oj.uz

Submission #771265

# Submission time Handle Problem Language Result Execution time Memory
771265 2023-07-02T18:40:55 Z IBory Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 957 ms 262144 KB 
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

#include <bits/stdc++.h>
#define pii pair<int, int>
using namespace std;

const int MAX = 4444444;
vector<int> G[MAX];
bool noL[MAX];
int D[MAX];

int main() {
	ios::sync_with_stdio(0); cin.tie(0);
	int N, M;
	cin >> N >> M;
	map<pii, vector<int>> make;
	pii S, E;
	for (int i = 0; i < M; ++i) {
		int b, p;
		cin >> b >> p; b++;
		if (i == 0) S = { b, p };
		if (i == 1) E = { b, p };
		make[{p, b % p}].push_back(b);
	}

	int node = N + 1, SN, EN;
	for (auto& [q, v] : make) {
		auto [p, i] = q;
		if (!i) i += p;
		vector<int> fr;
		for (int j = i; j <= N; j += p) {
			if (S == pii{ j, p }) SN = node;
			if (E == pii{ j, p }) EN = node;
			G[node].push_back(-j);
			fr.push_back(node++);
		}
		noL[fr[0]] = noL[fr.back() + 1] = 1;
		for (int n : v) {
			G[n].push_back(-fr[(n - 1) / p]);
		}
	}
	make.clear();
	for (int i = 1; i <= N; ++i) noL[i] = 1;

	memset(D, 0x3f, sizeof(D));
	D[SN] = 0;
	deque<int> Q;
	Q.push_back(SN);
	while (!Q.empty()) {
		int cur = Q.front(); Q.pop_front();
		if (cur == EN) break;
		if (!noL[cur]) G[cur].push_back(cur - 1);
		if (!noL[cur + 1]) G[cur].push_back(cur + 1);

		for (int next : G[cur]) {
			int d = 1;
			if (next < 0) {
				d = 0;
				next *= -1;
			}
			if (D[cur] + d >= D[next]) continue;
			D[next] = D[cur] + d;
			if (d == 0) Q.push_front(next);
			else Q.push_back(next);
		}

