Submission #510275

# Submission time Handle Problem Language Result Execution time Memory
510275 2022-01-14T21:49:25 Z thiago_bastos Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
1000 ms 35904 KB
#include "bits/stdc++.h"

using namespace std;

using i64 = long long;
using u64 = unsigned long long;
using i32 = int;
using u32 = unsigned;
using i16 = short;
using u16 = unsigned short;
using ld = long double;
using ii = pair<int, int>;

const int N = 3e4 + 100, INF = 1e9;

vector<int> P[N];
unordered_map<int, int> jumps[N];

void solve() {
	int n, m;

	cin >> n >> m;

	vector<int> cnt(n, INF);
	queue<ii> q;

	int x0 = -1, x1 = -1;

	for(int i = 0; i < m; ++i) {
		int b, p;
		cin >> b >> p;
		if(!i) x0 = b;
		else if(i == 1) x1 = b;
		for(int x = b % p; x < n; x += p) jumps[x][p] = -1;
		P[b].push_back(p);
	}

	while(!P[x0].empty()) {
		int k = P[x0].back();
		P[x0].pop_back();
		if(jumps[x0][k] == -1) {
			jumps[x0][k] = 0;
			q.emplace(x0, k);
		}
	}

	while(!q.empty()) {
		auto [x, p] = q.front();
		q.pop();
		int j = jumps[x][p];	
		cnt[x] = min(cnt[x], j);
		if(x == x1) break;
		if(x >= p && jumps[x - p][p] == -1) {
			jumps[x - p][p] = 1 + j;
			q.emplace(x - p, p);
		}
		if(x + p < n && jumps[x + p][p] == -1) {
			jumps[x + p][p] = 1 + j;
			q.emplace(x + p, p);
		}
		while(!P[x].empty()) {
			int k = P[x].back();
			P[x].pop_back();
			if(x >= k && jumps[x - k][k] == -1) {
				jumps[x - k][k] = 1 + j;
				q.emplace(x - k, k);
			}
			if(x + k < n && jumps[x + k][k] == -1) {
				jumps[x + k][k] = 1 + j;
				q.emplace(x + k, k);
			}
		}
	}

