Submission #252071

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
252071	2020-07-24 05:54:38	Mlxa	Circle selection (APIO18_circle_selection)	C++14	7 / 100	3080 ms	21216 KiB

circle_selection

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#include <bits/stdc++.h>
using ll = long long;
#define int ll
#define x first
#define y second
#define all(x) x.begin(), x.end()
#define mp make_pair
#define mt make_tuple
using namespace std;
const int N = 3e5 + 5;
int n;
int x[N];
int y[N];
int r[N];
int a[N];
int step = 30;
vector<int> desc;
int sq(int t) {
    return t * t;
}
bool cross(int i, int j) {
    return sq(x[i] - x[j]) + sq(y[i] - y[j]) <= sq(r[i] + r[j]);
}
int id(int xi, int yi) {
    return ((xi >> step) << 30) ^ (yi >> step);
}
map<int, vector<int>> table;
 
 
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