結果
問題 | No.1557 Binary Variable |
ユーザー | tenten |
提出日時 | 2023-02-21 08:34:08 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 764 ms / 2,000 ms |
コード長 | 2,172 bytes |
コンパイル時間 | 3,589 ms |
コンパイル使用メモリ | 82,040 KB |
実行使用メモリ | 50,812 KB |
最終ジャッジ日時 | 2023-09-29 03:15:51 |
合計ジャッジ時間 | 30,231 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge11 |
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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 | 361 ms
48,436 KB |
testcase_01 | AC | 375 ms
49,328 KB |
testcase_02 | AC | 42 ms
33,656 KB |
testcase_03 | AC | 41 ms
33,624 KB |
testcase_04 | AC | 487 ms
49,408 KB |
testcase_05 | AC | 483 ms
49,428 KB |
testcase_06 | AC | 446 ms
49,220 KB |
testcase_07 | AC | 474 ms
50,292 KB |
testcase_08 | AC | 516 ms
49,452 KB |
testcase_09 | AC | 538 ms
49,296 KB |
testcase_10 | AC | 704 ms
50,272 KB |
testcase_11 | AC | 692 ms
50,216 KB |
testcase_12 | AC | 593 ms
49,128 KB |
testcase_13 | AC | 652 ms
49,928 KB |
testcase_14 | AC | 732 ms
49,808 KB |
testcase_15 | AC | 753 ms
50,120 KB |
testcase_16 | AC | 724 ms
50,344 KB |
testcase_17 | AC | 697 ms
50,264 KB |
testcase_18 | AC | 721 ms
50,212 KB |
testcase_19 | AC | 712 ms
50,396 KB |
testcase_20 | AC | 740 ms
50,144 KB |
testcase_21 | AC | 756 ms
49,976 KB |
testcase_22 | AC | 712 ms
49,920 KB |
testcase_23 | AC | 705 ms
49,480 KB |
testcase_24 | AC | 757 ms
50,364 KB |
testcase_25 | AC | 719 ms
50,812 KB |
testcase_26 | AC | 764 ms
50,724 KB |
testcase_27 | AC | 747 ms
50,428 KB |
testcase_28 | AC | 680 ms
50,740 KB |
testcase_29 | AC | 712 ms
49,888 KB |
testcase_30 | AC | 683 ms
49,612 KB |
testcase_31 | AC | 687 ms
49,628 KB |
testcase_32 | AC | 705 ms
49,672 KB |
testcase_33 | AC | 674 ms
50,228 KB |
testcase_34 | AC | 43 ms
33,680 KB |
testcase_35 | AC | 42 ms
33,984 KB |
testcase_36 | AC | 42 ms
33,640 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 m = sc.nextInt(); Unit[] units = new Unit[m]; for (int i = 0; i < m; i++) { units[i] = new Unit(sc.nextInt(), sc.nextInt()); } Arrays.sort(units); int prev = -1; for (Unit x : units) { if (prev < x.left) { n--; prev = x.right; } } System.out.println(n); } static class Unit implements Comparable<Unit> { int left; int right; public Unit(int left, int right) { this.left = left; this.right = right; } public int compareTo(Unit another) { return right - another.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(); } }