Submission #814116

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
814116	2023-08-08 05:39:11	LittleCube	Fountain Parks (IOI21_parks)	C++17	70 / 100	822 ms	72028 KiB

parks

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#pragma GCC optimize("Ofast,unroll-loops")
#include "parks.h"
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define F first
#define S second
using namespace std;
map<pii, int> id;
int n, m, deg[200000], dsu[200000], vis[400001], use[400001], hmm;
pii pos[400001];
vector<pair<pii, pii>> edge;
vector<pii> E[400001];
vector<int> ru, rv, bx, by;
int find(int k)
{
    return dsu[k] == k ? k : dsu[k] = find(dsu[k]);
}
void merge(int x, int y)
{
    x = find(x), y = find(y);
    dsu[x] = y;
}
int node(int x, int y)
{
 
 
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Compilation message (stderr)

parks.cpp: In function 'int construct_roads(std::vector<int>, std::vector<int>)':
parks.cpp:106:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  106 |     if (ru.size() < n - 1)
      |         ~~~~~~~~~~^~~~~~~

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