oj.uz

답안 #419886

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
419886 2021-06-07T15:45:52 Z Berted Financial Report (JOI21_financial) C++14
100 / 100
 583 ms 11440 KB 
#include <iostream>
#include <algorithm>
#include <set>
#define pii pair<int, int>
#define fst first
#define snd second

using namespace std;

const int SZ = (1 << 20) + 5;

int N, D;
int DP[300001], seg[SZ];
pii A[300001];

set<pii> S;

void upd(int idx, int L, int R, int x, int v)
{
	if (L == R) {seg[idx] = v;}
	else if (L < R)
	{
		int M = L + R >> 1;
		if (x <= M) upd(2 * idx, L, M, x, v);
		else upd(2 * idx + 1, M + 1, R, x, v);
		seg[idx] = max(seg[2 * idx], seg[2 * idx + 1]);
	}
}

int qry(int idx, int L, int R, int l, int r)
{
	l = max(L, l); r = min(R, r);
	if (l <= r)
	{
		if (L == l && R == r) return seg[idx];
		else
		{
			int M = L + R >> 1;
			return max(qry(2 * idx, L, M, l, r), qry(2 * idx + 1, M + 1, R, l, r));
		}
	}
	return 0;
}

void delet(int x)
{
	auto it = S.lower_bound({x + 1, -1});
	if (it != S.begin())
	{
		it = prev(it);
		if (it -> fst <= x && x <= it -> snd)
		{
			pii r = *it; S.erase(it);
			if (x - r.fst >= D) S.insert({r.fst, x - 1});
			if (r.snd - x >= D) S.insert({x + 1, r.snd});
		}
	}
}

int main()
{
	ios :: sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> N >> D;
	for (int i = 0; i < N; i++)
	{
		cin >> A[i].fst; A[i].snd = -(i + 1);
	}
	sort(A, A + N);

	int res = 0;
	S.insert({1, N});
	for (int i = 0; i < N; i++)
	{
		//cerr << "i: " << i << "\n";
		int id = -A[i].snd;
		delet(id);
		//cerr << "id: " << id << "\n";

		int l; auto it = S.upper_bound({id, -1});
		if (it != S.begin()) {l = prev(it) -> snd + 1;}
		else {l = 1;}

		//cerr << "l: " << l << "\n";
		DP[id] = qry(1, 1, N, l, id) + 1;
		upd(1, 1, N, id, DP[id]);
		res = max(res, DP[id]);
	}

	cout << res << "\n";
	return 0;
}

Compilation message

Main.cpp: In function 'void upd(int, int, int, int, int)':
Main.cpp:23:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 |   int M = L + R >> 1;
      |           ~~^~~
Main.cpp: In function 'int qry(int, int, int, int, int)':
Main.cpp:38:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   38 |    int M = L + R >> 1;
      |            ~~^~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 352 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 352 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 8 ms 460 KB Output is correct
42 Correct 9 ms 460 KB Output is correct
43 Correct 7 ms 460 KB Output is correct
44 Correct 6 ms 460 KB Output is correct
45 Correct 4 ms 460 KB Output is correct
46 Correct 4 ms 460 KB Output is correct
47 Correct 5 ms 460 KB Output is correct
48 Correct 6 ms 460 KB Output is correct
49 Correct 5 ms 460 KB Output is correct
50 Correct 4 ms 460 KB Output is correct
51 Correct 6 ms 468 KB Output is correct
52 Correct 7 ms 460 KB Output is correct
53 Correct 4 ms 460 KB Output is correct
54 Correct 4 ms 460 KB Output is correct
55 Correct 6 ms 468 KB Output is correct
56 Correct 4 ms 460 KB Output is correct
57 Correct 4 ms 460 KB Output is correct
58 Correct 4 ms 460 KB Output is correct
59 Correct 4 ms 460 KB Output is correct
60 Correct 4 ms 460 KB Output is correct
61 Correct 5 ms 460 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 186 ms 7808 KB Output is correct
2 Correct 311 ms 11292 KB Output is correct
3 Correct 444 ms 11416 KB Output is correct
4 Correct 583 ms 11440 KB Output is correct
5 Correct 400 ms 10396 KB Output is correct
6 Correct 542 ms 11428 KB Output is correct
7 Correct 205 ms 7892 KB Output is correct
8 Correct 189 ms 7804 KB Output is correct
9 Correct 192 ms 7880 KB Output is correct
10 Correct 212 ms 7840 KB Output is correct
11 Correct 380 ms 7972 KB Output is correct
12 Correct 424 ms 8316 KB Output is correct
13 Correct 348 ms 7900 KB Output is correct
14 Correct 413 ms 8144 KB Output is correct

