Submission #265496

#	Time	Username	Problem	Language	Result	Execution time	Memory
265496		DS007	Circle selection (APIO18_circle_selection)	C++14	7 / 100	163 ms	1280 KiB

circle_selection

#include <bits/stdc++.h>
using namespace std;
#define int long long

const int N = 5e3 + 10;
bool done[N];
int n, ans[N], x[N], y[N], r[N];

int solveTestCase() {
    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> x[i] >> y[i] >> r[i];

    for (int i = 0; i < n; i++) {
        pair<int, int> best = {1e18, 1e18};
        for (int j = 0; j < n; j++) {
            if (!done[j])
                best = min(best, {-r[j], j});
        }

        if (best.first == 1e18)
            break;
        for (int j = 0,ind = best.second; j < n; j++) {
            if (done[j])
                continue;
            int dist = (x[ind] - x[j]) * (x[ind] - x[j]) + (y[ind] - y[j]) * (y[ind] - y[j]);
            if (dist <= (r[ind] + r[j]) * (r[ind] + r[j]))
                ans[j] = ind + 1, done[j] = true;;
        }
    }

    for (int i = 0; i < n; i++)
        cout << ans[i] << " ";
  	return 0;
}


signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int t = 1;
    //cin >> t;
    while (t--)
        solveTestCase();
}

Compilation message (stderr)

circle_selection.cpp: In function 'long long int solveTestCase()':
circle_selection.cpp:32:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   32 |     for (int i = 0; i < n; i++)
      |     ^~~
circle_selection.cpp:34:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   34 |    return 0;
      |    ^~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 12
• Subtask 3: 0 / 15
• Subtask 4: 0 / 23
• Subtask 5: 0 / 30
• Subtask 6: 0 / 13