Submission #1072110

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1072110	2024-08-23 14:25:03	Icelast	Crocodile's Underground City (IOI11_crocodile)	C++17	100 / 100	503 ms	97028 KiB

crocodile

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#include "crocodile.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
const ll maxn = 2*1e5+5, INF = 4e18+9;
vector<pair<ll, ll>> dijkstra(vector<int> s, vector<vector<pair<ll, ll>>> &adj){
    int n = adj.size();
    vector<pair<ll, ll>> dist(n+1, {INF, INF});
    vector<bool> vis(n+1, false);
    priority_queue<pair<ll, ll>, vector<pair<ll, ll>>, greater<pair<ll, ll>>> pq;
    for(int i : s){
        dist[i] = {0, 0};
        pq.push({0, i});
    }
    while(!pq.empty()){
        ll d_u = pq.top().first;
        int u = pq.top().second;
        pq.pop();
        if(vis[u]){
            continue;
        }
        vis[u] = true;
        for(auto it : adj[u]){
            int v = it.first;
            ll w = it.second;
            if(vis[v]) continue;
            ll fetch = d_u+w;
            if(dist[v].first > fetch){
                swap(dist[v].first, fetch);
            }
 
 
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• Subtask 1: 46 / 46
• Subtask 2: 43 / 43
• Subtask 3: 11 / 11