結果
問題 | No.1917 LCMST |
ユーザー | tenten |
提出日時 | 2023-02-07 08:59:00 |
言語 | Java21 (openjdk 21) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,818 bytes |
コンパイル時間 | 2,248 ms |
コンパイル使用メモリ | 96,248 KB |
実行使用メモリ | 42,252 KB |
最終ジャッジ日時 | 2024-07-05 07:22:04 |
合計ジャッジ時間 | 11,858 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 | 43 ms
37,372 KB |
testcase_01 | AC | 43 ms
37,436 KB |
testcase_02 | AC | 45 ms
37,304 KB |
testcase_03 | AC | 124 ms
41,868 KB |
testcase_04 | AC | 112 ms
42,252 KB |
testcase_05 | AC | 114 ms
42,192 KB |
testcase_06 | AC | 124 ms
41,888 KB |
testcase_07 | AC | 122 ms
42,040 KB |
testcase_08 | AC | 45 ms
37,288 KB |
testcase_09 | TLE | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
testcase_41 | -- | - |
testcase_42 | -- | - |
testcase_43 | -- | - |
testcase_44 | -- | - |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int[] values = new int[n]; for (int i = 0; i < n; i++) { values[i] = sc.nextInt(); } Arrays.sort(values); HashMap<Integer, ArrayList<Unit>> result = new HashMap<>(); for (int i = 0; i < n; i++) { int x = values[i]; for (int j = 1; j <= Math.sqrt(x); j++) { if (x % j > 0) { continue; } if (!result.containsKey(j)) { result.put(j, new ArrayList<>()); } result.get(j).add(new Unit(i, x / j)); if (j * j == x) { continue; } if (!result.containsKey(x / j)) { result.put(x / j, new ArrayList<>()); } result.get(x / j).add(new Unit(i, j)); } } ArrayList<Bridge> bridges = new ArrayList<>(); for (int x : result.keySet()) { ArrayList<Unit> list = result.get(x); Unit base = list.get(0); list.remove(0); for (Unit y : list) { bridges.add(new Bridge(base.idx, y.idx, (long)base.value * y.value * x)); } } Collections.sort(bridges); UnionFindTree uft = new UnionFindTree(n); long ans = 0; for (Bridge x : bridges) { if (!uft.same(x)) { uft.unite(x); ans += x.value; } } System.out.println(ans); } static class UnionFindTree { int[] parents; public UnionFindTree(int size) { parents = new int[size]; for (int i = 0; i < size; i++) { parents[i] = i; } } public int find(int x) { if (x == parents[x]) { return x; } else { return parents[x] = find(parents[x]); } } public boolean same(int x, int y) { return find(x) == find(y); } public boolean same(Bridge x) { return same(x.left, x.right); } public void unite(int x, int y) { parents[find(y)] = find(x); } public void unite(Bridge x) { unite(x.left, x.right); } } static class Bridge implements Comparable<Bridge> { int left; int right; long value; public Bridge(int left, int right, long value) { this.left = left; this.right = right; this.value = value; } public int compareTo(Bridge another) { if (value == another.value) { return 0; } else if (value < another.value) { return -1; } else { return 1; } } } static class Unit implements Comparable<Unit> { int idx; int value; public Unit(int idx, int value) { this.idx = idx; this.value = value; } public int compareTo(Unit another) { return value - another.value; } public String toString() { return idx + ":" + value; } } } class Utilities { static String arrayToLineString(Object[] arr) { return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n")); } static String arrayToLineString(int[] arr) { return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new)); } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); StringBuilder sb = new StringBuilder(); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public int[] nextIntArray() throws Exception { return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }