oj.uz

Submission #733617

# Submission time Handle Problem Language Result Execution time Memory
733617 2023-05-01T04:56:59 Z SanguineChameleon Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 265 ms 84432 KB 
#include <bits/stdc++.h>
using namespace std;

void just_do_it();

int main() {
	#ifdef KAMIRULEZ
		freopen("kamirulez.inp", "r", stdin);
		freopen("kamirulez.out", "w", stdout);
	#endif
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	just_do_it();
	return 0;
}

const int maxN = 3e4 + 20;
const int maxC = 1e7 + 20;
const int inf = 1e9 + 20;
int B[maxN];
int P[maxN];
vector<int> adj0[maxN];
bool can_nxt[maxC];
bool can_prv[maxC];
int dist[maxC];
int pos[maxC];
bool flag[maxN];
int id[maxN];

void just_do_it() {
	fill_n(pos, maxC, -1);
	int N, M;
	cin >> N >> M;
	const int lim = sqrt(N);
	int cnt = N;
	for (int i = 0; i < M; i++) {
		cin >> B[i] >> P[i];
		if (P[i] > lim) {
			int cur = B[i] % P[i];
			int nxt = cur + P[i];
			for (; cur < N; cur += P[i], nxt += P[i]) {
				if (nxt < N) {
					can_nxt[cnt] = true;
					can_prv[cnt + 1] = true;
				}
				if (cur == B[i]) {
					adj0[B[i]].emplace_back(cnt);
				}
				pos[cnt] = cur;
				cnt++;
				if (cnt == maxC) {
					exit(0);
				}
			}
		}
	}
	for (int d = 1; d <= lim; d++) {
		for (int i = 0; i < N; i++) {
			flag[i] = false;
		}
		bool found = false;
		for (int i = 0; i < M; i++) {
			if (P[i] == d) {
				found = true;
				break;
			}
		}
		if (!found) {
			continue;
		}
		for (int i = 0; i < d; i++) {
			int cur = i;
			int nxt = cur + d;
			for (; cur < N; cur += d, nxt += d) {
				if (nxt < N) {
					can_nxt[cnt] = true;
					can_prv[cnt + 1] = true;
				}
				id[cur] = cnt;
				pos[cnt] = cur;
				cnt++;
				if (cnt == maxC) {
					exit(0);
				}
			}
		}
		for (int i = 0; i < M; i++) {
			if (P[i] == d && !flag[B[i]]) {
				flag[B[i]] = true;
				adj0[B[i]].emplace_back(id[B[i]]);
			}
		}
	}
	for (int i = 0; i < cnt; i++) {
		dist[i] = inf;
	}
	dist[B[0]] = 0;
	deque<int> q = {B[0]};
	while (!q.empty()) {
		int u = q.front();
		if (u == B[1]) {
			cout << dist[u];
			return;
		}
		q.pop_front();
		if (u < N) {
			for (auto v: adj0[u]) {
				if (dist[u] < dist[v]) {
					dist[v] = dist[u];
					q.push_front(v);
				}
			}
		}
		else {
			if (pos[u] != -1) {
				int v = pos[u];
				if (dist[u] < dist[v]) {
					dist[v] = dist[u];
					q.push_front(v);
				}
			}
			if (can_nxt[u]) {
				int v = u + 1;
				if (dist[u] + 1 < dist[v]) {
					dist[v] = dist[u] + 1;
					q.push_back(v);
				}
			}
			if (can_prv[u]) {
				int v = u - 1;
				if (dist[u] + 1 < dist[v]) {
					dist[v] = dist[u] + 1;
					q.push_back(v);
				}
			}
		}
	}
	cout << -1;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 40148 KB Output is correct
2 Correct 16 ms 40180 KB Output is correct
3 Correct 18 ms 40172 KB Output is correct
4 Correct 17 ms 40144 KB Output is correct
5 Correct 19 ms 40132 KB Output is correct
6 Correct 16 ms 40148 KB Output is correct
7 Correct 17 ms 40148 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 40180 KB Output is correct
2 Correct 17 ms 40148 KB Output is correct
3 Correct 16 ms 40148 KB Output is correct
4 Correct 17 ms 40148 KB Output is correct
5 Correct 18 ms 40092 KB Output is correct
6 Correct 18 ms 40120 KB Output is correct
7 Correct 17 ms 40148 KB Output is correct
8 Correct 20 ms 40140 KB Output is correct
9 Correct 20 ms 40144 KB Output is correct
