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답안 #572467

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
572467 2022-06-04T13:02:34 Z sidon Team Contest (JOI22_team) C++17
73 / 100
 152 ms 9248 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 DS : set<pair<int, int>> {
	void add(int i, int v) {
		auto f = lower_bound({i+1, 0});
		if(f != begin() && prev(f) != end() && prev(f)->second >= v) return;
		f = insert({i, v}).first;
		while(next(f) != end() && next(f)->second <= v) {
			erase(next(f));
			if(f == end()) exit(0);
		}
	}
	int query(int i) {
		auto f = lower_bound({i+1, 0});
		if(f == begin()) return -INF;
		if(prev(f) == end()) return -INF;
		return prev(f)->second;
	}
};

struct BIT {
	int n;
	vector<DS> a;
	BIT(int N) : n(N), a(N+1) {}
	void update(int i, int j, int v) {
		for(++i; i <= n; i += i&-i) a[i].add(j, v);
	}
	int query(int i, int j) {
		int v = -INF;
		for(++i; i >= 1; i -= i&-i) maxim(v, a[i].query(j));
		return v;
	}
};

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);
	}
	DS f[2];

	for(int i = 0; i < 2; ++i) {
		sort(all(C[i]));
		C[i].erase(unique(all(C[i])), end(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].query(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].query(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].add(sz[k] - 1 - c[i][k], sz[!k] - 1 - c[i][!k]);
		}
	}

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

Compilation message

team.cpp: In function 'int main()':
team.cpp:64:13: warning: 'sz' may be used uninitialized in this function [-Wmaybe-uninitialized]
   64 |  BIT b(sz[0]);
      |             ^
team.cpp:68:24: warning: ''target_mem_ref' not supported by dump_expr<expression error>' may be used uninitialized in this function [-Wmaybe-uninitialized]
   68 |    c[i][k] = sz[k] - 1 - (lower_bound(all(C[k]), a[i][k]) - begin(C[k]));
team.cpp:80:17: warning: '*((void*)& sz +4)' may be used uninitialized in this function [-Wmaybe-uninitialized]
   80 |    if(j > sz[1] - 1 - c[i][1])

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 448 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 2 ms 588 KB Output is correct
15 Correct 1 ms 452 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 468 KB Output is correct
20 Correct 1 ms 456 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 584 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct

Subtask #2
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 448 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 2 ms 588 KB Output is correct
15 Correct 1 ms 452 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 468 KB Output is correct
20 Correct 1 ms 456 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 584 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 6 ms 980 KB Output is correct
27 Correct 6 ms 852 KB Output is correct
28 Correct 6 ms 852 KB Output is correct
29 Correct 7 ms 724 KB Output is correct
30 Correct 5 ms 724 KB Output is correct
31 Correct 4 ms 724 KB Output is correct
32 Correct 5 ms 596 KB Output is correct
33 Correct 4 ms 676 KB Output is correct
34 Correct 7 ms 1096 KB Output is correct
35 Correct 1 ms 596 KB Output is correct
36 Correct 2 ms 596 KB Output is correct
37 Correct 5 ms 724 KB Output is correct
38 Correct 5 ms 720 KB Output is correct
39 Correct 2 ms 596 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 55 ms 5312 KB Output is correct
12 Correct 51 ms 3532 KB Output is correct
13 Correct 49 ms 4176 KB Output is correct
14 Correct 74 ms 5332 KB Output is correct
15 Correct 57 ms 5328 KB Output is correct
16 Correct 36 ms 5352 KB Output is correct

Subtask #4
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 55 ms 5312 KB Output is correct
12 Correct 51 ms 3532 KB Output is correct
13 Correct 49 ms 4176 KB Output is correct
14 Correct 74 ms 5332 KB Output is correct
15 Correct 57 ms 5328 KB Output is correct
16 Correct 36 ms 5352 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 3 ms 600 KB Output is correct
22 Correct 92 ms 5316 KB Output is correct
23 Correct 73 ms 5256 KB Output is correct
24 Correct 49 ms 3892 KB Output is correct
25 Correct 71 ms 5324 KB Output is correct
26 Correct 66 ms 5312 KB Output is correct

