제출 #306366

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
306366	2020-09-25 09:59:59	llaki	기지국 (IOI20_stations)	Java	57.32 / 100	1809 ms	41776 KiB

stations

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import java.util.ArrayList;
public class stations {
    void dfsLabel(int v, int p, ArrayList<Integer>[] G, int[] labels) {
        int min = label;
        for (int to : G[v]) {
            if (p != to) {
                dfsLabel(to, v, G, labels);
            }
        }
        int max = label;
        labels[v] = 1000 * min + max;
        label++;
    }
    int label = 0;
    int[] label(int n, int k, int[] u, int[] v) {
        ArrayList<Integer>[] G = new ArrayList[n];
        for (int i = 0; i < G.length; i++) {
            G[i] = new ArrayList<>();
        }
        for (int i = 0; i < u.length; i++) {
            G[u[i]].add(v[i]);
            G[v[i]].add(u[i]);
        }
        int[] labels = new int[n];
        if (k > 1000) {
            label = 0;
            dfsLabel(0, 0, G, labels);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

Note: stations.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

• Subtask 1: 5 / 5
• Subtask 2: 0 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 26.3244 / 61