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Submission #1114105

# Submission time Handle Problem Language Result Execution time Memory
1114105 2024-11-18T07:57:25 Z raspy Jakarta Skyscrapers (APIO15_skyscraper) C++17
22 / 100
 100 ms 102728 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];
		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});
			}
		}
		else
		{
			pravi[b[i]].insert(power[i]);
		}
	}
	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 || pow == -1)
		{
			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, -1});
				}
			}
			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 25 ms 50504 KB Output is correct
2 Correct 28 ms 50532 KB Output is correct
3 Correct 30 ms 50512 KB Output is correct
4 Correct 32 ms 50504 KB Output is correct
5 Correct 33 ms 50524 KB Output is correct
6 Correct 32 ms 50648 KB Output is correct
7 Correct 29 ms 50504 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 50508 KB Output is correct
2 Correct 30 ms 50504 KB Output is correct
3 Correct 28 ms 50512 KB Output is correct
4 Correct 37 ms 50760 KB Output is correct
5 Correct 28 ms 50504 KB Output is correct
6 Correct 30 ms 50672 KB Output is correct
7 Correct 27 ms 50580 KB Output is correct
8 Correct 28 ms 50472 KB Output is correct
9 Correct 30 ms 50508 KB Output is correct
10 Correct 26 ms 50768 KB Output is correct
11 Correct 27 ms 50720 KB Output is correct
12 Correct 26 ms 50772 KB Output is correct
13 Correct 29 ms 50684 KB Output is correct
14 Correct 28 ms 50768 KB Output is correct
15 Correct 28 ms 50764 KB Output is correct

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 50504 KB Output is correct
2 Correct 30 ms 50504 KB Output is correct
3 Correct 30 ms 50512 KB Output is correct
4 Correct 31 ms 50512 KB Output is correct
5 Correct 32 ms 50712 KB Output is correct
6 Correct 32 ms 50528 KB Output is correct
7 Correct 31 ms 50504 KB Output is correct
8 Correct 31 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 31 ms 50820 KB Output is correct
12 Correct 30 ms 50768 KB Output is correct
13 Correct 29 ms 50776 KB Output is correct
14 Correct 30 ms 50760 KB Output is correct
15 Correct 34 ms 50768 KB Output is correct
16 Correct 27 ms 50760 KB Output is correct
17 Runtime error 94 ms 102728 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 30 ms 50616 KB Output is correct
3 Correct 31 ms 50460 KB Output is correct
4 Correct 28 ms 50508 KB Output is correct
5 Correct 28 ms 50512 KB Output is correct
6 Correct 28 ms 50508 KB Output is correct
7 Correct 28 ms 50692 KB Output is correct
8 Correct 30 ms 50504 KB Output is correct
9 Correct 28 ms 50512 KB Output is correct
10 Correct 26 ms 50644 KB Output is correct
11 Correct 28 ms 50928 KB Output is correct
12 Correct 27 ms 50532 KB Output is correct
13 Correct 31 ms 50672 KB Output is correct
14 Correct 31 ms 50764 KB Output is correct
15 Correct 30 ms 50800 KB Output is correct
16 Correct 28 ms 50768 KB Output is correct
17 Runtime error 97 ms 102640 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 29 ms 50512 KB Output is correct
2 Correct 31 ms 50684 KB Output is correct
3 Correct 29 ms 50512 KB Output is correct
4 Correct 33 ms 50504 KB Output is correct
5 Correct 28 ms 50504 KB Output is correct
6 Correct 33 ms 50720 KB Output is correct
7 Correct 30 ms 50512 KB Output is correct
8 Correct 31 ms 50504 KB Output is correct
9 Correct 29 ms 50504 KB Output is correct
10 Correct 30 ms 50512 KB Output is correct
11 Correct 31 ms 50640 KB Output is correct
12 Correct 29 ms 50504 KB Output is correct
13 Correct 30 ms 50760 KB Output is correct
14 Correct 35 ms 51036 KB Output is correct
15 Correct 31 ms 50768 KB Output is correct
16 Correct 30 ms 50768 KB Output is correct
17 Runtime error 100 ms 102728 KB Execution killed with signal 11
18 Halted 0 ms 0 KB -