結果
問題 | No.330 Eigenvalue Decomposition |
ユーザー | Grenache |
提出日時 | 2015-12-25 19:54:17 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 578 ms / 5,000 ms |
コード長 | 2,664 bytes |
コンパイル時間 | 3,827 ms |
コンパイル使用メモリ | 78,536 KB |
実行使用メモリ | 60,960 KB |
最終ジャッジ日時 | 2024-09-18 23:59:31 |
合計ジャッジ時間 | 12,096 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 342 ms
58,116 KB |
testcase_01 | AC | 56 ms
50,356 KB |
testcase_02 | AC | 118 ms
52,716 KB |
testcase_03 | AC | 359 ms
60,020 KB |
testcase_04 | AC | 57 ms
50,376 KB |
testcase_05 | AC | 97 ms
52,380 KB |
testcase_06 | AC | 371 ms
57,920 KB |
testcase_07 | AC | 58 ms
50,380 KB |
testcase_08 | AC | 282 ms
57,292 KB |
testcase_09 | AC | 578 ms
60,960 KB |
testcase_10 | AC | 57 ms
50,392 KB |
testcase_11 | AC | 272 ms
57,128 KB |
testcase_12 | AC | 505 ms
58,296 KB |
testcase_13 | AC | 57 ms
50,476 KB |
testcase_14 | AC | 255 ms
56,924 KB |
testcase_15 | AC | 152 ms
54,876 KB |
testcase_16 | AC | 57 ms
50,064 KB |
testcase_17 | AC | 135 ms
53,016 KB |
testcase_18 | AC | 221 ms
55,760 KB |
testcase_19 | AC | 56 ms
50,416 KB |
testcase_20 | AC | 151 ms
54,836 KB |
testcase_21 | AC | 520 ms
58,588 KB |
testcase_22 | AC | 136 ms
52,984 KB |
testcase_23 | AC | 158 ms
55,676 KB |
testcase_24 | AC | 564 ms
60,800 KB |
testcase_25 | AC | 57 ms
50,088 KB |
testcase_26 | AC | 144 ms
54,912 KB |
testcase_27 | AC | 64 ms
50,248 KB |
testcase_28 | AC | 56 ms
50,380 KB |
testcase_29 | AC | 59 ms
50,316 KB |
testcase_30 | AC | 57 ms
50,456 KB |
testcase_31 | AC | 57 ms
50,076 KB |
testcase_32 | AC | 57 ms
50,084 KB |
testcase_33 | AC | 59 ms
50,184 KB |
testcase_34 | AC | 57 ms
50,276 KB |
testcase_35 | AC | 56 ms
50,396 KB |
ソースコード
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.Iterator; public class Main_yukicoder330 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); Printer pr = new Printer(System.out); int n = sc.nextInt(); int m = sc.nextInt(); UnionFind uf = new UnionFind(n); for (int i = 0; i < m; i++) { int a = sc.nextInt() - 1; int b = sc.nextInt() - 1; @SuppressWarnings("unused") int c = sc.nextInt(); uf.union(a, b); } pr.println(uf.count()); pr.close(); sc.close(); } @SuppressWarnings("unused") private static class UnionFind { int[] parent; int[] rank; UnionFind(int n) { parent = new int[n]; rank = new int[n]; for (int i = 0; i < n; i++) { parent[i] = i; rank[i] = 0; } } int find(int x) { if (parent[x] == x) { return x; } else { return parent[x] = find(parent[x]); } } boolean same(int x, int y) { return find(x) == find(y); } void union(int x, int y) { x = find(x); y = find(y); if (x != y) { if (rank[x] > rank[y]) { parent[y] = x; } else { parent[x] = y; if (rank[x] == rank[y]) { rank[y]++; } } } return; } // 異なる集合の数 int count() { int ret = 0; for (int i = 0; i < parent.length; i++) { if (find(i) == i) { ret++; } } return ret; } } @SuppressWarnings("unused") private static class Scanner { BufferedReader br; Iterator<String> it; Scanner (InputStream in) { br = new BufferedReader(new InputStreamReader(in)); } String next() throws RuntimeException { try { if (it == null || !it.hasNext()) { it = Arrays.asList(br.readLine().split(" ")).iterator(); } return it.next(); } catch (IOException e) { throw new IllegalStateException(); } } int nextInt() throws RuntimeException { return Integer.parseInt(next()); } long nextLong() throws RuntimeException { return Long.parseLong(next()); } float nextFloat() throws RuntimeException { return Float.parseFloat(next()); } double nextDouble() throws RuntimeException { return Double.parseDouble(next()); } void close() { try { br.close(); } catch (IOException e) { // throw new IllegalStateException(); } } } private static class Printer extends PrintWriter { Printer(PrintStream out) { super(out); } } }