oj.uz

Submission #305998

# Submission time Handle Problem Language Result Execution time Memory
305998 2020-09-24T09:13:10 Z llaki Stations (IOI20_stations) Java 11
5 / 100
 1689 ms 39740 KB 
import java.util.ArrayList;

public class stations {

    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 leaf = -1;
        for (int i = 0; i < n; i++) {
            if (G[i].size() == 1) {
                leaf = i;
                break;
            }
        }
        int[] labels = new int[n];
        int cur = 0;
        int node = leaf;
        int prev = -1;
        while (true) {
            labels[node] = cur;
            cur++;
            boolean found = false;
            for (int to : G[node]) {
                if (to == prev) continue;
                prev = node;
                node = to;
                found = true;
                break;
            }
            if (!found) break;
        }
        return labels;
    }

    int find_next_station(int s, int t, int[] c) {
        for (int nd : c) {
            if (s <= nd && nd <= t) return nd;
            if (s >= nd && nd >= t) return nd;
        }
        return -1;
    }
}

Compilation message

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

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1079 ms 36052 KB Output is correct
2 Correct 1227 ms 37752 KB Output is correct
3 Correct 1450 ms 35832 KB Output is correct
4 Correct 1185 ms 34740 KB Output is correct
5 Correct 1150 ms 32792 KB Output is correct
6 Correct 1098 ms 38372 KB Output is correct
7 Correct 1182 ms 32980 KB Output is correct
8 Correct 175 ms 21256 KB Output is correct
9 Correct 184 ms 20968 KB Output is correct
10 Correct 164 ms 20968 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 149 ms 14200 KB Invalid labels (duplicates values). scenario=0, label=0
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1219 ms 36084 KB Output is correct
2 Correct 1061 ms 39740 KB Output is correct
3 Correct 1582 ms 37904 KB Output is correct
4 Correct 1324 ms 34600 KB Output is correct
5 Correct 1160 ms 33240 KB Output is correct
6 Correct 1117 ms 38840 KB Output is correct
7 Correct 989 ms 33240 KB Output is correct
8 Correct 193 ms 21044 KB Output is correct
9 Correct 193 ms 21124 KB Output is correct
10 Correct 164 ms 20920 KB Output is correct
11 Incorrect 80 ms 10216 KB Invalid labels (duplicates values). scenario=1, label=0
12 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1473 ms 36232 KB Output is correct
2 Correct 1307 ms 36268 KB Output is correct
3 Correct 1367 ms 35516 KB Output is correct
4 Correct 164 ms 20812 KB Output is correct
5 Correct 181 ms 20952 KB Output is correct
6 Correct 166 ms 21080 KB Output is correct
7 Incorrect 99 ms 10044 KB Invalid labels (duplicates values). scenario=0, label=0
8 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 1232 ms 36404 KB Output is correct
2 Correct 1107 ms 38092 KB Output is correct
3 Correct 1689 ms 36816 KB Output is correct
4 Correct 1347 ms 34592 KB Output is correct
5 Correct 1115 ms 32480 KB Output is correct
6 Correct 1206 ms 37456 KB Output is correct
7 Correct 1092 ms 33508 KB Output is correct
8 Correct 174 ms 21284 KB Output is correct
9 Correct 182 ms 21176 KB Output is correct
10 Correct 160 ms 21068 KB Output is correct
11 Incorrect 163 ms 15040 KB Invalid labels (duplicates values). scenario=0, label=0
12 Halted 0 ms 0 KB -