Subtask #5
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 174 ms 7848 KB Output is correct
2 Correct 247 ms 7920 KB Output is correct
3 Correct 257 ms 7920 KB Output is correct
4 Correct 284 ms 7920 KB Output is correct
5 Correct 252 ms 7916 KB Output is correct
6 Correct 349 ms 7800 KB Output is correct
7 Correct 181 ms 7952 KB Output is correct
8 Correct 195 ms 7868 KB Output is correct
9 Correct 214 ms 7880 KB Output is correct
10 Correct 217 ms 7912 KB Output is correct
11 Correct 282 ms 7916 KB Output is correct
12 Correct 223 ms 7920 KB Output is correct

Subtask #6
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 352 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 332 KB Output is correct
37 Correct 1 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 8 ms 460 KB Output is correct
42 Correct 9 ms 460 KB Output is correct
43 Correct 7 ms 460 KB Output is correct
44 Correct 6 ms 460 KB Output is correct
45 Correct 4 ms 460 KB Output is correct
46 Correct 4 ms 460 KB Output is correct
47 Correct 5 ms 460 KB Output is correct
48 Correct 6 ms 460 KB Output is correct
49 Correct 5 ms 460 KB Output is correct
50 Correct 4 ms 460 KB Output is correct
51 Correct 6 ms 468 KB Output is correct
52 Correct 7 ms 460 KB Output is correct
53 Correct 4 ms 460 KB Output is correct
54 Correct 4 ms 460 KB Output is correct
55 Correct 6 ms 468 KB Output is correct
56 Correct 4 ms 460 KB Output is correct
57 Correct 4 ms 460 KB Output is correct
58 Correct 4 ms 460 KB Output is correct
59 Correct 4 ms 460 KB Output is correct
60 Correct 4 ms 460 KB Output is correct
61 Correct 5 ms 460 KB Output is correct
62 Correct 186 ms 7808 KB Output is correct
63 Correct 311 ms 11292 KB Output is correct
64 Correct 444 ms 11416 KB Output is correct
65 Correct 583 ms 11440 KB Output is correct
66 Correct 400 ms 10396 KB Output is correct
67 Correct 542 ms 11428 KB Output is correct
68 Correct 205 ms 7892 KB Output is correct
69 Correct 189 ms 7804 KB Output is correct
70 Correct 192 ms 7880 KB Output is correct
71 Correct 212 ms 7840 KB Output is correct
72 Correct 380 ms 7972 KB Output is correct
73 Correct 424 ms 8316 KB Output is correct
74 Correct 348 ms 7900 KB Output is correct
75 Correct 413 ms 8144 KB Output is correct
76 Correct 174 ms 7848 KB Output is correct
77 Correct 247 ms 7920 KB Output is correct
78 Correct 257 ms 7920 KB Output is correct
79 Correct 284 ms 7920 KB Output is correct
80 Correct 252 ms 7916 KB Output is correct
81 Correct 349 ms 7800 KB Output is correct
82 Correct 181 ms 7952 KB Output is correct
83 Correct 195 ms 7868 KB Output is correct
84 Correct 214 ms 7880 KB Output is correct
85 Correct 217 ms 7912 KB Output is correct
86 Correct 282 ms 7916 KB Output is correct
87 Correct 223 ms 7920 KB Output is correct
88 Correct 512 ms 10080 KB Output is correct
89 Correct 476 ms 9412 KB Output is correct
90 Correct 348 ms 8464 KB Output is correct
91 Correct 260 ms 7980 KB Output is correct
92 Correct 280 ms 7876 KB Output is correct
93 Correct 244 ms 7844 KB Output is correct
94 Correct 256 ms 7828 KB Output is correct
95 Correct 438 ms 9544 KB Output is correct
96 Correct 367 ms 8520 KB Output is correct
97 Correct 323 ms 7968 KB Output is correct
98 Correct 291 ms 7944 KB Output is correct
99 Correct 311 ms 7924 KB Output is correct
100 Correct 281 ms 7924 KB Output is correct
101 Correct 219 ms 7896 KB Output is correct
102 Correct 178 ms 7836 KB Output is correct
103 Correct 188 ms 7908 KB Output is correct
104 Correct 202 ms 7880 KB Output is correct
105 Correct 214 ms 7916 KB Output is correct
106 Correct 240 ms 7828 KB Output is correct
107 Correct 261 ms 7800 KB Output is correct
108 Correct 270 ms 7920 KB Output is correct
109 Correct 317 ms 7980 KB Output is correct
110 Correct 300 ms 8148 KB Output is correct
111 Correct 304 ms 7964 KB Output is correct
112 Correct 213 ms 7892 KB Output is correct
113 Correct 275 ms 7912 KB Output is correct
114 Correct 254 ms 7924 KB Output is correct
115 Correct 164 ms 7896 KB Output is correct
116 Correct 174 ms 7832 KB Output is correct
117 Correct 187 ms 7888 KB Output is correct
118 Correct 185 ms 7876 KB Output is correct
119 Correct 247 ms 7884 KB Output is correct
120 Correct 215 ms 8004 KB Output is correct