oj.uz

Submission #771263

# Submission time Handle Problem Language Result Execution time Memory
771263 2023-07-02T18:26:34 Z IBory Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 986 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 = 5555555;
vector<int> G[MAX];
vector<int> C[30003];
bool noL[MAX], noR[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;
			C[j].push_back(node);
			fr.push_back(node++);
		}
		noL[fr[0]] = noR[fr.back()] = 1;
		for (int n : v) {
			G[n].push_back(-fr[(n - 1) / p]);
		}
	}
	make.clear();
	
	for (int i = 1; i <= N; ++i) {
		noL[i] = noR[i] = 1;
		for (int n : C[i]) {
			G[n].push_back(-i);
		}
		C[i].clear();
	}

	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 (!noR[cur]) 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 (!noR[cur]) G[cur].pop_back();
	}

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

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:30:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   30 |  for (auto& [q, v] : make) {
      |             ^
skyscraper.cpp:31:8: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   31 |   auto [p, i] = q;
      |        ^
skyscraper.cpp:80:15: warning: 'EN' may be used uninitialized in this function [-Wmaybe-uninitialized]
   80 |  cout << (D[EN] > 1E9 ? -1 : D[EN]);
      |           ~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 153180 KB Output is correct
2 Correct 70 ms 153208 KB Output is correct
3 Correct 71 ms 153220 KB Output is correct
4 Correct 70 ms 153172 KB Output is correct
5 Correct 71 ms 153132 KB Output is correct
6 Correct 72 ms 153136 KB Output is correct
7 Correct 76 ms 153244 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 153224 KB Output is correct
2 Correct 70 ms 153148 KB Output is correct
3 Correct 72 ms 153164 KB Output is correct
4 Correct 71 ms 153224 KB Output is correct
5 Correct 70 ms 153164 KB Output is correct
6 Correct 70 ms 153220 KB Output is correct
7 Correct 70 ms 153208 KB Output is correct
8 Correct 71 ms 153176 KB Output is correct
9 Correct 71 ms 153168 KB Output is correct
10 Correct 71 ms 153316 KB Output is correct
11 Correct 71 ms 153380 KB Output is correct
12 Correct 70 ms 153204 KB Output is correct
13 Correct 73 ms 153212 KB Output is correct
14 Correct 73 ms 153552 KB Output is correct
15 Correct 72 ms 153604 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 153224 KB Output is correct
2 Correct 70 ms 153176 KB Output is correct
3 Correct 70 ms 153140 KB Output is correct
4 Correct 69 ms 153220 KB Output is correct
5 Correct 70 ms 153224 KB Output is correct
6 Correct 76 ms 153196 KB Output is correct
7 Correct 71 ms 153196 KB Output is correct
8 Correct 70 ms 153164 KB Output is correct
9 Correct 73 ms 153264 KB Output is correct
10 Correct 70 ms 153304 KB Output is correct
11 Correct 71 ms 153364 KB Output is correct
12 Correct 70 ms 153256 KB Output is correct
13 Correct 71 ms 153168 KB Output is correct
14 Correct 72 ms 153608 KB Output is correct
15 Correct 72 ms 153536 KB Output is correct
16 Correct 71 ms 153380 KB Output is correct
17 Correct 76 ms 153808 KB Output is correct
18 Correct 72 ms 153516 KB Output is correct
19 Correct 71 ms 153420 KB Output is correct
20 Correct 71 ms 153420 KB Output is correct
21 Correct 72 ms 153336 KB Output is correct
22 Correct 72 ms 153420 KB Output is correct
23 Correct 70 ms 153456 KB Output is correct
24 Correct 73 ms 153864 KB Output is correct
25 Correct 71 ms 153684 KB Output is correct
26 Correct 71 ms 153528 KB Output is correct
27 Correct 71 ms 153420 KB Output is correct
28 Correct 75 ms 154284 KB Output is correct
29 Correct 80 ms 155544 KB Output is correct
30 Correct 72 ms 153932 KB Output is correct
31 Correct 82 ms 154512 KB Output is correct
32 Correct 75 ms 154180 KB Output is correct
33 Correct 93 ms 157776 KB Output is correct
34 Correct 94 ms 157888 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 153164 KB Output is correct
2 Correct 70 ms 153164 KB Output is correct
3 Correct 71 ms 153228 KB Output is correct
4 Correct 71 ms 153196 KB Output is correct
5 Correct 72 ms 153308 KB Output is correct
6 Correct 70 ms 153192 KB Output is correct
7 Correct 70 ms 153224 KB Output is correct
8 Correct 69 ms 153228 KB Output is correct
9 Correct 70 ms 153116 KB Output is correct
10 Correct 70 ms 153332 KB Output is correct
11 Correct 77 ms 153480 KB Output is correct
12 Correct 73 ms 153208 KB Output is correct
