結果
問題 | No.537 ユーザーID |
ユーザー |
![]() |
提出日時 | 2017-06-30 22:50:48 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 142 ms / 2,000 ms |
コード長 | 2,372 bytes |
コンパイル時間 | 1,987 ms |
コンパイル使用メモリ | 83,656 KB |
実行使用メモリ | 54,672 KB |
最終ジャッジ日時 | 2024-10-04 20:48:46 |
合計ジャッジ時間 | 5,276 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 32 |
ソースコード
import java.io.IOException;import java.io.InputStream;import java.util.HashSet;import java.util.NoSuchElementException;public class Main {private static FastScanner sc = new FastScanner();public static void main(String[] args) {long N = sc.nextLong();HashSet<Long> set = new HashSet<>();for(long i=1; i*i<=N; i++) {if(N % i == 0) {set.add(i);}}HashSet<Long> set2 = new HashSet<>();set2.addAll(set);for(long num : set) {if(!set2.contains(N/num)) {set2.add(N/num);}}HashSet<String> sset = new HashSet<>();for(long num : set2) {String s = String.valueOf(num) + String.valueOf(N/num);if(!sset.contains(s)) {sset.add(s);}}System.out.println(sset.size());}static 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++]; else return -1;}private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}public boolean hasNext() { skipUnprintable(); 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() {return Long.parseLong(next());}public int nextInt(){return Integer.parseInt(next());}public double nextDouble(){return Double.parseDouble(next());}}}