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Submission #96303

# Submission time Handle Problem Language Result Execution time Memory
96303 2019-02-08T09:33:57 Z figter001 Crocodile's Underground City (IOI11_crocodile) C++14
100 / 100
 780 ms 93432 KB 
#include "crocodile.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
const int maxn = 1e5+50;

vector<pair<int,ll>> g[maxn];
pair<ll,ll> cost[maxn];
int n;
bool e[maxn],vis[maxn];

void dij(){
	priority_queue<pair<ll,int>> q;
	for(int i=0;i<n;i++)
		cost[i] = {1e18,1e18};
	for(int i=0;i<n;i++)
		if(e[i]){
			cost[i] = {0,0};
			q.push({0,i});
		}
	while(q.size()){
		int u = q.top().second;
		ll cst = -q.top().first;
		q.pop();
		if(vis[u])continue;
		vis[u] = 1;
		for(pair<int,ll> cur : g[u]){
			int v = cur.first;
			ll w = cur.second;
			ll ncst = cst + w;
			if(cost[v].second <= ncst)continue;
			if(ncst < cost[v].first){
				cost[v].second = cost[v].first;
				cost[v].first = ncst;
			}else if(ncst < cost[v].second){
				cost[v].second = ncst;
			}
			q.push({-cost[v].second,v});
		}
	}
}

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]){
	n = N;
	for(int i=0;i<M;i++){
		int u = R[i][0];
		int v = R[i][1];
		int w = L[i];
		g[u].push_back({v,w});
		g[v].push_back({u,w});
	}
	for(int i=0;i<K;i++)
		e[P[i]] = 1;
	dij();
	return cost[0].second;
}

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 3 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2808 KB Output is correct
5 Correct 4 ms 2808 KB Output is correct
6 Correct 4 ms 2808 KB Output is correct
7 Correct 4 ms 2808 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 3 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2808 KB Output is correct
5 Correct 4 ms 2808 KB Output is correct
6 Correct 4 ms 2808 KB Output is correct
7 Correct 4 ms 2808 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 6 ms 3064 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 7 ms 3448 KB Output is correct
13 Correct 7 ms 3448 KB Output is correct
14 Correct 4 ms 2808 KB Output is correct
15 Correct 4 ms 2808 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 3 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2808 KB Output is correct
5 Correct 4 ms 2808 KB Output is correct
6 Correct 4 ms 2808 KB Output is correct
7 Correct 4 ms 2808 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 6 ms 3064 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 7 ms 3448 KB Output is correct
13 Correct 7 ms 3448 KB Output is correct
14 Correct 4 ms 2808 KB Output is correct
15 Correct 4 ms 2808 KB Output is correct
16 Correct 724 ms 84704 KB Output is correct
17 Correct 111 ms 20076 KB Output is correct
18 Correct 144 ms 22508 KB Output is correct
19 Correct 780 ms 93432 KB Output is correct
20 Correct 343 ms 67704 KB Output is correct
21 Correct 52 ms 10488 KB Output is correct
22 Correct 356 ms 64752 KB Output is correct