Submission #538073

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
538073	2022-03-16 04:55:43	fhvirus	Long Mansion (JOI17_long_mansion)	C++17	100 / 100	279 ms	43384 KiB

long_mansion

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// jiaqiyang orz
// solution adapted from his/her submission
#include<bits/stdc++.h>
using namespace std;
const int kN = 500005;
int N, Q, C[kN], B[kN];
vector<int> A[kN];
int prv[kN], nxt[kN], occ[kN];
int lb[kN], rb[kN];
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0); cout.tie(0);
  cin >> N;
  for (int i = 1; i < N; ++i)
    cin >> C[i];
  for (int i = 1; i <= N; ++i) {
    cin >> B[i];
    A[i].resize(B[i]);
    for (int& a: A[i])
      cin >> a;
  }
  for (int i = 1; i < N; ++i) {
    for (const int& a: A[i])
      occ[a] = i;
    prv[i] = occ[C[i]];
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 15 / 15
• Subtask 4: 75 / 75