10 Correct 17 ms 40148 KB Output is correct
11 Correct 20 ms 40208 KB Output is correct
12 Correct 17 ms 40128 KB Output is correct
13 Correct 17 ms 40148 KB Output is correct
14 Correct 17 ms 40276 KB Output is correct
15 Correct 18 ms 40248 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 40276 KB Output is correct
2 Correct 17 ms 40148 KB Output is correct
3 Correct 17 ms 40148 KB Output is correct
4 Correct 18 ms 40136 KB Output is correct
5 Correct 17 ms 40148 KB Output is correct
6 Correct 17 ms 40148 KB Output is correct
7 Correct 17 ms 40148 KB Output is correct
8 Correct 16 ms 40140 KB Output is correct
9 Correct 19 ms 40148 KB Output is correct
10 Correct 17 ms 40144 KB Output is correct
11 Correct 17 ms 40244 KB Output is correct
12 Correct 17 ms 40164 KB Output is correct
13 Correct 17 ms 40148 KB Output is correct
14 Correct 20 ms 40212 KB Output is correct
15 Correct 17 ms 40276 KB Output is correct
16 Correct 17 ms 40176 KB Output is correct
17 Correct 17 ms 40424 KB Output is correct
18 Correct 17 ms 40388 KB Output is correct
19 Correct 18 ms 40372 KB Output is correct
20 Correct 19 ms 40296 KB Output is correct
21 Correct 19 ms 40136 KB Output is correct
22 Correct 20 ms 40276 KB Output is correct
23 Correct 18 ms 40404 KB Output is correct
24 Correct 18 ms 40532 KB Output is correct
25 Correct 18 ms 40276 KB Output is correct
26 Correct 17 ms 40460 KB Output is correct
27 Correct 17 ms 40404 KB Output is correct
28 Correct 19 ms 40644 KB Output is correct
29 Correct 18 ms 40516 KB Output is correct
30 Correct 17 ms 40236 KB Output is correct
31 Correct 19 ms 40404 KB Output is correct
32 Correct 18 ms 40364 KB Output is correct
33 Correct 19 ms 40916 KB Output is correct
34 Correct 21 ms 41008 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 40148 KB Output is correct
2 Correct 17 ms 40148 KB Output is correct
3 Correct 17 ms 40152 KB Output is correct
4 Correct 17 ms 40084 KB Output is correct
5 Correct 19 ms 40232 KB Output is correct
6 Correct 17 ms 40148 KB Output is correct
7 Correct 20 ms 40176 KB Output is correct
8 Correct 18 ms 40120 KB Output is correct
9 Correct 20 ms 40108 KB Output is correct
10 Correct 17 ms 40148 KB Output is correct
11 Correct 17 ms 40220 KB Output is correct
12 Correct 20 ms 40228 KB Output is correct
13 Correct 20 ms 40148 KB Output is correct
14 Correct 17 ms 40232 KB Output is correct
15 Correct 17 ms 40276 KB Output is correct
16 Correct 19 ms 40260 KB Output is correct
17 Correct 16 ms 40404 KB Output is correct
18 Correct 18 ms 40484 KB Output is correct
19 Correct 18 ms 40276 KB Output is correct
20 Correct 18 ms 40276 KB Output is correct
21 Correct 18 ms 40152 KB Output is correct
22 Correct 17 ms 40276 KB Output is correct
23 Correct 19 ms 40424 KB Output is correct
24 Correct 18 ms 40524 KB Output is correct
25 Correct 18 ms 40220 KB Output is correct
26 Correct 20 ms 40556 KB Output is correct
27 Correct 17 ms 40364 KB Output is correct
28 Correct 18 ms 40704 KB Output is correct
29 Correct 18 ms 40552 KB Output is correct
30 Correct 20 ms 40276 KB Output is correct
31 Correct 17 ms 40388 KB Output is correct
32 Correct 20 ms 40276 KB Output is correct
33 Correct 19 ms 40916 KB Output is correct
34 Correct 18 ms 40916 KB Output is correct
35 Correct 23 ms 41336 KB Output is correct
36 Correct 18 ms 40496 KB Output is correct
