4665 | 2023. 03. 30 18:37:33 | ZsofiaKeresztely | Útadó | cpp14 | Elfogadva 50/50 | 104ms | 19228 KiB |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
constexpr ll MOD = 32609;
#define fi first
#define se second
vector<vector<int> > g;
vector<int> p;
vector<pair<ll, int> > times;
ll n;
ll mul(ll a, ll b){
a %= MOD;
b %= MOD;
return a * b % MOD;
}
int dfs(int v){
ll r = 1;
for (int x : g[v]){
if (x == p[v]) continue;
p[x] = v;
r += dfs(x);
}
times[v].se = v;
times[v].fi = r * 2 * (n - r);
return r;
}
int main()
{
cin >> n;
g.resize(n+1);
p.resize(n+1);
times.resize(n+1);
for (int i=0; i<n-1; i++){
int a, b;
cin >> a >> b;
g[a].push_back(b);
g[b].push_back(a);
}
p[1] = 0;
dfs(1);
vector<ll> w(n+1, 0);
for (int i=2; i<=n; i++){
cin >> w[i];
}
sort(w.begin(), w.end());
sort(times.begin(), times.end());
ll op = 0;
for (int i=2; i<=n; i++){
op += mul(w[i], times[i].fi);
op %= MOD;
}
cout << op << "\n";
for (int i=2; i<=n; i++){
cout << times[i].se << " " << p[times[i].se] << " " << w[i] << "\n";
}
}
Részfeladat | Összpont | Teszt | Verdikt | Idő | Memória | ||
---|---|---|---|---|---|---|---|
base | 50/50 | ||||||
1 | Elfogadva | 0/0 | 3ms | 1816 KiB | |||
2 | Elfogadva | 0/0 | 39ms | 5192 KiB | |||
3 | Elfogadva | 2/2 | 3ms | 2228 KiB | |||
4 | Elfogadva | 2/2 | 3ms | 2340 KiB | |||
5 | Elfogadva | 2/2 | 3ms | 2536 KiB | |||
6 | Elfogadva | 2/2 | 3ms | 2748 KiB | |||
7 | Elfogadva | 2/2 | 3ms | 2964 KiB | |||
8 | Elfogadva | 8/8 | 97ms | 19228 KiB | |||
9 | Elfogadva | 2/2 | 4ms | 3448 KiB | |||
10 | Elfogadva | 2/2 | 4ms | 3660 KiB | |||
11 | Elfogadva | 2/2 | 4ms | 3712 KiB | |||
12 | Elfogadva | 2/2 | 4ms | 3864 KiB | |||
13 | Elfogadva | 2/2 | 4ms | 3820 KiB | |||
14 | Elfogadva | 2/2 | 97ms | 12100 KiB | |||
15 | Elfogadva | 2/2 | 97ms | 12060 KiB | |||
16 | Elfogadva | 2/2 | 97ms | 12064 KiB | |||
17 | Elfogadva | 2/2 | 97ms | 12316 KiB | |||
18 | Elfogadva | 2/2 | 97ms | 12272 KiB | |||
19 | Elfogadva | 2/2 | 96ms | 12272 KiB | |||
20 | Elfogadva | 2/2 | 100ms | 12340 KiB | |||
21 | Elfogadva | 2/2 | 97ms | 12344 KiB | |||
22 | Elfogadva | 2/2 | 97ms | 12344 KiB | |||
23 | Elfogadva | 2/2 | 97ms | 12556 KiB | |||
24 | Elfogadva | 2/2 | 104ms | 12544 KiB |