		if (!noL[cur]) G[cur].pop_back();
		if (!noL[cur + 1]) G[cur].pop_back();
	}

	cout << (D[EN] > 1E9 ? -1 : D[EN]);
	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:73:15: warning: 'EN' may be used uninitialized in this function [-Wmaybe-uninitialized]
   73 |  cout << (D[EN] > 1E9 ? -1 : D[EN]);
      |           ~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 122060 KB Output is correct
2 Correct 55 ms 122052 KB Output is correct
3 Correct 57 ms 122020 KB Output is correct
4 Correct 55 ms 122036 KB Output is correct
5 Correct 56 ms 121956 KB Output is correct
6 Correct 65 ms 122048 KB Output is correct
7 Correct 56 ms 122020 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 122068 KB Output is correct
2 Correct 57 ms 122020 KB Output is correct
3 Correct 57 ms 122072 KB Output is correct
4 Correct 57 ms 121980 KB Output is correct
5 Correct 58 ms 122044 KB Output is correct
6 Correct 61 ms 121980 KB Output is correct
7 Correct 57 ms 122060 KB Output is correct
8 Correct 57 ms 121960 KB Output is correct
9 Correct 57 ms 122088 KB Output is correct
10 Correct 58 ms 122128 KB Output is correct
11 Correct 60 ms 122368 KB Output is correct
12 Correct 63 ms 122024 KB Output is correct
13 Correct 59 ms 122060 KB Output is correct
14 Correct 59 ms 122444 KB Output is correct
15 Correct 60 ms 122448 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 122076 KB Output is correct
2 Correct 58 ms 121984 KB Output is correct
3 Correct 58 ms 122060 KB Output is correct
4 Correct 57 ms 122072 KB Output is correct
5 Correct 58 ms 122060 KB Output is correct
6 Correct 59 ms 122072 KB Output is correct
7 Correct 68 ms 122060 KB Output is correct
8 Correct 58 ms 121980 KB Output is correct
9 Correct 59 ms 122088 KB Output is correct
10 Correct 57 ms 122060 KB Output is correct
11 Correct 60 ms 122336 KB Output is correct
12 Correct 58 ms 122008 KB Output is correct
13 Correct 59 ms 122004 KB Output is correct
14 Correct 60 ms 122412 KB Output is correct
15 Correct 59 ms 122512 KB Output is correct
16 Correct 60 ms 122272 KB Output is correct
17 Correct 61 ms 122700 KB Output is correct
18 Correct 68 ms 122424 KB Output is correct
19 Correct 60 ms 122196 KB Output is correct
20 Correct 59 ms 122156 KB Output is correct
21 Correct 59 ms 122284 KB Output is correct
22 Correct 59 ms 122352 KB Output is correct
23 Correct 61 ms 122316 KB Output is correct
24 Correct 62 ms 122648 KB Output is correct
25 Correct 70 ms 122608 KB Output is correct
26 Correct 61 ms 122328 KB Output is correct
27 Correct 65 ms 122344 KB Output is correct
28 Correct 60 ms 123056 KB Output is correct
29 Correct 66 ms 124132 KB Output is correct
30 Correct 60 ms 122576 KB Output is correct
31 Correct 61 ms 123148 KB Output is correct
32 Correct 64 ms 122900 KB Output is correct
33 Correct 72 ms 126136 KB Output is correct
34 Correct 77 ms 126192 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 121956 KB Output is correct
2 Correct 67 ms 121976 KB Output is correct
3 Correct 56 ms 122000 KB Output is correct
4 Correct 56 ms 122072 KB Output is correct
5 Correct 56 ms 122060 KB Output is correct
6 Correct 56 ms 122052 KB Output is correct
7 Correct 57 ms 121996 KB Output is correct
8 Correct 64 ms 122068 KB Output is correct
9 Correct 57 ms 122016 KB Output is correct
10 Correct 57 ms 122064 KB Output is correct
11 Correct 60 ms 122400 KB Output is correct
12 Correct 56 ms 122056 KB Output is correct
13 Correct 57 ms 122068 KB Output is correct
14 Correct 69 ms 122512 KB Output is correct
15 Correct 60 ms 122508 KB Output is correct
16 Correct 58 ms 122244 KB Output is correct
17 Correct 61 ms 122700 KB Output is correct
18 Correct 58 ms 122376 KB Output is correct
19 Correct 62 ms 122308 KB Output is correct
20 Correct 59 ms 122160 KB Output is correct
21 Correct 66 ms 122188 KB Output is correct
22 Correct 58 ms 122328 KB Output is correct
23 Correct 63 ms 122424 KB Output is correct
24 Correct 61 ms 122808 KB Output is correct
