이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
// #pragma GCC target ("avx,avx2,fma")
// #pragma GCC optimize ("Ofast,inline") // O1 - O2 - O3 - Os - Ofast
// #pragma GCC optimize ("unroll-loops")
#include "roads.h"
#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, b) for (int i = (a); i < (b); ++i)
#define per(i, a, b) for (int i = (b - 1); i >= (a); --i)
#define trav(a, x) for (auto &a : x)
#define all(x) x.begin(), x.end()
#define sz(x) x.size()
#define pb push_back
#define debug(x) cout << #x << " = " << x << endl
#define umap unordered_map
#define uset unordered_set
typedef pair<int, int> ii;
typedef pair<int, ii> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<vi> vvi;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef vector<ll> vll;
typedef vector<pll> vpll;
const int INF = 1'000'000'007;
int n, k;
vii graph[2001];
ll memo[2001][2];
void dp(int u, int p) {
ll sum = 0;
vi diff;
trav(edge, graph[u]) if (edge.first != p) {
int v, w;
tie(v, w) = edge;
dp(v, u);
sum += memo[v][0];
diff.emplace_back((memo[v][1] + w) - memo[v][0]);
}
sort(all(diff));
memo[u][0] = memo[u][1] = -1;
int need_rem = (sz(graph[u])) - k;
if(sz(diff))assert(diff.back() < INF);
diff.emplace_back(INF);
trav(val, diff) {
if (need_rem <= 1 && val >= 0 && memo[u][1] == -1) memo[u][1] = sum;
if (need_rem <= 0 && val >= 0 && memo[u][0] == -1) memo[u][0] = sum;
sum += val;
--need_rem;
}
//cout<<"u = "<<u<<' '<<memo[u][0]<<' '<<memo[u][1]<<endl;
}
vector<long long> minimum_closure_costs(int N, vector<int> U, vector<int> V, vector<int> W) {
n = N;
vll ans(n, 0);
rep(i, 0, n - 1) {
ans[0] += W[i];
graph[U[i]].emplace_back(V[i], W[i]);
graph[V[i]].emplace_back(U[i], W[i]);
}
rep(i, 1, n) {
k = i;
dp(0, 0);
ans[i] = memo[0][0];
}
return ans;
}
/*
int main() {
int N;
assert(1 == scanf("%d", &N));
vector<int> U(N - 1), V(N - 1), W(N - 1);
for (int i = 0; i < N - 1; ++i) {
assert(3 == scanf("%d %d %d", &U[i], &V[i], &W[i]));
}
vector<long long> closure_costs = minimum_closure_costs(N, U, V, W);
for (int i = 0; i < static_cast<int>(closure_costs.size()); ++i) {
if (i > 0) {
printf(" ");
}
printf("%lld", closure_costs[i]);
}
printf("\n");
return 0;
}*/
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