oj.uz

Submission #771264

# Submission time Handle Problem Language Result Execution time Memory
771264 2023-07-02T18:39:50 Z IBory Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 973 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 (!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:72:15: warning: 'EN' may be used uninitialized in this function [-Wmaybe-uninitialized]
   72 |  cout << (D[EN] > 1E9 ? -1 : D[EN]);
      |           ~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 122000 KB Output is correct
2 Correct 49 ms 122068 KB Output is correct
3 Correct 50 ms 122060 KB Output is correct
4 Correct 50 ms 121984 KB Output is correct
5 Correct 50 ms 122024 KB Output is correct
6 Correct 55 ms 122080 KB Output is correct
7 Correct 50 ms 122060 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 122072 KB Output is correct
2 Correct 51 ms 122060 KB Output is correct
3 Correct 50 ms 121972 KB Output is correct
4 Correct 50 ms 122048 KB Output is correct
5 Correct 50 ms 122068 KB Output is correct
6 Correct 52 ms 122048 KB Output is correct
7 Correct 54 ms 122060 KB Output is correct
8 Correct 50 ms 122036 KB Output is correct
9 Correct 50 ms 122044 KB Output is correct
10 Correct 51 ms 122156 KB Output is correct
11 Correct 52 ms 122316 KB Output is correct
12 Correct 53 ms 122108 KB Output is correct
13 Correct 51 ms 122036 KB Output is correct
14 Correct 52 ms 122432 KB Output is correct
15 Correct 52 ms 122452 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 122052 KB Output is correct
2 Correct 49 ms 122068 KB Output is correct
3 Correct 51 ms 122044 KB Output is correct
4 Correct 51 ms 122040 KB Output is correct
5 Correct 51 ms 122044 KB Output is correct
6 Correct 51 ms 122060 KB Output is correct
7 Correct 50 ms 122032 KB Output is correct
8 Correct 52 ms 122228 KB Output is correct
9 Correct 51 ms 122072 KB Output is correct
10 Correct 58 ms 122176 KB Output is correct
11 Correct 52 ms 122312 KB Output is correct
12 Correct 50 ms 122048 KB Output is correct
13 Correct 52 ms 122016 KB Output is correct
14 Correct 52 ms 122512 KB Output is correct
15 Correct 55 ms 122512 KB Output is correct
16 Correct 52 ms 122228 KB Output is correct
17 Correct 54 ms 122696 KB Output is correct
18 Correct 52 ms 122428 KB Output is correct
19 Correct 51 ms 122288 KB Output is correct
20 Correct 52 ms 122220 KB Output is correct
21 Correct 51 ms 122268 KB Output is correct
22 Correct 52 ms 122276 KB Output is correct
23 Correct 57 ms 122512 KB Output is correct
24 Correct 54 ms 122696 KB Output is correct
25 Correct 53 ms 122568 KB Output is correct
26 Correct 51 ms 122324 KB Output is correct
27 Correct 53 ms 122264 KB Output is correct
28 Correct 54 ms 123008 KB Output is correct
29 Correct 59 ms 124144 KB Output is correct
30 Correct 53 ms 122580 KB Output is correct
31 Correct 63 ms 123212 KB Output is correct
32 Correct 61 ms 122856 KB Output is correct
33 Correct 64 ms 126188 KB Output is correct
34 Correct 67 ms 126136 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 122060 KB Output is correct
2 Correct 51 ms 122032 KB Output is correct
3 Correct 51 ms 121944 KB Output is correct
4 Correct 52 ms 122036 KB Output is correct
5 Correct 51 ms 121972 KB Output is correct
6 Correct 51 ms 122000 KB Output is correct
7 Correct 51 ms 122052 KB Output is correct
8 Correct 51 ms 122080 KB Output is correct
9 Correct 50 ms 122068 KB Output is correct
10 Correct 50 ms 122148 KB Output is correct
11 Correct 52 ms 122336 KB Output is correct
12 Correct 51 ms 122060 KB Output is correct
13 Correct 50 ms 122068 KB Output is correct
14 Correct 52 ms 122520 KB Output is correct
15 Correct 52 ms 122448 KB Output is correct
16 Correct 50 ms 122300 KB Output is correct
17 Correct 54 ms 122700 KB Output is correct
18 Correct 52 ms 122416 KB Output is correct
19 Correct 51 ms 122200 KB Output is correct
20 Correct 51 ms 122176 KB Output is correct
21 Correct 52 ms 122188 KB Output is correct
22 Correct 51 ms 122356 KB Output is correct
23 Correct 53 ms 122320 KB Output is correct
