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답안 #544597

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
544597 2022-04-02T13:22:53 Z sidon Team Contest (JOI22_team) C++17
100 / 100
 1962 ms 278544 KB 
#include <bits/stdc++.h>
using namespace std;
#define maxim(X, Y) (X = max(X, Y))
#define all(X) begin(X), end(X)

const int INF = 2e9+5;

struct Fenwick {
	int n, *a;
	Fenwick(int N) : n(N), a(new int[N+1]) {
		fill(a, a + N + 1, -INF);
	}
	void upd(int i, int v) {
		for(++i; i <= n; i += i&-i) maxim(a[i], v);
	}
	int qry(int i) {
		int v = -INF;
		for(++i; i >= 1; i -= i&-i) maxim(v, a[i]);
		return v;
	}
};

int sI, sV;
struct ST {
#define m ((l + r) / 2)
	int v;
	ST *L = NULL, *R = NULL;
	ST() : v(-INF) {};
	void upd(int i, int val) {
		sI = i, sV = val;
		_upd(0, 1<<18);
	}
	void _upd(int l, int  r) {
		maxim(v, sV);
		if(r - l > 1) {
			if(sI < m) (L ? : L = new ST)->_upd(l, m);
			if(sI >=m) (R ? : R = new ST)->_upd(m, r);
		}
	}
	int qry(int i) {
		sI = i + 1, sV = -INF;
		return qry(0, 1<<18), sV;
	}
	void qry(int l, int r) {
		if(r <= sI) return void(maxim(sV, v));
		if(l < sI) {
			if(L) L->qry(l, m);
			if(R) R->qry(m, r);
		}
	}
};

struct BIT {
	int n;
	vector<ST*> a;
	BIT(int N) : n(N), a(N+1) {
		for(auto &i : a) i = new ST;
	}
	void update(int i, int j, int v) {
		for(++i; i <= n; i += i&-i) a[i]->upd(j, v);
	}
	int query(int i, int j) {
		sI = j + 1, sV = -INF;
		for(++i; i >= 1; i -= i&-i) a[i]->qry(0, 1<<18);
		return sV;
	}
};

int main() {
	ios::sync_with_stdio(0), cin.tie(0);

	int N; cin >> N;
	array<int, 3> a[N];
	vector<int> C[2];
	array<int, 2> sz, c[N];

	for(auto &[x, y, z] : a) {
		cin >> x >> y >> z;
		C[0].push_back(x);
		C[1].push_back(y);
	}
	Fenwick *f[2];

	for(int i = 0; i < 2; ++i) {
		sort(all(C[i]));
		C[i].erase(unique(all(C[i])), end(C[i]));
		f[i] = new Fenwick(sz[i] = size(C[i]));
	}

	sort(a, a + N, [&](const auto &i, const auto &j) {
		return i[2] < j[2];
	});

	BIT b(sz[0]);

	for(int i = 0; i < N; ++i)
		for(int k = 0; k < 2; ++k)
			c[i][k] = sz[k] - 1 - (lower_bound(all(C[k]), a[i][k]) - begin(C[k]));

	int ans = -INF;

	for(int l = 0, r; l < N; l = r) {
		for(r = l + 1; r < N && a[l][2] == a[r][2]; ++r);

		for(int i = l; i < r; ++i)
			maxim(ans, a[i][2] + b.query(c[i][0] - 1, c[i][1] - 1));

		for(int i = l; i < r; ++i) {
			int j = f[0]->qry(sz[0] - 2 - c[i][0]);
			if(j > sz[1] - 1 - c[i][1])
				b.update(c[i][0], sz[1] - 1 - j, a[i][0] + C[1][j]);

			j = f[1]->qry(sz[1] - 2 - c[i][1]);
			if(j > sz[0] - 1 - c[i][0])
				b.update(sz[0] - 1 - j, c[i][1], a[i][1] + C[0][j]);

			for(int k = 0; k < 2; ++k)
				f[k]->upd(sz[k] - 1 - c[i][k], sz[!k] - 1 - c[i][!k]);
		}
	}

	cout << max(ans, int(-1));
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 2 ms 596 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct

Subtask #2
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 2 ms 596 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 19 ms 5848 KB Output is correct
27 Correct 14 ms 3276 KB Output is correct
28 Correct 11 ms 2772 KB Output is correct
29 Correct 8 ms 1732 KB Output is correct
30 Correct 7 ms 1876 KB Output is correct
31 Correct 12 ms 1748 KB Output is correct
32 Correct 5 ms 980 KB Output is correct
33 Correct 5 ms 468 KB Output is correct
34 Correct 3 ms 596 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 2 ms 468 KB Output is correct
38 Correct 4 ms 468 KB Output is correct
39 Correct 3 ms 340 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 216 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 91 ms 5000 KB Output is correct
12 Correct 41 ms 3280 KB Output is correct
13 Correct 36 ms 3896 KB Output is correct
14 Correct 72 ms 4980 KB Output is correct
15 Correct 50 ms 4944 KB Output is correct
16 Correct 39 ms 4940 KB Output is correct

Subtask #4
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 216 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 91 ms 5000 KB Output is correct
12 Correct 41 ms 3280 KB Output is correct
13 Correct 36 ms 3896 KB Output is correct
14 Correct 72 ms 4980 KB Output is correct
15 Correct 50 ms 4944 KB Output is correct
16 Correct 39 ms 4940 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 3 ms 396 KB Output is correct
22 Correct 177 ms 4964 KB Output is correct
23 Correct 124 ms 4928 KB Output is correct
24 Correct 78 ms 3500 KB Output is correct
25 Correct 90 ms 5020 KB Output is correct
26 Correct 66 ms 5128 KB Output is correct