	if(cnt[x1] == INF) cout << "-1\n";
	else cout << cnt[x1] << '\n';
}

int main() {
	ios_base :: sync_with_stdio(false);
	cin.tie(0);
	int t = 1;
	//cin >> t;
	while(t--) solve();
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 2672 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 2 ms 2636 KB Output is correct
4 Correct 2 ms 2636 KB Output is correct
5 Correct 2 ms 2672 KB Output is correct
6 Correct 2 ms 2668 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 2636 KB Output is correct
2 Correct 2 ms 2636 KB Output is correct
3 Correct 2 ms 2636 KB Output is correct
4 Correct 2 ms 2636 KB Output is correct
5 Correct 1 ms 2668 KB Output is correct
6 Correct 1 ms 2636 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 2 ms 2636 KB Output is correct
9 Correct 2 ms 2568 KB Output is correct
10 Correct 1 ms 2636 KB Output is correct
11 Correct 2 ms 2764 KB Output is correct
12 Correct 4 ms 2636 KB Output is correct
13 Correct 5 ms 2676 KB Output is correct
14 Correct 3 ms 2892 KB Output is correct
15 Correct 3 ms 2892 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 2676 KB Output is correct
2 Correct 3 ms 2672 KB Output is correct
3 Correct 2 ms 2636 KB Output is correct
4 Correct 2 ms 2636 KB Output is correct
5 Correct 2 ms 2636 KB Output is correct
6 Correct 1 ms 2636 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 2 ms 2660 KB Output is correct
9 Correct 2 ms 2636 KB Output is correct
10 Correct 2 ms 2636 KB Output is correct
11 Correct 2 ms 2764 KB Output is correct
12 Correct 4 ms 2636 KB Output is correct
13 Correct 5 ms 2636 KB Output is correct
14 Correct 3 ms 2936 KB Output is correct
15 Correct 2 ms 2936 KB Output is correct
16 Correct 2 ms 2764 KB Output is correct
17 Correct 3 ms 3276 KB Output is correct
18 Correct 2 ms 3060 KB Output is correct
19 Correct 2 ms 3020 KB Output is correct
20 Correct 54 ms 2996 KB Output is correct
21 Correct 3 ms 2764 KB Output is correct
22 Correct 2 ms 3064 KB Output is correct
23 Correct 4 ms 3020 KB Output is correct
24 Correct 3 ms 3276 KB Output is correct
25 Correct 4 ms 3148 KB Output is correct
26 Correct 65 ms 3164 KB Output is correct
27 Correct 55 ms 3020 KB Output is correct
28 Correct 5 ms 3660 KB Output is correct
29 Correct 13 ms 5488 KB Output is correct
30 Correct 4 ms 3304 KB Output is correct
31 Correct 7 ms 4248 KB Output is correct
32 Correct 4 ms 3584 KB Output is correct
33 Correct 31 ms 8296 KB Output is correct
34 Correct 26 ms 8268 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 2636 KB Output is correct
2 Correct 1 ms 2672 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 1 ms 2672 KB Output is correct
5 Correct 2 ms 2748 KB Output is correct
6 Correct 2 ms 2672 KB Output is correct
7 Correct 1 ms 2640 KB Output is correct
8 Correct 2 ms 2636 KB Output is correct
9 Correct 2 ms 2636 KB Output is correct
10 Correct 2 ms 2672 KB Output is correct
11 Correct 2 ms 2764 KB Output is correct
12 Correct 4 ms 2636 KB Output is correct
13 Correct 4 ms 2636 KB Output is correct
14 Correct 3 ms 2892 KB Output is correct
15 Correct 3 ms 2892 KB Output is correct
16 Correct 2 ms 2764 KB Output is correct
17 Correct 4 ms 3276 KB Output is correct
18 Correct 3 ms 3020 KB Output is correct
19 Correct 2 ms 3020 KB Output is correct
20 Correct 53 ms 3016 KB Output is correct
21 Correct 2 ms 2764 KB Output is correct
22 Correct 2 ms 3020 KB Output is correct
23 Correct 3 ms 3020 KB Output is correct
24 Correct 5 ms 3404 KB Output is correct
25 Correct 3 ms 3148 KB Output is correct
26 Correct 61 ms 3156 KB Output is correct
27 Correct 61 ms 3020 KB Output is correct
28 Correct 6 ms 3660 KB Output is correct
29 Correct 13 ms 5540 KB Output is correct
30 Correct 4 ms 3404 KB Output is correct
31 Correct 8 ms 4248 KB Output is correct
32 Correct 5 ms 3560 KB Output is correct
33 Correct 29 ms 8316 KB Output is correct
34 Correct 26 ms 8320 KB Output is correct
35 Correct 27 ms 7808 KB Output is correct
36 Correct 4 ms 3532 KB Output is correct
37 Correct 55 ms 10488 KB Output is correct
38 Correct 40 ms 10308 KB Output is correct
39 Correct 54 ms 10148 KB Output is correct
40 Correct 40 ms 10180 KB Output is correct
41 Correct 43 ms 10384 KB Output is correct
42 Correct 956 ms 3568 KB Output is correct
43 Correct 912 ms 3840 KB Output is correct
44 Correct 766 ms 3392 KB Output is correct
45 Correct 231 ms 22596 KB Output is correct
46 Correct 216 ms 22596 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 2636 KB Output is correct
2 Correct 1 ms 2636 KB Output is correct
3 Correct 2 ms 2672 KB Output is correct
4 Correct 1 ms 2636 KB Output is correct
5 Correct 1 ms 2668 KB Output is correct
6 Correct 1 ms 2636 KB Output is correct
7 Correct 2 ms 2636 KB Output is correct
8 Correct 1 ms 2636 KB Output is correct
9 Correct 1 ms 2636 KB Output is correct
10 Correct 2 ms 2636 KB Output is correct
11 Correct 3 ms 2892 KB Output is correct
12 Correct 4 ms 2636 KB Output is correct
13 Correct 4 ms 2636 KB Output is correct
14 Correct 3 ms 2932 KB Output is correct
15 Correct 2 ms 2892 KB Output is correct
16 Correct 2 ms 2764 KB Output is correct
17 Correct 4 ms 3320 KB Output is correct
18 Correct 2 ms 3020 KB Output is correct
19 Correct 2 ms 2928 KB Output is correct
20 Correct 52 ms 3000 KB Output is correct
21 Correct 2 ms 2812 KB Output is correct
22 Correct 2 ms 3048 KB Output is correct
23 Correct 3 ms 3016 KB Output is correct
24 Correct 3 ms 3276 KB Output is correct
25 Correct 3 ms 3108 KB Output is correct
26 Correct 61 ms 3160 KB Output is correct
27 Correct 56 ms 3136 KB Output is correct
28 Correct 6 ms 3708 KB Output is correct
29 Correct 13 ms 5492 KB Output is correct
30 Correct 4 ms 3440 KB Output is correct
31 Correct 10 ms 4172 KB Output is correct
32 Correct 6 ms 3568 KB Output is correct
33 Correct 32 ms 8272 KB Output is correct
34 Correct 26 ms 8308 KB Output is correct
35 Correct 34 ms 7864 KB Output is correct
36 Correct 5 ms 3560 KB Output is correct
37 Correct 53 ms 10484 KB Output is correct
38 Correct 41 ms 10220 KB Output is correct
39 Correct 46 ms 10164 KB Output is correct
40 Correct 41 ms 10264 KB Output is correct
41 Correct 46 ms 10396 KB Output is correct
42 Correct 951 ms 3700 KB Output is correct
43 Correct 906 ms 3696 KB Output is correct
44 Correct 756 ms 3380 KB Output is correct
45 Correct 235 ms 22640 KB Output is correct
46 Correct 210 ms 22640 KB Output is correct
47 Correct 403 ms 35904 KB Output is correct
48 Correct 56 ms 13628 KB Output is correct
49 Correct 35 ms 10692 KB Output is correct
50 Correct 31 ms 10744 KB Output is correct
51 Correct 104 ms 17708 KB Output is correct
52 Correct 129 ms 18884 KB Output is correct
53 Correct 27 ms 9804 KB Output is correct
54 Correct 7 ms 6900 KB Output is correct
55 Correct 10 ms 7792 KB Output is correct
56 Execution timed out 1083 ms 7412 KB Time limit exceeded
57 Halted 0 ms 0 KB -