Submission #230177

# Submission time Handle Problem Language Result Execution time Memory
230177 2020-05-08T22:58:13 Z MohamedAhmed04 Crocodile's Underground City (IOI11_crocodile) C++14
100 / 100
663 ms 45168 KB
//#include "grader.cpp"
#include "crocodile.h"
#include <bits/stdc++.h>

using namespace std ;

const int MAX = 1e5 + 10 ;

pair<int , int> dist[MAX] ;
vector< vector< pair<int , int> > >adj(MAX) ;

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
	memset(dist , -1 , sizeof(dist)) ;
	for(int i = 0 ; i < M ; ++i)
	{
		int x = R[i][0] , y = R[i][1] ;
		adj[x].push_back({y , L[i]*1ll}) ;
		adj[y].push_back({x, L[i] * 1ll}) ;
	}
	priority_queue< pair<int , int> , vector< pair<int , int> > , greater< pair<int , int> > >q ;
	for(int i = 0 ; i < K ; ++i)
	{
		dist[P[i]] = {0 , 0} ;
		q.push({0ll, P[i]}) ;
	}
	while(!q.empty())
	{
		pair<int, int>p = q.top() ;
		q.pop() ;
		int node = p.second ;
		int cost = p.first ;
		if(cost > dist[node].second)
			continue ;
		for(auto &child : adj[node])
		{
			int to = child.first ;
			int ncost = cost + child.second ;
			int prv = dist[to].second ;
			if(ncost < dist[to].first || dist[to].first == -1)
				dist[to].second = dist[to].first , dist[to].first = ncost ;
			else if(ncost < dist[to].second || dist[to].second == -1)
				dist[to].second = ncost ;
			if(dist[to].second < prv || (prv == -1 && dist[to].second != -1))
				q.push({dist[to].second, to}) ;
		}
	}
	return dist[0].second ;
}
# Verdict Execution time Memory Grader output
1 Correct 6 ms 3456 KB Output is correct
2 Correct 6 ms 3456 KB Output is correct
3 Correct 7 ms 3456 KB Output is correct
4 Correct 7 ms 3584 KB Output is correct
5 Correct 7 ms 3584 KB Output is correct
6 Correct 7 ms 3584 KB Output is correct
7 Correct 7 ms 3584 KB Output is correct
8 Correct 7 ms 3584 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 6 ms 3456 KB Output is correct
2 Correct 6 ms 3456 KB Output is correct
3 Correct 7 ms 3456 KB Output is correct
4 Correct 7 ms 3584 KB Output is correct
5 Correct 7 ms 3584 KB Output is correct
6 Correct 7 ms 3584 KB Output is correct
7 Correct 7 ms 3584 KB Output is correct
8 Correct 7 ms 3584 KB Output is correct
9 Correct 8 ms 3712 KB Output is correct
10 Correct 6 ms 3456 KB Output is correct
11 Correct 7 ms 3584 KB Output is correct
12 Correct 10 ms 3968 KB Output is correct
13 Correct 10 ms 3968 KB Output is correct
14 Correct 7 ms 3456 KB Output is correct
15 Correct 7 ms 3584 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 6 ms 3456 KB Output is correct
2 Correct 6 ms 3456 KB Output is correct
3 Correct 7 ms 3456 KB Output is correct
4 Correct 7 ms 3584 KB Output is correct
5 Correct 7 ms 3584 KB Output is correct
6 Correct 7 ms 3584 KB Output is correct
7 Correct 7 ms 3584 KB Output is correct
8 Correct 7 ms 3584 KB Output is correct
9 Correct 8 ms 3712 KB Output is correct
10 Correct 6 ms 3456 KB Output is correct
11 Correct 7 ms 3584 KB Output is correct
12 Correct 10 ms 3968 KB Output is correct
13 Correct 10 ms 3968 KB Output is correct
14 Correct 7 ms 3456 KB Output is correct
15 Correct 7 ms 3584 KB Output is correct
16 Correct 542 ms 41736 KB Output is correct
17 Correct 96 ms 10744 KB Output is correct
18 Correct 114 ms 12192 KB Output is correct
19 Correct 663 ms 45168 KB Output is correct
20 Correct 344 ms 37840 KB Output is correct
21 Correct 47 ms 7192 KB Output is correct
22 Correct 360 ms 32632 KB Output is correct