13 Correct 71 ms 153260 KB Output is correct
14 Correct 72 ms 153556 KB Output is correct
15 Correct 73 ms 153588 KB Output is correct
16 Correct 72 ms 153344 KB Output is correct
17 Correct 78 ms 153932 KB Output is correct
18 Correct 71 ms 153520 KB Output is correct
19 Correct 72 ms 153472 KB Output is correct
20 Correct 72 ms 153420 KB Output is correct
21 Correct 76 ms 153432 KB Output is correct
22 Correct 72 ms 153508 KB Output is correct
23 Correct 76 ms 153524 KB Output is correct
24 Correct 74 ms 153808 KB Output is correct
25 Correct 73 ms 153672 KB Output is correct
26 Correct 72 ms 153544 KB Output is correct
27 Correct 73 ms 153548 KB Output is correct
28 Correct 76 ms 154188 KB Output is correct
29 Correct 84 ms 155684 KB Output is correct
30 Correct 75 ms 153972 KB Output is correct
31 Correct 77 ms 154572 KB Output is correct
32 Correct 75 ms 154088 KB Output is correct
33 Correct 94 ms 157812 KB Output is correct
34 Correct 95 ms 157772 KB Output is correct
35 Correct 111 ms 157972 KB Output is correct
36 Correct 76 ms 154076 KB Output is correct
37 Correct 113 ms 160428 KB Output is correct
38 Correct 121 ms 160456 KB Output is correct
39 Correct 117 ms 160520 KB Output is correct
40 Correct 119 ms 160604 KB Output is correct
41 Correct 115 ms 160480 KB Output is correct
42 Correct 74 ms 153576 KB Output is correct
43 Correct 74 ms 153644 KB Output is correct
44 Correct 73 ms 153676 KB Output is correct
45 Correct 194 ms 172200 KB Output is correct
46 Correct 186 ms 172108 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 153224 KB Output is correct
2 Correct 69 ms 153180 KB Output is correct
3 Correct 71 ms 153240 KB Output is correct
4 Correct 76 ms 153324 KB Output is correct
5 Correct 69 ms 153216 KB Output is correct
6 Correct 70 ms 153192 KB Output is correct
7 Correct 69 ms 153220 KB Output is correct
8 Correct 70 ms 153156 KB Output is correct
9 Correct 73 ms 153164 KB Output is correct
10 Correct 71 ms 153336 KB Output is correct
11 Correct 71 ms 153472 KB Output is correct
12 Correct 70 ms 153156 KB Output is correct
13 Correct 69 ms 153152 KB Output is correct
14 Correct 72 ms 153516 KB Output is correct
15 Correct 73 ms 153572 KB Output is correct
16 Correct 70 ms 153420 KB Output is correct
17 Correct 74 ms 153884 KB Output is correct
18 Correct 72 ms 153440 KB Output is correct
19 Correct 72 ms 153476 KB Output is correct
20 Correct 71 ms 153420 KB Output is correct
21 Correct 71 ms 153328 KB Output is correct
22 Correct 71 ms 153420 KB Output is correct
23 Correct 73 ms 153468 KB Output is correct
24 Correct 76 ms 153864 KB Output is correct
25 Correct 73 ms 153600 KB Output is correct
26 Correct 70 ms 153492 KB Output is correct
27 Correct 75 ms 153548 KB Output is correct
28 Correct 75 ms 154300 KB Output is correct
29 Correct 81 ms 155600 KB Output is correct
30 Correct 72 ms 153928 KB Output is correct
31 Correct 76 ms 154512 KB Output is correct
32 Correct 75 ms 154128 KB Output is correct
33 Correct 95 ms 157888 KB Output is correct
34 Correct 94 ms 157872 KB Output is correct
35 Correct 102 ms 158016 KB Output is correct
36 Correct 77 ms 154124 KB Output is correct
37 Correct 115 ms 160496 KB Output is correct
38 Correct 120 ms 160440 KB Output is correct
39 Correct 119 ms 160460 KB Output is correct
40 Correct 117 ms 160512 KB Output is correct
41 Correct 118 ms 160436 KB Output is correct
42 Correct 76 ms 153632 KB Output is correct
43 Correct 76 ms 153652 KB Output is correct
44 Correct 73 ms 153596 KB Output is correct
45 Correct 191 ms 172120 KB Output is correct
46 Correct 186 ms 172108 KB Output is correct
47 Correct 313 ms 182896 KB Output is correct
48 Correct 111 ms 163456 KB Output is correct
49 Correct 99 ms 159940 KB Output is correct
50 Correct 95 ms 159820 KB Output is correct
51 Correct 182 ms 167300 KB Output is correct
52 Correct 178 ms 168392 KB Output is correct
53 Correct 108 ms 158456 KB Output is correct
54 Correct 72 ms 155084 KB Output is correct
55 Correct 75 ms 155860 KB Output is correct
56 Correct 81 ms 156164 KB Output is correct
57 Correct 156 ms 170192 KB Output is correct
58 Correct 83 ms 156432 KB Output is correct
59 Correct 89 ms 157436 KB Output is correct
60 Correct 96 ms 158524 KB Output is correct
61 Correct 102 ms 158184 KB Output is correct
62 Correct 200 ms 174368 KB Output is correct
63 Correct 986 ms 245308 KB Output is correct
64 Runtime error 277 ms 262144 KB Execution killed with signal 9
65 Halted 0 ms 0 KB -