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Submission #282290

# Submission time Handle Problem Language Result Execution time Memory
282290 2020-08-24T08:53:19 Z peijar Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 972 ms 25984 KB 
#include <bits/stdc++.h>
using namespace std;

#define SZ(v) ((int)(v).size())
using ll = long long;

const int MAX = 3e4;
const int SQRT = 175;

int nbSauts[MAX][SQRT+1];

struct Situation
{
	int building, power, sauts;

	bool operator<(Situation other) const
	{
		return sauts > other.sauts;
	}
};

int main(void)
{
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	
	int nbBat, nbDog;
	cin >> nbBat >> nbDog;

	vector<pair<int, int> > dogs(nbDog);
	set<int> dogsInBat[MAX];
	for (auto &[bat, pow] : dogs)
	{
		cin >> bat >> pow;
		dogsInBat[bat].insert(pow);
	}
	
	for (int i(0); i < nbBat; ++i)
		for (int j(0); j <= SQRT; ++j)
			nbSauts[i][j] = 1e9;
	nbSauts[dogs[0].first][SQRT] = 0;

	priority_queue<Situation> q;
	q.push({dogs[0].first, SQRT, 0});
	while (SZ(q))
	{
		auto situ = q.top(); q.pop();

		if (situ.building == dogs[1].first)
		{
			cout << situ.sauts << endl;
			return 0;
		}
		if (situ.sauts > nbSauts[situ.building][situ.power])
			continue ;
		if (situ.power == SQRT)
		{
			for (auto p : dogsInBat[situ.building])
			{
				if (p < SQRT)
				{
					if (situ.building - p >= 0 and nbSauts[situ.building-p][p] > situ.sauts+1)
					{
						q.push({situ.building-p, p, situ.sauts+1});
						nbSauts[situ.building-p][p] = situ.sauts + 1;
					}
					if (situ.building+p < nbBat and nbSauts[situ.building+p][p]>situ.sauts+1)
					{
						q.push({situ.building+p, p, situ.sauts+1});
						nbSauts[situ.building+p][p] = situ.sauts + 1;
					}
				}
				else
				{
					for (int i(1); p * i + situ.building < nbBat; ++i)
					{
						if (nbSauts[situ.building+i*p][SQRT] > situ.sauts+i)
						{
							q.push({situ.building+i*p, SQRT, situ.sauts + i});
							nbSauts[situ.building+i*p][SQRT] = situ.sauts + i;
						}
					}
					for (int i(-1); p*i + situ.building >= 0; --i)
					{
						if (nbSauts[situ.building+i*p][SQRT] > situ.sauts-i)
						{
							q.push({situ.building+i*p, SQRT, situ.sauts - i});
							nbSauts[situ.building+i*p][SQRT] = situ.sauts -i;
						}
					}
				}
			}
		}
		else
		{
			int p = situ.power;
			if (situ.building - p >= 0 and nbSauts[situ.building-p][p] > situ.sauts+1)
			{
				q.push({situ.building-p, p, situ.sauts+1});
				nbSauts[situ.building-p][p] = situ.sauts + 1;
			}
			if (situ.building+p < nbBat and nbSauts[situ.building+p][p] > situ.sauts+1)
			{
				q.push({situ.building+p, p,situ.sauts+1});
				nbSauts[situ.building+p][p] = situ.sauts + 1;
			}
			if (nbSauts[situ.building][SQRT] > situ.sauts)
			{
				nbSauts[situ.building][SQRT] = situ.sauts;
				q.push({situ.building, SQRT, situ.sauts});
			}
		}
	}
	cout << -1 << endl;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1792 KB Output is correct
2 Correct 1 ms 1792 KB Output is correct
3 Correct 1 ms 1792 KB Output is correct
4 Correct 1 ms 1792 KB Output is correct
5 Correct 1 ms 1792 KB Output is correct
6 Correct 1 ms 1792 KB Output is correct
7 Correct 1 ms 1792 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1792 KB Output is correct
2 Correct 1 ms 1664 KB Output is correct
3 Correct 1 ms 1792 KB Output is correct
4 Correct 1 ms 1792 KB Output is correct
