Submission #867994

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
867994	2023-10-30 06:23:58	TAhmed33	Stranded Far From Home (BOI22_island)	C++98	10 / 100	598 ms	524288 KiB

island

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#include <bits/stdc++.h>
using namespace std;
#define int long long
bool ok[200001];
vector <int> adj[200001];
int cnt[200001], sze[200001];
void dfs (int pos, int par) {
  sze[pos] = cnt[pos];
  for (auto j : adj[pos]) {
    if (j != par) {
      dfs(j, pos);
      sze[pos] += sze[j];
    }
  }
}
void dfs2 (int pos, int par) {
  if (par != -1) {
    if (sze[pos] < cnt[par]) return;
  }
  ok[pos] = 1;
  for (auto j : adj[pos]) if  (j != par) dfs2(j, pos);
}
signed main () {
  int n, m;
  cin >> n >> m;
  for (int i = 1; i <= n; i++) cin >> cnt[i];
  for (int i = 1; i < n; i++) {
    int a, b;
    cin >> a >> b;
    adj[a].push_back(b);
 
 
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• Subtask 1: 0 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 30
• Subtask 5: 0 / 35