Submission #976325

#	Time	Username	Problem	Language	Result	Execution time	Memory
976325		kwongweng	Cyberland (APIO23_cyberland)	C++17	0 / 100	154 ms	10264 KiB

cyberland

#include "cyberland.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef long double ld;
typedef vector<vector<ll>> vll;
#define FOR(i, a, b) for(int i = a; i < b; i++)
#define ROF(i, a, b) for(int i = a; i >= b; i--)
#define pb push_back
#define ms memset
#define fi first
#define se second

const int mxn = 1e5+1;
vector<pair<int,double>> g[mxn];
double solve(int N, int M, int K, int H, vi x, vi y, vi c, vi arr) {
    FOR(i,0,M){
        g[x[i]].pb({y[i],c[i]});
        g[y[i]].pb({x[i],c[i]});
    }
    vector<double> dist(N);
    set<pair<double,int>> st;
    st.insert({dist[0],0});
    FOR(i,1,N){
        if (arr[i]==0){
            st.insert({dist[i],i});
        }else{
            dist[i] = 1e18;
        }
    }
    while (!st.empty()){
        int u = (*st.begin()).se; st.erase(st.begin());
        for (ii edge : g[u]){
            int v = edge.fi; int w = edge.se;
            if (dist[v] > dist[u] + w){
                if (dist[v] < 1e18) st.erase({dist[v],v});
                dist[v] = dist[u]+w;
                st.insert({dist[v],v});
            }
        }
    }
    if (dist[H]==1e18) return -1;
    return (double)dist[H];
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 13
• Subtask 4: 0 / 19
• Subtask 5: 0 / 7
• Subtask 6: 0 / 16
• Subtask 7: 0 / 29
• Subtask 8: 0 / 3