Submission #451963

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
451963	2021-08-03 14:22:18	vector	Fountain Parks (IOI21_parks)	C++17	100 / 100	845 ms	49188 KiB

parks

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#include "parks.h"
#include <bits/stdc++.h>
#define SIZE 200001
using namespace std;
struct point
{
    int x, y, idx;
};
set<pair<int, int> > vis;
map<pair<int, int>, int> fnt;
point p[SIZE];
int root[SIZE], cnt;
int dx[5][3]=
{
    { 1, 1 },
    { 1, -1 },
    { -1, 1 },
    { -1, -1 }
};
int Find(int x)
{
    if (x==root[x]) return x;
    return root[x]=Find(root[x]);
}
void Union(int x, int y)
{
    if (Find(x)==Find(y)) return;
    root[root[y]]=root[x], cnt++;
}
bool comp1(point a, point b)
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20
• Subtask 6: 30 / 30