24 Correct 53 ms 122708 KB Output is correct
25 Correct 51 ms 122580 KB Output is correct
26 Correct 51 ms 122308 KB Output is correct
27 Correct 51 ms 122240 KB Output is correct
28 Correct 53 ms 123104 KB Output is correct
29 Correct 57 ms 124120 KB Output is correct
30 Correct 52 ms 122580 KB Output is correct
31 Correct 53 ms 123220 KB Output is correct
32 Correct 54 ms 122792 KB Output is correct
33 Correct 64 ms 126200 KB Output is correct
34 Correct 64 ms 126116 KB Output is correct
35 Correct 78 ms 128356 KB Output is correct
36 Correct 55 ms 123132 KB Output is correct
37 Correct 84 ms 129824 KB Output is correct
38 Correct 91 ms 130744 KB Output is correct
39 Correct 100 ms 130816 KB Output is correct
40 Correct 95 ms 130636 KB Output is correct
41 Correct 90 ms 130736 KB Output is correct
42 Correct 55 ms 122508 KB Output is correct
43 Correct 55 ms 122504 KB Output is correct
44 Correct 53 ms 122464 KB Output is correct
45 Correct 149 ms 141080 KB Output is correct
46 Correct 143 ms 141156 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 122052 KB Output is correct
2 Correct 50 ms 121948 KB Output is correct
3 Correct 51 ms 122068 KB Output is correct
4 Correct 51 ms 121972 KB Output is correct
5 Correct 50 ms 122060 KB Output is correct
6 Correct 51 ms 122060 KB Output is correct
7 Correct 50 ms 121980 KB Output is correct
8 Correct 58 ms 121996 KB Output is correct
9 Correct 51 ms 122056 KB Output is correct
10 Correct 50 ms 122132 KB Output is correct
11 Correct 52 ms 122336 KB Output is correct
12 Correct 51 ms 122004 KB Output is correct
13 Correct 53 ms 122000 KB Output is correct
14 Correct 51 ms 122464 KB Output is correct
15 Correct 52 ms 122444 KB Output is correct
16 Correct 51 ms 122192 KB Output is correct
17 Correct 53 ms 122724 KB Output is correct
18 Correct 56 ms 122340 KB Output is correct
19 Correct 51 ms 122324 KB Output is correct
20 Correct 50 ms 122176 KB Output is correct
21 Correct 51 ms 122252 KB Output is correct
22 Correct 51 ms 122364 KB Output is correct
23 Correct 52 ms 122336 KB Output is correct
24 Correct 54 ms 122644 KB Output is correct
25 Correct 52 ms 122572 KB Output is correct
26 Correct 51 ms 122288 KB Output is correct
27 Correct 52 ms 122284 KB Output is correct
28 Correct 53 ms 123040 KB Output is correct
29 Correct 58 ms 124096 KB Output is correct
30 Correct 54 ms 122700 KB Output is correct
31 Correct 56 ms 123220 KB Output is correct
32 Correct 53 ms 122896 KB Output is correct
33 Correct 64 ms 126192 KB Output is correct
34 Correct 64 ms 126124 KB Output is correct
35 Correct 78 ms 128308 KB Output is correct
36 Correct 54 ms 123196 KB Output is correct
37 Correct 87 ms 129724 KB Output is correct
38 Correct 91 ms 130636 KB Output is correct
39 Correct 93 ms 130636 KB Output is correct
40 Correct 90 ms 130748 KB Output is correct
41 Correct 92 ms 130728 KB Output is correct
42 Correct 55 ms 122584 KB Output is correct
43 Correct 55 ms 122524 KB Output is correct
44 Correct 55 ms 122496 KB Output is correct
45 Correct 136 ms 141004 KB Output is correct
46 Correct 145 ms 140972 KB Output is correct
47 Correct 224 ms 148812 KB Output is correct
48 Correct 81 ms 132468 KB Output is correct
49 Correct 69 ms 129484 KB Output is correct
50 Correct 65 ms 128652 KB Output is correct
51 Correct 117 ms 136196 KB Output is correct
52 Correct 125 ms 137200 KB Output is correct
53 Correct 77 ms 128776 KB Output is correct
54 Correct 53 ms 123076 KB Output is correct
55 Correct 55 ms 123876 KB Output is correct
56 Correct 60 ms 124120 KB Output is correct
57 Correct 111 ms 136124 KB Output is correct
58 Correct 60 ms 124480 KB Output is correct
59 Correct 64 ms 125428 KB Output is correct
60 Correct 68 ms 126320 KB Output is correct
61 Correct 68 ms 126044 KB Output is correct
62 Correct 118 ms 142172 KB Output is correct
63 Correct 407 ms 199188 KB Output is correct
64 Correct 538 ms 215880 KB Output is correct
65 Correct 973 ms 256016 KB Output is correct
66 Runtime error 445 ms 262144 KB Execution killed with signal 11
67 Halted 0 ms 0 KB -