5 Correct 1 ms 1792 KB Output is correct
6 Correct 1 ms 1792 KB Output is correct
7 Correct 1 ms 1792 KB Output is correct
8 Correct 1 ms 1792 KB Output is correct
9 Correct 1 ms 1792 KB Output is correct
10 Correct 1 ms 1792 KB Output is correct
11 Correct 3 ms 1920 KB Output is correct
12 Correct 2 ms 1792 KB Output is correct
13 Correct 2 ms 1792 KB Output is correct
14 Correct 2 ms 2048 KB Output is correct
15 Correct 3 ms 2048 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1792 KB Output is correct
2 Correct 2 ms 1792 KB Output is correct
3 Correct 1 ms 1792 KB Output is correct
4 Correct 1 ms 1792 KB Output is correct
5 Correct 1 ms 1792 KB Output is correct
6 Correct 1 ms 1792 KB Output is correct
7 Correct 2 ms 1792 KB Output is correct
8 Correct 1 ms 1792 KB Output is correct
9 Correct 1 ms 1792 KB Output is correct
10 Correct 2 ms 1792 KB Output is correct
11 Correct 2 ms 1920 KB Output is correct
12 Correct 2 ms 1792 KB Output is correct
13 Correct 2 ms 1792 KB Output is correct
14 Correct 3 ms 2048 KB Output is correct
15 Correct 2 ms 2048 KB Output is correct
16 Correct 2 ms 1920 KB Output is correct
17 Correct 2 ms 2432 KB Output is correct
18 Correct 2 ms 2944 KB Output is correct
19 Correct 2 ms 3200 KB Output is correct
20 Correct 3 ms 3200 KB Output is correct
21 Correct 2 ms 2048 KB Output is correct
22 Correct 3 ms 2944 KB Output is correct
23 Correct 3 ms 2944 KB Output is correct
24 Correct 3 ms 3200 KB Output is correct
25 Correct 3 ms 3200 KB Output is correct
26 Correct 3 ms 3200 KB Output is correct
27 Correct 3 ms 3200 KB Output is correct
28 Correct 4 ms 3200 KB Output is correct
29 Correct 7 ms 3200 KB Output is correct
30 Correct 3 ms 3200 KB Output is correct
31 Correct 5 ms 3200 KB Output is correct
32 Correct 4 ms 3200 KB Output is correct
33 Correct 13 ms 3328 KB Output is correct
34 Correct 9 ms 3328 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1792 KB Output is correct
2 Correct 1 ms 1792 KB Output is correct
3 Correct 1 ms 1792 KB Output is correct
4 Correct 1 ms 1792 KB Output is correct
5 Correct 1 ms 1792 KB Output is correct
6 Correct 1 ms 1792 KB Output is correct
7 Correct 1 ms 1792 KB Output is correct
8 Correct 1 ms 1792 KB Output is correct
9 Correct 1 ms 1792 KB Output is correct
10 Correct 1 ms 1792 KB Output is correct
11 Correct 3 ms 1920 KB Output is correct
12 Correct 2 ms 1920 KB Output is correct
13 Correct 2 ms 1792 KB Output is correct
14 Correct 3 ms 2048 KB Output is correct
15 Correct 2 ms 2048 KB Output is correct
16 Correct 2 ms 1920 KB Output is correct
17 Correct 2 ms 2432 KB Output is correct
18 Correct 2 ms 2944 KB Output is correct
19 Correct 2 ms 3200 KB Output is correct
20 Correct 3 ms 3200 KB Output is correct
21 Correct 2 ms 2048 KB Output is correct
22 Correct 3 ms 2944 KB Output is correct
23 Correct 3 ms 2944 KB Output is correct
24 Correct 3 ms 3200 KB Output is correct
25 Correct 4 ms 3200 KB Output is correct
26 Correct 3 ms 3200 KB Output is correct
27 Correct 3 ms 3200 KB Output is correct
28 Correct 4 ms 3200 KB Output is correct
29 Correct 7 ms 3200 KB Output is correct
30 Correct 3 ms 3072 KB Output is correct
31 Correct 5 ms 3200 KB Output is correct
32 Correct 4 ms 3200 KB Output is correct
33 Correct 13 ms 3328 KB Output is correct
34 Correct 8 ms 3328 KB Output is correct
35 Correct 12 ms 4352 KB Output is correct
36 Correct 3 ms 2816 KB Output is correct
37 Correct 10 ms 4352 KB Output is correct
38 Correct 13 ms 4864 KB Output is correct
39 Correct 13 ms 4736 KB Output is correct
40 Correct 13 ms 4736 KB Output is correct
41 Correct 15 ms 5120 KB Output is correct
42 Correct 7 ms 3328 KB Output is correct
43 Correct 7 ms 3328 KB Output is correct
44 Correct 7 ms 3456 KB Output is correct
45 Correct 49 ms 5312 KB Output is correct
46 Correct 30 ms 5312 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1792 KB Output is correct
2 Correct 1 ms 1792 KB Output is correct
3 Correct 1 ms 1792 KB Output is correct
4 Correct 1 ms 1792 KB Output is correct
5 Correct 1 ms 1792 KB Output is correct
6 Correct 1 ms 1792 KB Output is correct
7 Correct 1 ms 1792 KB Output is correct
8 Correct 1 ms 1792 KB Output is correct
9 Correct 1 ms 1792 KB Output is correct
10 Correct 1 ms 1792 KB Output is correct
11 Correct 2 ms 1920 KB Output is correct
12 Correct 2 ms 1792 KB Output is correct
13 Correct 2 ms 1792 KB Output is correct
14 Correct 3 ms 2048 KB Output is correct
15 Correct 2 ms 2048 KB Output is correct
16 Correct 2 ms 1920 KB Output is correct
17 Correct 2 ms 2432 KB Output is correct
18 Correct 2 ms 2944 KB Output is correct
19 Correct 2 ms 3200 KB Output is correct
20 Correct 3 ms 3200 KB Output is correct
21 Correct 2 ms 2048 KB Output is correct
22 Correct 2 ms 2944 KB Output is correct
23 Correct 3 ms 2944 KB Output is correct
24 Correct 3 ms 3200 KB Output is correct
25 Correct 3 ms 3200 KB Output is correct
26 Correct 3 ms 3200 KB Output is correct
27 Correct 3 ms 3200 KB Output is correct
28 Correct 3 ms 3200 KB Output is correct
29 Correct 7 ms 3200 KB Output is correct
30 Correct 4 ms 3200 KB Output is correct
31 Correct 5 ms 3200 KB Output is correct
32 Correct 5 ms 3200 KB Output is correct
33 Correct 13 ms 3328 KB Output is correct
34 Correct 9 ms 3328 KB Output is correct
35 Correct 13 ms 4352 KB Output is correct
36 Correct 3 ms 2816 KB Output is correct
37 Correct 10 ms 4352 KB Output is correct
38 Correct 15 ms 4864 KB Output is correct
39 Correct 13 ms 4768 KB Output is correct
40 Correct 16 ms 4736 KB Output is correct
41 Correct 18 ms 4992 KB Output is correct
42 Correct 7 ms 3328 KB Output is correct
43 Correct 8 ms 3328 KB Output is correct
44 Correct 7 ms 3456 KB Output is correct
45 Correct 51 ms 5312 KB Output is correct
46 Correct 31 ms 5312 KB Output is correct
47 Correct 20 ms 12096 KB Output is correct
48 Correct 21 ms 18944 KB Output is correct
49 Correct 19 ms 20352 KB Output is correct
50 Correct 19 ms 21760 KB Output is correct
51 Correct 33 ms 24504 KB Output is correct
52 Correct 34 ms 24512 KB Output is correct
53 Correct 25 ms 24056 KB Output is correct
54 Correct 15 ms 22400 KB Output is correct
55 Correct 15 ms 22400 KB Output is correct
56 Correct 24 ms 24064 KB Output is correct
57 Correct 15 ms 22528 KB Output is correct
58 Correct 23 ms 22656 KB Output is correct
59 Correct 22 ms 22656 KB Output is correct
60 Correct 22 ms 22656 KB Output is correct
61 Correct 23 ms 22784 KB Output is correct
62 Correct 49 ms 24064 KB Output is correct
63 Correct 72 ms 25712 KB Output is correct
64 Correct 82 ms 25712 KB Output is correct
65 Correct 285 ms 25720 KB Output is correct
66 Correct 972 ms 25836 KB Output is correct
67 Correct 389 ms 25984 KB Output is correct