37 Correct 23 ms 41876 KB Output is correct
38 Correct 25 ms 41904 KB Output is correct
39 Correct 24 ms 41868 KB Output is correct
40 Correct 24 ms 41804 KB Output is correct
41 Correct 24 ms 41812 KB Output is correct
42 Correct 21 ms 40624 KB Output is correct
43 Correct 21 ms 40608 KB Output is correct
44 Correct 21 ms 40472 KB Output is correct
45 Correct 30 ms 43600 KB Output is correct
46 Correct 30 ms 43592 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 40084 KB Output is correct
2 Correct 19 ms 40064 KB Output is correct
3 Correct 18 ms 40148 KB Output is correct
4 Correct 17 ms 40140 KB Output is correct
5 Correct 17 ms 40208 KB Output is correct
6 Correct 18 ms 40136 KB Output is correct
7 Correct 17 ms 40200 KB Output is correct
8 Correct 18 ms 40168 KB Output is correct
9 Correct 19 ms 40148 KB Output is correct
10 Correct 19 ms 40232 KB Output is correct
11 Correct 18 ms 40276 KB Output is correct
12 Correct 18 ms 40196 KB Output is correct
13 Correct 17 ms 40148 KB Output is correct
14 Correct 18 ms 40232 KB Output is correct
15 Correct 18 ms 40264 KB Output is correct
16 Correct 17 ms 40148 KB Output is correct
17 Correct 19 ms 40352 KB Output is correct
18 Correct 17 ms 40452 KB Output is correct
19 Correct 20 ms 40304 KB Output is correct
20 Correct 23 ms 40248 KB Output is correct
21 Correct 18 ms 40196 KB Output is correct
22 Correct 19 ms 40404 KB Output is correct
23 Correct 18 ms 40404 KB Output is correct
24 Correct 21 ms 40612 KB Output is correct
25 Correct 18 ms 40276 KB Output is correct
26 Correct 18 ms 40524 KB Output is correct
27 Correct 17 ms 40400 KB Output is correct
28 Correct 18 ms 40724 KB Output is correct
29 Correct 18 ms 40512 KB Output is correct
30 Correct 19 ms 40276 KB Output is correct
31 Correct 17 ms 40436 KB Output is correct
32 Correct 17 ms 40356 KB Output is correct
33 Correct 20 ms 40916 KB Output is correct
34 Correct 18 ms 40952 KB Output is correct
35 Correct 22 ms 41372 KB Output is correct
36 Correct 18 ms 40532 KB Output is correct
37 Correct 22 ms 41860 KB Output is correct
38 Correct 23 ms 41804 KB Output is correct
39 Correct 24 ms 41840 KB Output is correct
40 Correct 24 ms 41892 KB Output is correct
41 Correct 24 ms 41812 KB Output is correct
42 Correct 20 ms 40628 KB Output is correct
43 Correct 22 ms 40540 KB Output is correct
44 Correct 21 ms 40532 KB Output is correct
45 Correct 32 ms 43616 KB Output is correct
46 Correct 29 ms 43604 KB Output is correct
47 Correct 34 ms 51168 KB Output is correct
48 Correct 34 ms 54376 KB Output is correct
49 Correct 31 ms 51844 KB Output is correct
50 Correct 29 ms 51916 KB Output is correct
51 Correct 43 ms 61404 KB Output is correct
52 Correct 46 ms 63824 KB Output is correct
53 Correct 27 ms 41884 KB Output is correct
54 Correct 18 ms 40532 KB Output is correct
55 Correct 18 ms 40976 KB Output is correct
56 Correct 28 ms 41812 KB Output is correct
57 Correct 20 ms 43196 KB Output is correct
58 Correct 23 ms 42964 KB Output is correct
59 Correct 27 ms 46388 KB Output is correct
60 Correct 34 ms 56332 KB Output is correct
61 Correct 28 ms 48068 KB Output is correct
62 Correct 44 ms 57148 KB Output is correct
63 Correct 103 ms 54376 KB Output is correct
64 Correct 125 ms 57420 KB Output is correct
65 Correct 186 ms 70776 KB Output is correct
66 Correct 265 ms 84244 KB Output is correct
67 Correct 255 ms 84432 KB Output is correct