Submission #414003

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
414003	2021-05-29 18:37:47	flashmt	Rainforest Jumps (APIO21_jumps)	C++17	100 / 100	1767 ms	56008 KiB

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#include <bits/stdc++.h>
using namespace std;
const int N = 200200;
const int LG = 18;
int n, l[N][LG], r[N][LG], high[N][LG];
vector<int> h;
int isValid(int x)
{
  return x >= 0 && x < n;
}
void initEdges()
{
  vector<pair<int, int>> sortedH;
  for (int i = 0; i < n; i++)
    sortedH.push_back({h[i], i});
  sort(sortedH.begin(), sortedH.end(), greater<pair<int, int>>());
  set<int> s;
  s.insert(-1);
  s.insert(n);
  memset(l, -1, sizeof l);
  memset(r, -1, sizeof r);
  memset(high, -1, sizeof high);
  for (auto [_, i] : sortedH)
  {
    auto it = s.lower_bound(i);
    r[i][0] = *it;
    l[i][0] = *(--it);
 
 
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• Subtask 7: 19 / 19