Submission #970347

#	Time	Username	Problem	Language	Result	Execution time	Memory
970347		anton	Cyberland (APIO23_cyberland)	C++17	0 / 100	1839 ms	2097152 KiB

cyberland

#include "cyberland.h"
#include<bits/stdc++.h>

using namespace std;
#define ll long long
#define pii pair<int, int>

void dp(int u, int a, int d, vector<vector<pii>>& adj,vector<int>& arr, vector<int>& dis){
    if(arr[u] == 0){
        d =0;
    }
    dis[u] = d;
    for(auto e: adj[u]){
        if(e.first != a){
            dp(e.first, u, d + e.second, adj, arr, dis);
        }
    }
}

double solve(int N, int M, int K, int H, std::vector<int> x, std::vector<int> y, std::vector<int> c, std::vector<int> arr) {
    vector<vector<pii>> adj(N);
    for(int i = 0; i<M; i++){
        adj[x[i]].push_back({y[i], c[i]});
        adj[y[i]].push_back({x[i], c[i]});
    }
    vector<int> res(N);
    dp(0, -1, 0, adj, arr, res);

    return (double)(res[H]);

    
    return -1;
}

• 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