Submission #446593

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
446593	2021-07-22 14:13:40	SuffixAutomata	Fountain Parks (IOI21_parks)	C++17	55 / 100	1254 ms	73648 KiB

parks

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#include "parks.h"
 
#include <bits/stdc++.h>
using namespace std;
 
int ufs[200005];
int ge(int x) {
  if (ufs[x] == -1)
    return x;
  return ufs[x] = ge(ufs[x]);
}
 
vector<pair<int, int>> pts;
map<pair<int, int>, int> idx;
vector<pair<int, int>> elist;
int n;
 
mt19937 rng(108616);
 
vector<int> bpt[200005];
int mach[800005];
int vis[200005];
int gloti = 0;
bool dfs(int u, int ti) {
  vis[u] = ti;
  for (int v : bpt[u]) {
    if (mach[v] == -1 || ((vis[mach[v]] != ti) && dfs(mach[v], ti))) {
      mach[v] = u;
      return 1;
    }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

parks.cpp: In function 'bool ranAttempt()':
parks.cpp:52:18: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   52 |   if (mst.size() != n - 1)
      |       ~~~~~~~~~~~^~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 15
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20
• Subtask 6: 0 / 30