제출 #934577

#제출 시각아이디문제언어결과실행 시간메모리
934577MinaRagy06도로 폐쇄 (APIO21_roads)C++17
0 / 100
22 ms6636 KiB
#include <bits/stdc++.h>
#ifdef MINA
#include "grader.cpp"
#endif
#include "roads.h"
using namespace std;
#define ll long long

const int N = 2005;
int t[N], curt;
vector<array<int, 2>> adj[N];
void build(int i, int p) {
	t[i] = curt++;
	vector<array<int, 2>> newadj;
	for (auto &[nxt, w] : adj[i]) {
		if (nxt == p) continue;
		build(nxt, i);
		newadj.push_back({t[nxt], w});
	}
	adj[i] = newadj;
}
vector<vector<int>> dp[N];
vector<ll> minimum_closure_costs(int n, vector<int> u, vector<int> v, vector<int> w) {
	for (int i = 0; i < n - 1; i++) {
		adj[u[i]].push_back({v[i], w[i]});
		adj[v[i]].push_back({u[i], w[i]});
	}
	build(0, -1);
	sort(adj[0].begin(), adj[0].end(), [&] (array<int, 2> x, array<int, 2> y) {
		return x[1] < y[1];
			});
	vector<ll> ret(n);
	ll s = 0;
	for (int i = n - 1; i >= 0; i--) {
		ret[i] = s;
		if (i > 0) s += adj[0][n - 1 - i][1];
	}
	return ret;
}
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