Submission #1075389

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1075389	2024-08-26 05:12:52	HappyCapybara	Circle selection (APIO18_circle_selection)	C++17	19 / 100	550 ms	62640 KiB

circle_selection

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#include<bits/stdc++.h>
using namespace std;
double eps = pow(10, -9);
double dist(int ax, int ay, int bx, int by){
    return sqrt(pow(ax-bx, 2)+pow(ay-by, 2));
}
int main(){
    int n;
    cin >> n;
    vector<vector<int>> v(n);
    vector<pair<int,int>> ep;
    for (int i=0; i<n; i++){
        int x, y, r;
        cin >> x >> y >> r;
        v[i] = {-r, i, x, y};
    }
    sort(v.begin(), v.end());
    for (int i=0; i<n; i++){
        ep.push_back({v[i][2]+v[i][0], i});
        ep.push_back({v[i][2]-v[i][0], i});
    }
    sort(ep.begin(), ep.end());
    vector<vector<int>> fts(n);
    for (int i=0; i<2*n; i++){
        //cout << ep[i].first << " " << ep[i].second << "\n";
        fts[ep[i].second].push_back(i);
 
 
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• Subtask 1: 7 / 7
• Subtask 2: 12 / 12
• Subtask 3: 0 / 15
• Subtask 4: 0 / 23
• Subtask 5: 0 / 30
• Subtask 6: 0 / 13