Subtask #5
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 55 ms 5312 KB Output is correct
12 Correct 51 ms 3532 KB Output is correct
13 Correct 49 ms 4176 KB Output is correct
14 Correct 74 ms 5332 KB Output is correct
15 Correct 57 ms 5328 KB Output is correct
16 Correct 36 ms 5352 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 3 ms 600 KB Output is correct
22 Correct 92 ms 5316 KB Output is correct
23 Correct 73 ms 5256 KB Output is correct
24 Correct 49 ms 3892 KB Output is correct
25 Correct 71 ms 5324 KB Output is correct
26 Correct 66 ms 5312 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 5 ms 724 KB Output is correct
32 Correct 2 ms 596 KB Output is correct
33 Correct 2 ms 596 KB Output is correct
34 Correct 104 ms 5480 KB Output is correct
35 Correct 88 ms 5352 KB Output is correct
36 Correct 122 ms 5596 KB Output is correct
37 Correct 93 ms 5528 KB Output is correct
38 Correct 65 ms 5536 KB Output is correct
39 Correct 32 ms 3448 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 55 ms 5312 KB Output is correct
12 Correct 51 ms 3532 KB Output is correct
13 Correct 49 ms 4176 KB Output is correct
14 Correct 74 ms 5332 KB Output is correct
15 Correct 57 ms 5328 KB Output is correct
16 Correct 36 ms 5352 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 468 KB Output is correct
21 Correct 3 ms 600 KB Output is correct
22 Correct 92 ms 5316 KB Output is correct
23 Correct 73 ms 5256 KB Output is correct
24 Correct 49 ms 3892 KB Output is correct
25 Correct 71 ms 5324 KB Output is correct
26 Correct 66 ms 5312 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Correct 1 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 1 ms 468 KB Output is correct
31 Correct 5 ms 724 KB Output is correct
32 Correct 2 ms 596 KB Output is correct
33 Correct 2 ms 596 KB Output is correct
34 Correct 104 ms 5480 KB Output is correct
35 Correct 88 ms 5352 KB Output is correct
36 Correct 122 ms 5596 KB Output is correct
37 Correct 93 ms 5528 KB Output is correct
38 Correct 65 ms 5536 KB Output is correct
39 Correct 32 ms 3448 KB Output is correct
40 Correct 4 ms 736 KB Output is correct
41 Correct 4 ms 716 KB Output is correct
42 Correct 3 ms 724 KB Output is correct
43 Correct 4 ms 732 KB Output is correct
44 Correct 140 ms 5564 KB Output is correct
45 Correct 135 ms 5612 KB Output is correct
46 Correct 152 ms 5520 KB Output is correct
47 Correct 131 ms 5060 KB Output is correct
48 Correct 60 ms 5056 KB Output is correct

Subtask #7
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 448 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 2 ms 588 KB Output is correct
15 Correct 1 ms 452 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 2 ms 468 KB Output is correct
20 Correct 1 ms 456 KB Output is correct
21 Correct 1 ms 468 KB Output is correct
22 Correct 1 ms 584 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 6 ms 980 KB Output is correct
27 Correct 6 ms 852 KB Output is correct
28 Correct 6 ms 852 KB Output is correct
29 Correct 7 ms 724 KB Output is correct
30 Correct 5 ms 724 KB Output is correct
31 Correct 4 ms 724 KB Output is correct
32 Correct 5 ms 596 KB Output is correct
33 Correct 4 ms 676 KB Output is correct
34 Correct 7 ms 1096 KB Output is correct
35 Correct 1 ms 596 KB Output is correct
36 Correct 2 ms 596 KB Output is correct
37 Correct 5 ms 724 KB Output is correct
38 Correct 5 ms 720 KB Output is correct
39 Correct 2 ms 596 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 468 KB Output is correct
43 Correct 1 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 1 ms 468 KB Output is correct
46 Correct 1 ms 468 KB Output is correct
47 Correct 1 ms 448 KB Output is correct
48 Correct 1 ms 468 KB Output is correct
49 Correct 1 ms 468 KB Output is correct
50 Correct 55 ms 5312 KB Output is correct
51 Correct 51 ms 3532 KB Output is correct
52 Correct 49 ms 4176 KB Output is correct
53 Correct 74 ms 5332 KB Output is correct
54 Correct 57 ms 5328 KB Output is correct
55 Correct 36 ms 5352 KB Output is correct
56 Correct 1 ms 468 KB Output is correct
57 Correct 1 ms 468 KB Output is correct
58 Correct 1 ms 468 KB Output is correct
59 Correct 1 ms 468 KB Output is correct
60 Correct 3 ms 600 KB Output is correct
61 Correct 92 ms 5316 KB Output is correct
62 Correct 73 ms 5256 KB Output is correct
63 Correct 49 ms 3892 KB Output is correct
64 Correct 71 ms 5324 KB Output is correct
65 Correct 66 ms 5312 KB Output is correct
66 Correct 1 ms 468 KB Output is correct
67 Correct 1 ms 468 KB Output is correct
68 Correct 1 ms 468 KB Output is correct
69 Correct 1 ms 468 KB Output is correct
70 Correct 5 ms 724 KB Output is correct
71 Correct 2 ms 596 KB Output is correct
72 Correct 2 ms 596 KB Output is correct
73 Correct 104 ms 5480 KB Output is correct
74 Correct 88 ms 5352 KB Output is correct
75 Correct 122 ms 5596 KB Output is correct
76 Correct 93 ms 5528 KB Output is correct
77 Correct 65 ms 5536 KB Output is correct
78 Correct 32 ms 3448 KB Output is correct
79 Correct 4 ms 736 KB Output is correct
80 Correct 4 ms 716 KB Output is correct
81 Correct 3 ms 724 KB Output is correct
82 Correct 4 ms 732 KB Output is correct
83 Correct 140 ms 5564 KB Output is correct
84 Correct 135 ms 5612 KB Output is correct
85 Correct 152 ms 5520 KB Output is correct
86 Correct 131 ms 5060 KB Output is correct
87 Correct 60 ms 5056 KB Output is correct
88 Runtime error 116 ms 9248 KB Execution killed with signal 11
89 Halted 0 ms 0 KB -