結果
問題 | No.694 square1001 and Permutation 3 |
ユーザー | tenten |
提出日時 | 2023-06-15 17:15:06 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 2,783 ms / 3,000 ms |
コード長 | 3,165 bytes |
コンパイル時間 | 2,662 ms |
コンパイル使用メモリ | 85,924 KB |
実行使用メモリ | 111,720 KB |
最終ジャッジ日時 | 2024-06-23 16:24:43 |
合計ジャッジ時間 | 17,340 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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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 | 47 ms
36,928 KB |
testcase_01 | AC | 50 ms
37,264 KB |
testcase_02 | AC | 49 ms
37,248 KB |
testcase_03 | AC | 53 ms
37,472 KB |
testcase_04 | AC | 59 ms
37,352 KB |
testcase_05 | AC | 63 ms
37,468 KB |
testcase_06 | AC | 72 ms
37,500 KB |
testcase_07 | AC | 518 ms
63,496 KB |
testcase_08 | AC | 1,514 ms
75,908 KB |
testcase_09 | AC | 2,722 ms
111,720 KB |
testcase_10 | AC | 560 ms
64,172 KB |
testcase_11 | AC | 2,783 ms
111,168 KB |
testcase_12 | AC | 2,768 ms
111,116 KB |
testcase_13 | AC | 49 ms
36,720 KB |
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]; TreeMap<Integer, Integer> compress = new TreeMap<>(); for (int i = 0; i < n; i++) { values[i] = sc.nextInt(); compress.put(values[i], null); } int idx = compress.size(); for (int x : compress.keySet()) { compress.put(x, idx--); } BinaryIndexedTree bit = new BinaryIndexedTree(compress.size() + 1); long count = 0; for (int x : values) { int y = compress.get(x); count += bit.getSum(y - 1); bit.add(y, 1); } StringBuilder sb = new StringBuilder(); sb.append(count).append("\n"); for (int i = 0; i < n - 1; i++) { count -= n - bit.getSum(compress.get(values[i])); count += bit.getSum(compress.get(values[i]) - 1); sb.append(count).append("\n"); } System.out.print(sb); } } class BinaryIndexedTree { int size; int[] tree; public BinaryIndexedTree(int size) { this.size = size; tree = new int[size]; } public void add(int idx, int value) { int mask = 1; while (idx < size) { if ((idx & mask) != 0) { tree[idx] += value; idx += mask; } mask <<= 1; } } public int getSum(int from, int to) { return getSum(to) - getSum(from - 1); } public int getSum(int x) { int mask = 1; int ans = 0; while (x > 0) { if ((x & mask) != 0) { ans += tree[x]; x -= mask; } mask <<= 1; } return ans; } } 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(); } }