oj.uz

답안 #140305

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
140305 2019-08-02T13:54:38 Z nhc7502 날다람쥐 (JOI14_ho_t4) C++14
25 / 100
 2000 ms 15352 KB 
///EVERYONE BELIEVE IN GODTAEGYU
#include<bits/stdc++.h>
using namespace std;
int n, m, i, j, k;
int x, h[100141];
vector<pair<int,int>>graph[100141];
map<pair<int,int>, int>dist;
priority_queue<pair<int,pair<int,int>>>pq;

void f(int tree, int godo, int thist)
{
	if(dist.find({tree, godo}) == dist.end())
	{
		dist[{tree, godo}] = thist;
		pq.push({thist, {tree, godo}});
	}
	else if(dist[{tree, godo}] > thist)
	{
		dist[{tree, godo}] = thist;
		pq.push({thist, {tree, godo}});
	}
}

int main(){
	iostream::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	for(cin>>n>>m>>x; i<n;)
	{
		cin>>h[++i];
	}
	for(;m--;)
	{
		cin>>i>>j>>k;
		if(h[i] >= k)
			graph[i].push_back({j, k});
		if(h[j] >= k)
			graph[j].push_back({i, k});
	}
	dist[{1, x}] = 0;
	pq.push({0,{1,x}});
	while(!pq.empty())
	{
		x = pq.top().first;
		tie(m, i) = pq.top().second;
		pq.pop();
		if(dist[{m, i}] != x)
			continue;
		for(auto next : graph[m])
		{	//m = 현재 나무, i = 현재 높이, j = 다음 나무, k = 다음 나무 거리
			tie(j, k) = next;
			if(i < k) f(j, 0, x + k - i + k);
			else if(i - k > h[j]) f(j, h[j], x + i - h[j]);
			else f(j, i - k, x + k);
		}
		if(m == n)
			f(n, h[n], x + h[n] - i);
	}
	if(dist.find({n, h[n]}) == dist.end())
		cout<<-1;
	else cout<<dist[{n,h[n]}];
	return 0;
}

Subtask #1
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 2680 KB Output is correct
2 Correct 150 ms 2936 KB Output is correct
3 Correct 122 ms 2896 KB Output is correct
4 Correct 13 ms 2812 KB Output is correct
5 Correct 47 ms 2936 KB Output is correct
6 Correct 5 ms 2680 KB Output is correct
7 Correct 2 ms 2680 KB Output is correct
8 Correct 152 ms 2900 KB Output is correct
9 Correct 85 ms 2936 KB Output is correct
10 Correct 107 ms 2940 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 163 ms 2900 KB Output is correct
13 Correct 151 ms 2808 KB Output is correct
14 Correct 22 ms 2788 KB Output is correct
15 Correct 123 ms 2936 KB Output is correct
16 Correct 6 ms 2680 KB Output is correct
17 Correct 5 ms 2776 KB Output is correct
18 Correct 5 ms 2808 KB Output is correct
19 Correct 7 ms 2808 KB Output is correct
20 Correct 6 ms 2808 KB Output is correct

Subtask #2
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2036 ms 15352 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 2680 KB Output is correct
2 Correct 150 ms 2936 KB Output is correct
3 Correct 122 ms 2896 KB Output is correct
4 Correct 13 ms 2812 KB Output is correct
5 Correct 47 ms 2936 KB Output is correct
6 Correct 5 ms 2680 KB Output is correct
7 Correct 2 ms 2680 KB Output is correct
8 Correct 152 ms 2900 KB Output is correct
9 Correct 85 ms 2936 KB Output is correct
10 Correct 107 ms 2940 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 163 ms 2900 KB Output is correct
13 Correct 151 ms 2808 KB Output is correct
14 Correct 22 ms 2788 KB Output is correct
15 Correct 123 ms 2936 KB Output is correct
16 Correct 6 ms 2680 KB Output is correct
17 Correct 5 ms 2776 KB Output is correct
18 Correct 5 ms 2808 KB Output is correct
19 Correct 7 ms 2808 KB Output is correct
20 Correct 6 ms 2808 KB Output is correct
21 Execution timed out 2036 ms 15352 KB Time limit exceeded
22 Halted 0 ms 0 KB -