Submission #1065052

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1065052	2024-08-18 21:48:02	belgianbot	Regions (IOI09_regions)	C++17	1 / 100	2925 ms	45828 KiB

regions

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#include <bits/stdc++.h>
#define ll long long
using namespace std;
int cnt = 0, N, SQRT, R;
vector<int> a, in, out, occ;
vector<vector<int>> child;
map<int, vector<ll>> col;
map<int,int> curr;
vector<vector<pair<int,int>>> pref;
void dfs(int x) {
  int last = 0;
  if (!pref[a[x]].empty()) last = pref[a[x]].back().second;
  pref[a[x]].push_back({cnt, last + 1});
  in[x] = cnt++;
  
  if (occ[a[x]] > SQRT) curr[a[x]]++;
  for (int y : child[x]) {
    dfs(y);
  }
  if (occ[a[x]] > SQRT) curr[a[x]] --;
  for (auto z : curr) col[z.first][a[x]] += z.second;
  out[x] = cnt;
  
}
signed main() {
 
 
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• Subtask 1: 1 / 15
• Subtask 2: 0 / 85