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Submission #1113912

# Submission time Handle Problem Language Result Execution time Memory
1113912 2024-11-17T19:21:10 Z raspy Jakarta Skyscrapers (APIO15_skyscraper) C++17
22 / 100
 95 ms 102928 KB 
	#include <bits/stdc++.h>
	 
	#define int long long
	#define vi vector<int>
	#define ii pair<int, int>
	#define f first
	#define s second
	#define all(x) (x).begin(), (x).end()
	#define P 31
	#define mod 1'000'000'007
	#define inf 1'000'000'000'000
	#define pb push_back
	#define str string
	#define sz(x) (x).size()
	#define vvi vector<vi>
	#define fun function
	#define oopt cin.tie(0);cout.tie(0);ios_base::sync_with_stdio(false);
	#define file freopen("problemname.in", "r", stdin); freopen("pr.out", "w", stdout);
	#define dbg(v) cout << "Line(" << __LINE__ << ") -> " << #v << " = " << (v) << endl;
	 
	using namespace std;
	template <class T, int SZ> using arr = array<T, SZ>;
	 
	int b[30001];
	int power[30001];
	set<int> pravi[30001];
	set<ii> graf[30001];
	int ob[30001];
	int obp[201][30001];
	 
	void solve()
	{
		int n, m;
		cin >> n >> m;
		for (int i = 0; i < 30001; i++)
		{
			ob[i] = inf;
			for (int j = 0; j < 201; j++)
				obp[j][i] = inf;
		}
		for (int i = 0; i < m; i++)
		{
			cin >> b[i] >> power[i];
			pravi[b[i]].insert(power[i]);
			if (power[i] > 200)
			{
				for (int j = 1; j*j <= n; j++)
				{
					if (b[i]+power[i]*j < n)
						graf[b[i]].insert({b[i]+power[i]*j, j});
					if (b[i]-power[i]*j >= 0)
						graf[b[i]].insert({b[i]-power[i]*j, j});
				}
			}
		}
		priority_queue<tuple<int, int, int>, vector<tuple<int, int, int>>, greater<tuple<int, int, int>>> pq;
		if (power[0] > 200)
		{
			pq.push({0, b[0], -1});
			ob[b[0]] = 0;
		}
		else
		{
			pq.push({0, b[0], power[0]});
			obp[b[0]][power[0]] = 0;
		}
		while (pq.size())
		{
			auto [d, pos, pow] = pq.top();
			pq.pop();
			if (pos == b[1])
			{
				cout << d << "\n";
				return;
			}
			if (pow > 200)
			{
				if (ob[pos] < d) continue;
				for (auto [p, w] : graf[pos])
				{
					if (ob[p] > d+w)
					{
						ob[p] = d+w;
						pq.push({d+w, p, pow});
					}
				}
				for (int p : pravi[pos])
				{
					if (obp[pos][p] > d)
					{
						obp[pos][p] = d;
						pq.push({d, pos, p});
					}
				}
			}
			else
			{
				if (obp[pow][pos] < d) continue;
				if (pos-pow >= 0 && obp[pow][pos-pow] > d+1)
				{
					obp[pow][pos-pow] = d+1;
					pq.push({d+1, pos-pow, pow});
				}
				if (pos+pow < n && obp[pow][pos+pow] > d+1)
				{
					obp[pow][pos+pow] = d+1;
					pq.push({d+1, pos+pow, pow});
				}
				if (ob[pos] == 0)
				{
					ob[pos] = d;
					pq.push({d, pos, -1});
				}
				for (int p : pravi[pos])
				{
					if (obp[p][pos] > d)
					{
						obp[p][pos] = d;
						pq.push({d, pos, p});
					}
				}
			}
		}
		cout << -1 << "\n";
	}
	 
