結果
問題 | No.312 置換処理 |
ユーザー |
|
提出日時 | 2019-09-14 04:20:11 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 80 ms / 2,000 ms |
コード長 | 2,911 bytes |
コンパイル時間 | 2,409 ms |
コンパイル使用メモリ | 78,672 KB |
実行使用メモリ | 38,100 KB |
最終ジャッジ日時 | 2024-11-15 12:30:00 |
合計ジャッジ時間 | 6,657 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
other | AC * 45 |
ソースコード
import java.util.*;import java.io.*;public class Main {public static void main(String[] args) {FastScanner sc = new FastScanner();long n = sc.nextLong();List<Long> ans = new ArrayList<>();for (long i = 2; i * i <= n; i++) {if (n % i == 0) {if (i != 2) {ans.add(i);}if (n / i != 2) {ans.add(n / i);}}}if (ans.size() == 0) {System.out.println(n);return;}Collections.sort(ans);System.out.println(ans.get(0));}}class FastScanner {private final InputStream in = System.in;private final byte[] buffer = new byte[1024];private int ptr = 0;private int buflen = 0;private boolean hasNextByte() {if (ptr < buflen) {return true;} else {ptr = 0;try {buflen = in.read(buffer);} catch (IOException e) {e.printStackTrace();}if (buflen <= 0) {return false;}}return true;}private int readByte() {if (hasNextByte())return buffer[ptr++];elsereturn -1;}private static boolean isPrintableChar(int c) {return 33 <= c && c <= 126;}public boolean hasNext() {while (hasNextByte() && !isPrintableChar(buffer[ptr]))ptr++;return hasNextByte();}public String next() {if (!hasNext())throw new NoSuchElementException();StringBuilder sb = new StringBuilder();int b = readByte();while (isPrintableChar(b)) {sb.appendCodePoint(b);b = readByte();}return sb.toString();}public long nextLong() {if (!hasNext())throw new NoSuchElementException();long n = 0;boolean minus = false;int b = readByte();if (b == '-') {minus = true;b = readByte();}if (b < '0' || '9' < b) {throw new NumberFormatException();}while (true) {if ('0' <= b && b <= '9') {n *= 10;n += b - '0';} else if (b == -1 || !isPrintableChar(b)) {return minus ? -n : n;} else {throw new NumberFormatException();}b = readByte();}}public int nextInt() {long nl = nextLong();if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE)throw new NumberFormatException();return (int) nl;}public double nextDouble() {return Double.parseDouble(next());}}