結果
問題 | No.192 合成数 |
ユーザー |
![]() |
提出日時 | 2015-04-26 22:07:50 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 57 ms / 2,000 ms |
コード長 | 2,513 bytes |
コンパイル時間 | 2,242 ms |
コンパイル使用メモリ | 79,200 KB |
実行使用メモリ | 52,208 KB |
最終ジャッジ日時 | 2024-06-27 01:27:50 |
合計ジャッジ時間 | 4,821 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 25 |
ソースコード
import java.io.IOException;import java.util.Arrays;import java.util.InputMismatchException;public class Main {void run() {MyScanner sc = new MyScanner();boolean[] prime = new boolean[2000];Arrays.fill(prime, true);prime[0] = prime[1] = false;for (int i = 0; i * i <= 2000; i++) {if (prime[i]) {for (int j = i * i; j < 2000; j += i) {prime[j] = false;}}}int n = sc.nextInt();for (int i = Math.max(3, n - 100); i <= n + 100; i++) {if (!prime[i]) {System.out.println(i);return;}}}public static void main(String[] args) {new Main().run();}public void mapDebug(int[][] a) {System.out.println("--------map display---------");for (int i = 0; i < a.length; i++) {for (int j = 0; j < a[i].length; j++) {System.out.printf("%3d ", a[i][j]);}System.out.println();}System.out.println("----------------------------" + '\n');}class MyScanner {int read() {try {return System.in.read();} catch (IOException e) {throw new InputMismatchException();}}boolean isSpaceChar(int c) {return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;}boolean isEndline(int c) {return c == '\n' || c == '\r' || c == -1;}int nextInt() {return Integer.parseInt(next());}int[] nextIntArray(int n) {int[] array = new int[n];for (int i = 0; i < n; i++)array[i] = nextInt();return array;}long nextLong() {return Long.parseLong(next());}long[] nextLongArray(int n) {long[] array = new long[n];for (int i = 0; i < n; i++)array[i] = nextLong();return array;}double nextDouble() {return Double.parseDouble(next());}double[] nextDoubleArray(int n) {double[] array = new double[n];for (int i = 0; i < n; i++)array[i] = nextDouble();return array;}String next() {int c = read();while (isSpaceChar(c))c = read();StringBuilder res = new StringBuilder();do {res.appendCodePoint(c);c = read();} while (!isSpaceChar(c));return res.toString();}String[] nextStringArray(int n) {String[] array = new String[n];for (int i = 0; i < n; i++)array[i] = next();return array;}String nextLine() {int c = read();while (isEndline(c))c = read();StringBuilder res = new StringBuilder();do {res.appendCodePoint(c);c = read();} while (!isEndline(c));return res.toString();}}}