oj.uz

Submission #170848

# Submission time Handle Problem Language Result Execution time Memory
170848 2019-12-26T14:38:21 Z Nightmar Jakarta Skyscrapers (APIO15_skyscraper) C++17
10 / 100
 4 ms 380 KB 
#include <iostream>
#include <algorithm>
#include <cmath>
#include <string>
#include <cstdlib>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <cstdio>
#include <iomanip>
 
#define SWS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define pb push_back
#define ppb pop_back
#define ft first
#define sd second
#define read freopen("input.txt", "r", stdin)
#define write freopen("output.txt", "w", stdout)
#define files read; write
 
using namespace std;
 
typedef long long ll;
typedef pair<int, int> pii;
 
const int Z = (int)2e3 + 228;
const int N = (int)3e5 + 228;
const int INF = (int)1e9 + 228;
const int MOD = (int)1e9 + 7;
const ll LLINF = (ll)1e15 + 228;

int main()
{
	SWS;
	//files;
	int n, m;
	cin >> n >> m;
	vector<pii> v;
	for (int i = 0; i < m; i++)
	{
		int b, p;
		cin >> b >> p;
		v.pb({b, p});
	}
	set<pii> Q;
	Q.insert({0, 0});
	vector<int> dist(n, INF);
	dist[0] = 0;
	while (!Q.empty())
	{
		int ind = Q.begin()->sd;
		int now = Q.begin()->ft;
		Q.erase(Q.begin());
		for (int i = 0; i < m; i++)
			if (abs(v[i].ft - v[ind].ft) % v[ind].sd == 0)
			{
				int steps = abs(v[i].ft - v[ind].ft) / v[ind].sd;
				if (now + steps < dist[v[i].ft])
				{
					Q.erase({dist[v[i].ft], i});
					dist[v[i].ft] = now + steps;
					Q.insert({dist[v[i].ft], i});
				}
			}
	}
	if (dist[v[1].ft] != INF) cout << dist[v[1].ft];
	else cout << -1;
	return 0;
}
/*
*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 4 ms 376 KB Output is correct
7 Correct 2 ms 380 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Incorrect 2 ms 376 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Incorrect 2 ms 376 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Incorrect 2 ms 376 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Incorrect 2 ms 376 KB Output isn't correct
10 Halted 0 ms 0 KB -