	signed main()
	{
		oopt;
		int t = 1;
		// cin >> t;
		while (t--)
			solve();
		return 0;
	}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 50512 KB Output is correct
2 Correct 27 ms 50508 KB Output is correct
3 Correct 26 ms 50704 KB Output is correct
4 Correct 27 ms 50512 KB Output is correct
5 Correct 25 ms 50512 KB Output is correct
6 Correct 28 ms 50504 KB Output is correct
7 Correct 27 ms 50516 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 50512 KB Output is correct
2 Correct 24 ms 50460 KB Output is correct
3 Correct 29 ms 50508 KB Output is correct
4 Correct 27 ms 50512 KB Output is correct
5 Correct 26 ms 50512 KB Output is correct
6 Correct 27 ms 50496 KB Output is correct
7 Correct 28 ms 50516 KB Output is correct
8 Correct 32 ms 50512 KB Output is correct
9 Correct 30 ms 50512 KB Output is correct
10 Correct 34 ms 50504 KB Output is correct
11 Correct 29 ms 50776 KB Output is correct
12 Correct 30 ms 50576 KB Output is correct
13 Correct 25 ms 50604 KB Output is correct
14 Correct 28 ms 50768 KB Output is correct
15 Correct 30 ms 50728 KB Output is correct

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 50512 KB Output is correct
2 Correct 25 ms 50504 KB Output is correct
3 Correct 27 ms 50512 KB Output is correct
4 Correct 27 ms 50512 KB Output is correct
5 Correct 25 ms 50512 KB Output is correct
6 Correct 27 ms 50584 KB Output is correct
7 Correct 26 ms 50512 KB Output is correct
8 Correct 26 ms 50608 KB Output is correct
9 Correct 25 ms 50512 KB Output is correct
10 Correct 28 ms 50768 KB Output is correct
11 Correct 30 ms 50768 KB Output is correct
12 Correct 26 ms 50508 KB Output is correct
13 Correct 27 ms 50512 KB Output is correct
14 Correct 30 ms 50760 KB Output is correct
15 Correct 26 ms 50768 KB Output is correct
16 Correct 28 ms 50544 KB Output is correct
17 Runtime error 90 ms 102752 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 50512 KB Output is correct
2 Correct 26 ms 50512 KB Output is correct
3 Correct 24 ms 50588 KB Output is correct
4 Correct 26 ms 50512 KB Output is correct
5 Correct 25 ms 50512 KB Output is correct
6 Correct 26 ms 50512 KB Output is correct
7 Correct 27 ms 50588 KB Output is correct
8 Correct 28 ms 50504 KB Output is correct
9 Correct 27 ms 50540 KB Output is correct
10 Correct 26 ms 50504 KB Output is correct
11 Correct 29 ms 50760 KB Output is correct
12 Correct 30 ms 50512 KB Output is correct
13 Correct 27 ms 50516 KB Output is correct
14 Correct 30 ms 50768 KB Output is correct
15 Correct 29 ms 50776 KB Output is correct
16 Correct 27 ms 50768 KB Output is correct
17 Runtime error 95 ms 102700 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 50512 KB Output is correct
2 Correct 29 ms 50512 KB Output is correct
3 Correct 31 ms 50512 KB Output is correct
4 Correct 28 ms 50512 KB Output is correct
5 Correct 25 ms 50512 KB Output is correct
6 Correct 25 ms 50592 KB Output is correct
7 Correct 23 ms 50512 KB Output is correct
8 Correct 30 ms 50512 KB Output is correct
9 Correct 31 ms 50512 KB Output is correct
10 Correct 30 ms 50768 KB Output is correct
11 Correct 30 ms 50760 KB Output is correct
12 Correct 31 ms 50512 KB Output is correct
13 Correct 29 ms 50504 KB Output is correct
14 Correct 30 ms 50784 KB Output is correct
15 Correct 27 ms 50768 KB Output is correct
16 Correct 28 ms 50728 KB Output is correct
17 Runtime error 94 ms 102928 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -