Submission #132710

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
132710	2019-07-19 11:37:12	youngyojun	Cat in a tree (BOI17_catinatree)	C++11	100 / 100	207 ms	16280 KiB

catinatree

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#include <bits/stdc++.h>
#define eb emplace_back
using namespace std;
const int MAXN = 200055;
vector<int> G[MAXN];
int prt[MAXN], dep[MAXN];
int A[MAXN], O[MAXN];
int N, D, Ans;
void f(int i) {
  if(A[i] < 2) return;
  int l = A[i]-1;
  for(int v : G[i]) if(A[v] < l) {
    A[v] = l;
    f(v);
  }
}
int main() {
  ios::sync_with_stdio(false);
  cin >> N >> D;
  for(int i = 1; i < N; i++) {
    cin >> prt[i];
    dep[i] = dep[prt[i]] + 1;
    G[prt[i]].eb(i);
    G[i].eb(prt[i]);
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 40 / 40
• Subtask 3: 49 / 49