Submission #882518

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
882518	2023-12-03 10:00:50	iskhakkutbilim	Construction of Highway (JOI18_construction)	C++17	7 / 100	2087 ms	22988 KiB

construction

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#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ff first
#define ss second
#define all(a) (a.begin(), a.end())
const int mod = 1e9 + 7;
const int N = 1e5;
int n, c[N+10];
vector<int> g[N+10], group[N+10];
int shortest[N+10];
int par[N+10];
signed main(){
  ios::sync_with_stdio(0);
  cin.tie(0); cout.tie(0);
  cin >> n;
  for(int i = 1;i <= n; i++){
    cin >> c[i];
    shortest[i] = -1;
  }
  int q = n-1;
  shortest[1] = 0;
  par[1] = -1; 
  group[1].push_back(1);
  while(q--){
    int a, b; cin >> a >> b;
    if(shortest[a] == -1 || shortest[b] > 0) continue;
    
    int cost = 0;
 
 
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• Subtask 1: 7 / 7
• Subtask 2: 0 / 9
• Subtask 3: 0 / 84