Correct	4 ms	7892 KB	Output is correct
38	Correct	4 ms	7944 KB	Output is correct
39	Correct	4 ms	7892 KB	Output is correct
40	Correct	4 ms	7892 KB	Output is correct
41	Correct	7 ms	8400 KB	Output is correct
42	Correct	8 ms	8352 KB	Output is correct
43	Correct	6 ms	8396 KB	Output is correct
44	Correct	8 ms	8412 KB	Output is correct
45	Correct	7 ms	8404 KB	Output is correct
46	Correct	8 ms	8404 KB	Output is correct
47	Correct	7 ms	8404 KB	Output is correct
48	Correct	7 ms	8404 KB	Output is correct
49	Correct	8 ms	8372 KB	Output is correct
50	Correct	8 ms	8400 KB	Output is correct
51	Correct	7 ms	8396 KB	Output is correct
52	Correct	8 ms	8404 KB	Output is correct
53	Correct	7 ms	8364 KB	Output is correct
54	Correct	7 ms	8404 KB	Output is correct
55	Correct	7 ms	8404 KB	Output is correct
56	Correct	7 ms	8404 KB	Output is correct
57	Correct	8 ms	8404 KB	Output is correct
58	Correct	7 ms	8404 KB	Output is correct
59	Correct	6 ms	8396 KB	Output is correct
60	Correct	7 ms	8404 KB	Output is correct
61	Correct	7 ms	8400 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	161 ms	29612 KB	Output is correct
2	Correct	157 ms	29244 KB	Output is correct
3	Correct	279 ms	29616 KB	Output is correct
4	Correct	332 ms	29644 KB	Output is correct
5	Correct	241 ms	29624 KB	Output is correct
6	Correct	321 ms	29584 KB	Output is correct
7	Correct	159 ms	29444 KB	Output is correct
8	Correct	152 ms	29496 KB	Output is correct
9	Correct	134 ms	29624 KB	Output is correct
10	Correct	128 ms	29632 KB	Output is correct
11	Correct	193 ms	29620 KB	Output is correct
12	Correct	210 ms	29692 KB	Output is correct
13	Correct	257 ms	29576 KB	Output is correct
14	Correct	322 ms	29592 KB	Output is correct

Subtask #5
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	158 ms	29872 KB	Output is correct
2	Correct	260 ms	29496 KB	Output is correct
3	Correct	325 ms	29576 KB	Output is correct
4	Correct	351 ms	29572 KB	Output is correct
5	Correct	280 ms	29672 KB	Output is correct
6	Correct	331 ms	29568 KB	Output is correct
7	Correct	164 ms	29568 KB	Output is correct
8	Correct	152 ms	29616 KB	Output is correct
9	Correct	147 ms	29492 KB	Output is correct
10	Correct	199 ms	29524 KB	Output is correct
11	Correct	336 ms	29540 KB	Output is correct
12	Correct	266 ms	29612 KB	Output is correct

Subtask #6
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7892 KB	Output is correct
2	Correct	3 ms	7892 KB	Output is correct
3	Correct	3 ms	7892 KB	Output is correct
4	Correct	3 ms	7892 KB	Output is correct
5	Correct	3 ms	7872 KB	Output is correct
6	Correct	3 ms	7892 KB	Output is correct
7	Correct	3 ms	7892 KB	Output is correct
8	Correct	4 ms	7892 KB	Output is correct
9	Correct	4 ms	7868 KB	Output is correct
10	Correct	4 ms	7868 KB	Output is correct
11	Correct	4 ms	7892 KB	Output is correct
12	Correct	3 ms	7892 KB	Output is correct
13	Correct	3 ms	7892 KB	Output is correct
14	Correct	3 ms	7892 KB	Output is correct
15	Correct	3 ms	7892 KB	Output is correct
16	Correct	3 ms	7892 KB	Output is correct
17	Correct	3 ms	7892 KB	Output is correct
18	Correct	3 ms	7892 KB	Output is correct
19	Correct	3 ms	7892 KB	Output is correct
20	Correct	4 ms	7892 KB	Output is correct
21	Correct	3 ms	7892 KB	Output is correct
22	Correct	4 ms	7892 KB	Output is correct
23	Correct	4 ms	7892 KB	Output is correct
24	Correct	3 ms	7892 KB	Output is correct
25	Correct	3 ms	7892 KB	Output is correct
26	Correct	4 ms	7868 KB	Output is correct
27	Correct	4 ms	7892 KB	Output is correct
28	Correct	4 ms	7892 KB	Output is correct
29	Correct	4 ms	7876 KB	Output is correct
30	Correct	4 ms	7892 KB	Output is correct
31	Correct	4 ms	7872 KB	Output is correct
32	Correct	4 ms	7892 KB	Output is correct
33	Correct	4 ms	7892 KB	Output is correct
34	Correct	4 ms	7876 KB	Output is correct
35	Correct	4 ms	7892 KB	Output is correct
36	Correct	4 ms	7892 KB	Output is correct
37	Correct	4 ms	7892 KB	Output is correct
38	Correct	4 ms	7944 KB	Output is correct
39	Correct	4 ms	7892 KB	Output is correct
40	Correct	4 ms	7892 KB	Output is correct
41	Correct	7 ms	8400 KB	Output is correct
42	Correct	8 ms	8352 KB	Output is correct
43	Correct	6 ms	8396 KB	Output is correct
44	Correct	8 ms	8412 KB	Output is correct
45	Correct	7 ms	8404 KB	Output is correct
46	Correct	8 ms	8404 KB	Output is correct
47	Correct	7 ms	8404 KB	Output is correct
48	Correct	7 ms	8404 KB	Output is correct
49	Correct	8 ms	8372 KB	Output is correct
50	Correct	8 ms	8400 KB	Output is correct
51	Correct	7 ms	8396 KB	Output is correct
52	Correct	8 ms	8404 KB	Output is correct
53	Correct	7 ms	8364 KB	Output is correct
54	Correct	7 ms	8404 KB	Output is correct
55	Correct	7 ms	8404 KB	Output is correct
56	Correct	7 ms	8404 KB	Output is correct
57	Correct	8 ms	8404 KB	Output is correct
58	Correct	7 ms	8404 KB	Output is correct
59	Correct	6 ms	8396 KB	Output is correct
60	Correct	7 ms	8404 KB	Output is correct
61	Correct	7 ms	8400 KB	Output is correct
62	Correct	161 ms	29612 KB	Output is correct
63	Correct	157 ms	29244 KB	Output is correct
64	Correct	279 ms	29616 KB	Output is correct
65	Correct	332 ms	29644 KB	Output is correct
66	Correct	241 ms	29624 KB	Output is correct
67	Correct	321 ms	29584 KB	Output is correct
68	Correct	159 ms	29444 KB	Output is correct
69	Correct	152 ms	29496 KB	Output is correct
70	Correct	134 ms	29624 KB	Output is correct
71	Correct	128 ms	29632 KB	Output is correct
72	Correct	193 ms	29620 KB	Output is correct
73	Correct	210 ms	29692 KB	Output is correct
74	Correct	257 ms	29576 KB	Output is correct
75	Correct	322 ms	29592 KB	Output is correct
76	Correct	158 ms	29872 KB	Output is correct
77	Correct	260 ms	29496 KB	Output is correct
78	Correct	325 ms	29576 KB	Output is correct
79	Correct	351 ms	29572 KB	Output is correct
80	Correct	280 ms	29672 KB	Output is correct
81	Correct	331 ms	29568 KB	Output is correct
82	Correct	164 ms	29568 KB	Output is correct
83	Correct	152 ms	29616 KB	Output is correct
84	Correct	147 ms	29492 KB	Output is correct
85	Correct	199 ms	29524 KB	Output is correct
86	Correct	336 ms	29540 KB	Output is correct
87	Correct	266 ms	29612 KB	Output is correct
88	Correct	303 ms	29576 KB	Output is correct
89	Correct	354 ms	29644 KB	Output is correct
90	Correct	338 ms	29604 KB	Output is correct
91	Correct	353 ms	29600 KB	Output is correct
92	Correct	230 ms	29528 KB	Output is correct
93	Correct	324 ms	29656 KB	Output is correct
94	Correct	332 ms	29604 KB	Output is correct
95	Correct	274 ms	29632 KB	Output is correct
96	Correct	305 ms	29600 KB	Output is correct
97	Correct	357 ms	29620 KB	Output is correct
98	Correct	338 ms	29656 KB	Output is correct
99	Correct	331 ms	29652 KB	Output is correct
100	Correct	330 ms	29628 KB	Output is correct
101	Correct	141 ms	29532 KB	Output is correct
102	Correct	150 ms	29636 KB	Output is correct
103	Correct	179 ms	29552 KB	Output is correct
104	Correct	181 ms	29700 KB	Output is correct
105	Correct	216 ms	29536 KB	Output is correct
106	Correct	184 ms	29624 KB	Output is correct
107	Correct	211 ms	29612 KB	Output is correct
108	Correct	307 ms	29592 KB	Output is correct
109	Correct	215 ms	29628 KB	Output is correct
110	Correct	322 ms	29628 KB	Output is correct
111	Correct	348 ms	29544 KB	Output is correct
112	Correct	214 ms	29644 KB	Output is correct
113	Correct	318 ms	29576 KB	Output is correct
114	Correct	391 ms	29572 KB	Output is correct
115	Correct	174 ms	29612 KB	Output is correct
116	Correct	179 ms	29624 KB	Output is correct
117	Correct	215 ms	29628 KB	Output is correct
118	Correct	219 ms	29580 KB	Output is correct
119	Correct	182 ms	29588 KB	Output is correct
120	Correct	177 ms	29624 KB	Output is correct

답안 #555331

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 14.0 / 14.0

Subtask #3 20.0 / 20.0

Subtask #4 12.0 / 12.0

Subtask #5 5.0 / 5.0

Subtask #6 35.0 / 35.0

Subtask #1
14.0 / 14.0

Subtask #2
14.0 / 14.0

Subtask #3
20.0 / 20.0

Subtask #4
12.0 / 12.0

Subtask #5
5.0 / 5.0

Subtask #6
35.0 / 35.0