Subtask #5
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 216 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 91 ms 5000 KB Output is correct
12 Correct 41 ms 3280 KB Output is correct
13 Correct 36 ms 3896 KB Output is correct
14 Correct 72 ms 4980 KB Output is correct
15 Correct 50 ms 4944 KB Output is correct
16 Correct 39 ms 4940 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 3 ms 396 KB Output is correct
22 Correct 177 ms 4964 KB Output is correct
23 Correct 124 ms 4928 KB Output is correct
24 Correct 78 ms 3500 KB Output is correct
25 Correct 90 ms 5020 KB Output is correct
26 Correct 66 ms 5128 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 5 ms 980 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 316 ms 4844 KB Output is correct
35 Correct 231 ms 5924 KB Output is correct
36 Correct 225 ms 6572 KB Output is correct
37 Correct 168 ms 7008 KB Output is correct
38 Correct 113 ms 4836 KB Output is correct
39 Correct 34 ms 3060 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 216 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 91 ms 5000 KB Output is correct
12 Correct 41 ms 3280 KB Output is correct
13 Correct 36 ms 3896 KB Output is correct
14 Correct 72 ms 4980 KB Output is correct
15 Correct 50 ms 4944 KB Output is correct
16 Correct 39 ms 4940 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 3 ms 396 KB Output is correct
22 Correct 177 ms 4964 KB Output is correct
23 Correct 124 ms 4928 KB Output is correct
24 Correct 78 ms 3500 KB Output is correct
25 Correct 90 ms 5020 KB Output is correct
26 Correct 66 ms 5128 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 5 ms 980 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 316 ms 4844 KB Output is correct
35 Correct 231 ms 5924 KB Output is correct
36 Correct 225 ms 6572 KB Output is correct
37 Correct 168 ms 7008 KB Output is correct
38 Correct 113 ms 4836 KB Output is correct
39 Correct 34 ms 3060 KB Output is correct
40 Correct 6 ms 1876 KB Output is correct
41 Correct 12 ms 1792 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 3 ms 468 KB Output is correct
44 Correct 567 ms 11020 KB Output is correct
45 Correct 293 ms 35040 KB Output is correct
46 Correct 286 ms 29272 KB Output is correct
47 Correct 250 ms 35896 KB Output is correct
48 Correct 131 ms 4952 KB Output is correct

Subtask #7
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 2 ms 596 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 2 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 19 ms 5848 KB Output is correct
27 Correct 14 ms 3276 KB Output is correct
28 Correct 11 ms 2772 KB Output is correct
29 Correct 8 ms 1732 KB Output is correct
30 Correct 7 ms 1876 KB Output is correct
31 Correct 12 ms 1748 KB Output is correct
32 Correct 5 ms 980 KB Output is correct
33 Correct 5 ms 468 KB Output is correct
34 Correct 3 ms 596 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 2 ms 468 KB Output is correct
38 Correct 4 ms 468 KB Output is correct
39 Correct 3 ms 340 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 1 ms 212 KB Output is correct
42 Correct 0 ms 216 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 0 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 1 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 0 ms 212 KB Output is correct
50 Correct 91 ms 5000 KB Output is correct
51 Correct 41 ms 3280 KB Output is correct
52 Correct 36 ms 3896 KB Output is correct
53 Correct 72 ms 4980 KB Output is correct
54 Correct 50 ms 4944 KB Output is correct
55 Correct 39 ms 4940 KB Output is correct
56 Correct 1 ms 212 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 0 ms 212 KB Output is correct
59 Correct 1 ms 340 KB Output is correct
60 Correct 3 ms 396 KB Output is correct
61 Correct 177 ms 4964 KB Output is correct
62 Correct 124 ms 4928 KB Output is correct
63 Correct 78 ms 3500 KB Output is correct
64 Correct 90 ms 5020 KB Output is correct
65 Correct 66 ms 5128 KB Output is correct
66 Correct 1 ms 468 KB Output is correct
67 Correct 1 ms 340 KB Output is correct
68 Correct 1 ms 212 KB Output is correct
69 Correct 1 ms 212 KB Output is correct
70 Correct 5 ms 980 KB Output is correct
71 Correct 1 ms 340 KB Output is correct
72 Correct 1 ms 340 KB Output is correct
73 Correct 316 ms 4844 KB Output is correct
74 Correct 231 ms 5924 KB Output is correct
75 Correct 225 ms 6572 KB Output is correct
76 Correct 168 ms 7008 KB Output is correct
77 Correct 113 ms 4836 KB Output is correct
78 Correct 34 ms 3060 KB Output is correct
79 Correct 6 ms 1876 KB Output is correct
80 Correct 12 ms 1792 KB Output is correct
81 Correct 2 ms 468 KB Output is correct
82 Correct 3 ms 468 KB Output is correct
83 Correct 567 ms 11020 KB Output is correct
84 Correct 293 ms 35040 KB Output is correct
85 Correct 286 ms 29272 KB Output is correct
86 Correct 250 ms 35896 KB Output is correct
87 Correct 131 ms 4952 KB Output is correct
88 Correct 1962 ms 278544 KB Output is correct
89 Correct 713 ms 108508 KB Output is correct
90 Correct 1314 ms 144196 KB Output is correct
91 Correct 336 ms 71100 KB Output is correct
92 Correct 710 ms 46452 KB Output is correct
93 Correct 559 ms 105320 KB Output is correct
94 Correct 350 ms 67608 KB Output is correct
95 Correct 187 ms 6284 KB Output is correct
96 Correct 113 ms 11480 KB Output is correct
97 Correct 61 ms 4996 KB Output is correct
98 Correct 102 ms 6772 KB Output is correct
99 Correct 96 ms 6728 KB Output is correct