Submission #987298

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
987298	2024-05-22 14:11:06	cig32	Fountain Parks (IOI21_parks)	C++17	15 / 100	472 ms	68472 KiB

parks

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#include "parks.h"
#include "bits/stdc++.h"
using namespace std;
const int MAXN = 2e5 + 12;
int dsu[MAXN];
int set_of(int u) {
  if(dsu[u] == u) return u;
  return dsu[u] = set_of(dsu[u]);
}
void union_(int u, int v) {
  dsu[set_of(u)] = set_of(v);
}
int construct_roads(std::vector<int> x, std::vector<int> y) {
  if (x.size() == 1) {
    build({}, {}, {}, {});
    return 1;
  }
  int n = x.size();
  pair<pair<int, int>, int> p[n];
  vector<int> stox = x, stoy = y;
  for(int i=0; i<n; i++) {
    p[i].first.first = x[i];
    p[i].first.second = y[i];
    p[i].second = i;
  }
  sort(p, p + n);
  for(int i=0; i<n; i++) x[i] = stox[p[i].second], y[i] = stoy[p[i].second];
  std::vector<int> u, v, a, b;
  map<pair<int, int>, int> mp;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30