25 Correct 61 ms 122464 KB Output is correct
26 Correct 60 ms 122428 KB Output is correct
27 Correct 60 ms 122316 KB Output is correct
28 Correct 60 ms 122980 KB Output is correct
29 Correct 65 ms 124080 KB Output is correct
30 Correct 60 ms 122632 KB Output is correct
31 Correct 70 ms 123120 KB Output is correct
32 Correct 72 ms 122900 KB Output is correct
33 Correct 74 ms 126076 KB Output is correct
34 Correct 68 ms 126132 KB Output is correct
35 Correct 80 ms 128336 KB Output is correct
36 Correct 61 ms 123108 KB Output is correct
37 Correct 79 ms 129832 KB Output is correct
38 Correct 86 ms 130708 KB Output is correct
39 Correct 87 ms 130812 KB Output is correct
40 Correct 84 ms 130620 KB Output is correct
41 Correct 82 ms 130728 KB Output is correct
42 Correct 61 ms 122540 KB Output is correct
43 Correct 61 ms 122484 KB Output is correct
44 Correct 62 ms 122444 KB Output is correct
45 Correct 188 ms 141196 KB Output is correct
46 Correct 155 ms 141036 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 122060 KB Output is correct
2 Correct 59 ms 122072 KB Output is correct
3 Correct 58 ms 122076 KB Output is correct
4 Correct 63 ms 121988 KB Output is correct
5 Correct 58 ms 122072 KB Output is correct
6 Correct 57 ms 122072 KB Output is correct
7 Correct 57 ms 122024 KB Output is correct
8 Correct 58 ms 122080 KB Output is correct
9 Correct 58 ms 122084 KB Output is correct
10 Correct 60 ms 122076 KB Output is correct
11 Correct 63 ms 122320 KB Output is correct
12 Correct 57 ms 122060 KB Output is correct
13 Correct 58 ms 122060 KB Output is correct
14 Correct 60 ms 122436 KB Output is correct
15 Correct 61 ms 122508 KB Output is correct
16 Correct 60 ms 122248 KB Output is correct
17 Correct 60 ms 122680 KB Output is correct
18 Correct 59 ms 122340 KB Output is correct
19 Correct 60 ms 122216 KB Output is correct
20 Correct 60 ms 122228 KB Output is correct
21 Correct 70 ms 122300 KB Output is correct
22 Correct 59 ms 122236 KB Output is correct
23 Correct 60 ms 122384 KB Output is correct
24 Correct 62 ms 122688 KB Output is correct
25 Correct 61 ms 122548 KB Output is correct
26 Correct 61 ms 122304 KB Output is correct
27 Correct 61 ms 122236 KB Output is correct
28 Correct 63 ms 123016 KB Output is correct
29 Correct 66 ms 124140 KB Output is correct
30 Correct 61 ms 122572 KB Output is correct
31 Correct 63 ms 123144 KB Output is correct
32 Correct 62 ms 122860 KB Output is correct
33 Correct 71 ms 126112 KB Output is correct
34 Correct 69 ms 126176 KB Output is correct
35 Correct 82 ms 128348 KB Output is correct
36 Correct 65 ms 123212 KB Output is correct
37 Correct 85 ms 129792 KB Output is correct
38 Correct 94 ms 130756 KB Output is correct
39 Correct 83 ms 130700 KB Output is correct
40 Correct 100 ms 130644 KB Output is correct
41 Correct 84 ms 130724 KB Output is correct
42 Correct 64 ms 122552 KB Output is correct
43 Correct 63 ms 122484 KB Output is correct
44 Correct 62 ms 122504 KB Output is correct
45 Correct 143 ms 140988 KB Output is correct
46 Correct 128 ms 140984 KB Output is correct
47 Correct 110 ms 148732 KB Output is correct
48 Correct 79 ms 132484 KB Output is correct
49 Correct 75 ms 129412 KB Output is correct
50 Correct 72 ms 128716 KB Output is correct
51 Correct 99 ms 136124 KB Output is correct
52 Correct 101 ms 137116 KB Output is correct
53 Correct 82 ms 128864 KB Output is correct
54 Correct 66 ms 123008 KB Output is correct
55 Correct 62 ms 123888 KB Output is correct
56 Correct 68 ms 124072 KB Output is correct
57 Correct 75 ms 136052 KB Output is correct
58 Correct 69 ms 124416 KB Output is correct
59 Correct 69 ms 125444 KB Output is correct
60 Correct 71 ms 126300 KB Output is correct
61 Correct 74 ms 126040 KB Output is correct
62 Correct 122 ms 142160 KB Output is correct
63 Correct 430 ms 199180 KB Output is correct
64 Correct 472 ms 215972 KB Output is correct
65 Correct 957 ms 255812 KB Output is correct
66 Runtime error 423 ms 262144 KB Execution killed with signal 11
67 Halted 0 ms 0 KB -