oj.uz

Submission #791156

# Submission time Handle Problem Language Result Execution time Memory
791156 2023-07-23T13:22:08 Z shoryu386 Crocodile's Underground City (IOI11_crocodile) C++17
89 / 100
 636 ms 86276 KB 
#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;
int travel_plan(int n, int m, int edges[][2], int weights[], int exitCount, int exits[]){
	#define ll long long
	ll incoming[n];
	multiset<ll> dist[n];
	memset(incoming, 0, sizeof(incoming));
	
	for (ll x = 0; x < n; x++) dist[x].insert(LLONG_MAX/20),dist[x].insert(LLONG_MAX/20);
	
	priority_queue<pair<ll, ll>, vector<pair<ll, ll>>, greater<pair<ll, ll>>> pq; //for those who have fulfilled the incoming >= 2 req
	
	
	#define distUpdate(k, newval) dist[k].insert(newval); dist[k].erase(prev(dist[k].end()))
	
	for (ll x = 0; x < exitCount; x++){
		distUpdate(exits[x], 0);
		distUpdate(exits[x], 0);
		

		
		pq.push({0, exits[x]});
	}
	
	vector<pair<ll, ll>> adjList[n];
	for (ll x = 0; x < m; x++){
		adjList[edges[x][0]].push_back({edges[x][1], weights[x]});
		adjList[edges[x][1]].push_back({edges[x][0], weights[x]});
	}
	
	while (!pq.empty()){
		
		ll d = pq.top().first, node = pq.top().second;
		pq.pop();
		//cout << node << ' ' << d << '\n';
		
		if (d > *prev(dist[node].end())) continue;
		
		for (auto x : adjList[node]){
			//cout << x.first << "upd\n";
			ll prevSecond = *prev(dist[x.first].end());
			
			
			
			if ( d + x.second < prevSecond){ //i.e. distUpdate was successful
				incoming[x.first]++;
				distUpdate(x.first, d + x.second);
				
				
				if (incoming[x.first] >= 2) pq.push({*prev(dist[x.first].end()), x.first});
			}
		}
	}
	
	return *prev(dist[0].end());
	
}

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 2 ms 724 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 480 KB Output is correct
12 Correct 3 ms 980 KB Output is correct
13 Correct 3 ms 980 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 2 ms 724 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 480 KB Output is correct
12 Correct 3 ms 980 KB Output is correct
13 Correct 3 ms 980 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 351 ms 70804 KB Output is correct
17 Correct 77 ms 27596 KB Output is correct
18 Correct 102 ms 29880 KB Output is correct
19 Correct 636 ms 86276 KB Output is correct
20 Correct 233 ms 53068 KB Output is correct
21 Correct 39 ms 10660 KB Output is correct
22 Incorrect 252 ms 52160 KB Output isn't correct
23 Halted 0 ms 0 KB -