結果
問題 | No.1917 LCMST |
ユーザー | tenten |
提出日時 | 2023-04-13 13:25:56 |
言語 | Java21 (openjdk 21) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,429 bytes |
コンパイル時間 | 3,247 ms |
コンパイル使用メモリ | 97,776 KB |
実行使用メモリ | 399,956 KB |
最終ジャッジ日時 | 2024-10-09 11:29:49 |
合計ジャッジ時間 | 14,081 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 55 ms
42,860 KB |
testcase_01 | AC | 55 ms
37,184 KB |
testcase_02 | AC | 56 ms
37,388 KB |
testcase_03 | AC | 139 ms
42,300 KB |
testcase_04 | AC | 144 ms
42,284 KB |
testcase_05 | AC | 143 ms
42,208 KB |
testcase_06 | AC | 139 ms
42,488 KB |
testcase_07 | AC | 145 ms
42,652 KB |
testcase_08 | AC | 54 ms
37,480 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<Integer>> components = new HashMap<>(); for (int i = 0; i < n; i++) { for (int j = 1; j <= Math.sqrt(values[i]); j++) { if (values[i] % j == 0) { if (!components.containsKey(j)) { components.put(j, new ArrayList<>()); } components.get(j).add(i); if (j * j < values[i]) { if (!components.containsKey(values[i] / j)) { components.put(values[i] / j, new ArrayList<>()); } components.get(values[i] / j).add(i); } } } } ArrayList<Bridge> bridges = new ArrayList<>(); for (int x : components.keySet()) { ArrayList<Integer> list = components.get(x); long base = values[list.get(0)] / x; for (int i = 1; i < list.size(); i++) { bridges.add(new Bridge(list.get(0), list.get(i), base * values[list.get(i)])); } } 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 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 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(x)] = find(y); } public void unite(Bridge x) { unite(x.left, x.right); } } } 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(); } }