#61889 (Java21) No.308 素数は通れません

• 問題: No.308 素数は通れません
• ユーザー: holeguma
• 提出日時: 2015-12-01 22:08:02
• 言語: Java21 (openjdk 21)
• 結果: AC
• 実行時間: 62 ms / 1,000 ms
• コード長: 4,035 bytes
• コンパイル時間: 2,386 ms
• コンパイル使用メモリ: 79,768 KB
• 実行使用メモリ: 52,212 KB
• 最終ジャッジ日時: 2024-05-05 18:22:59
• 合計ジャッジ時間: 10,564 ms
• ジャッジサーバーID （参考情報）: judge3 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	54 ms; 50,092 KB
testcase_01	AC	54 ms; 50,076 KB
testcase_02	AC	56 ms; 50,172 KB
testcase_03	AC	54 ms; 50,080 KB
testcase_04	AC	53 ms; 49,900 KB
testcase_05	AC	55 ms; 50,184 KB
testcase_06	AC	54 ms; 49,888 KB
testcase_07	AC	54 ms; 50,176 KB
testcase_08	AC	54 ms; 50,116 KB
testcase_09	AC	55 ms; 50,296 KB
testcase_10	AC	56 ms; 49,908 KB
testcase_11	AC	54 ms; 50,112 KB
testcase_12	AC	55 ms; 50,000 KB
testcase_13	AC	54 ms; 49,816 KB
testcase_14	AC	54 ms; 50,056 KB
testcase_15	AC	54 ms; 50,308 KB
testcase_16	AC	55 ms; 50,244 KB
testcase_17	AC	54 ms; 50,452 KB
testcase_18	AC	54 ms; 49,992 KB
testcase_19	AC	54 ms; 50,368 KB
testcase_20	AC	54 ms; 50,356 KB
testcase_21	AC	55 ms; 50,396 KB
testcase_22	AC	55 ms; 50,184 KB
testcase_23	AC	55 ms; 50,460 KB
testcase_24	AC	54 ms; 50,356 KB
testcase_25	AC	55 ms; 50,400 KB
testcase_26	AC	55 ms; 50,092 KB
testcase_27	AC	55 ms; 50,384 KB
testcase_28	AC	55 ms; 50,624 KB
testcase_29	AC	54 ms; 50,160 KB
testcase_30	AC	55 ms; 49,940 KB
testcase_31	AC	55 ms; 50,380 KB
testcase_32	AC	55 ms; 50,032 KB
testcase_33	AC	55 ms; 50,372 KB
testcase_34	AC	55 ms; 50,068 KB
testcase_35	AC	55 ms; 50,236 KB
testcase_36	AC	55 ms; 50,368 KB
testcase_37	AC	55 ms; 49,928 KB
testcase_38	AC	55 ms; 50,288 KB
testcase_39	AC	54 ms; 50,312 KB
testcase_40	AC	55 ms; 50,352 KB
testcase_41	AC	54 ms; 50,336 KB
testcase_42	AC	57 ms; 50,504 KB
testcase_43	AC	56 ms; 50,068 KB
testcase_44	AC	55 ms; 50,276 KB
testcase_45	AC	55 ms; 50,352 KB
testcase_46	AC	55 ms; 49,944 KB
testcase_47	AC	55 ms; 50,340 KB
testcase_48	AC	55 ms; 50,196 KB
testcase_49	AC	55 ms; 50,184 KB
testcase_50	AC	54 ms; 50,372 KB
testcase_51	AC	54 ms; 50,060 KB
testcase_52	AC	54 ms; 50,280 KB
testcase_53	AC	54 ms; 50,392 KB
testcase_54	AC	53 ms; 50,204 KB
testcase_55	AC	54 ms; 50,332 KB
testcase_56	AC	55 ms; 50,504 KB
testcase_57	AC	53 ms; 50,120 KB
testcase_58	AC	55 ms; 50,704 KB
testcase_59	AC	55 ms; 50,420 KB
testcase_60	AC	55 ms; 50,384 KB
testcase_61	AC	55 ms; 50,012 KB
testcase_62	AC	55 ms; 50,412 KB
testcase_63	AC	56 ms; 50,440 KB
testcase_64	AC	56 ms; 50,028 KB
testcase_65	AC	55 ms; 50,368 KB
testcase_66	AC	56 ms; 50,248 KB
testcase_67	AC	55 ms; 50,396 KB
testcase_68	AC	56 ms; 49,940 KB
testcase_69	AC	56 ms; 50,344 KB
testcase_70	AC	56 ms; 50,312 KB
testcase_71	AC	56 ms; 50,180 KB
testcase_72	AC	56 ms; 49,924 KB
testcase_73	AC	57 ms; 49,944 KB
testcase_74	AC	55 ms; 50,476 KB
testcase_75	AC	56 ms; 50,392 KB
testcase_76	AC	58 ms; 50,276 KB
testcase_77	AC	58 ms; 52,212 KB
testcase_78	AC	55 ms; 50,616 KB
testcase_79	AC	55 ms; 50,356 KB
testcase_80	AC	59 ms; 50,436 KB
testcase_81	AC	58 ms; 50,396 KB
testcase_82	AC	55 ms; 50,208 KB
testcase_83	AC	55 ms; 50,180 KB
testcase_84	AC	58 ms; 50,028 KB
testcase_85	AC	55 ms; 50,280 KB
testcase_86	AC	59 ms; 50,060 KB
testcase_87	AC	59 ms; 50,156 KB
testcase_88	AC	57 ms; 49,956 KB
testcase_89	AC	56 ms; 50,316 KB
testcase_90	AC	60 ms; 50,408 KB
testcase_91	AC	56 ms; 50,300 KB
testcase_92	AC	56 ms; 50,292 KB
testcase_93	AC	56 ms; 50,312 KB
testcase_94	AC	55 ms; 50,008 KB
testcase_95	AC	55 ms; 50,004 KB
testcase_96	AC	57 ms; 50,276 KB
testcase_97	AC	55 ms; 50,072 KB
testcase_98	AC	56 ms; 50,400 KB
testcase_99	AC	56 ms; 50,328 KB
testcase_100	AC	56 ms; 50,176 KB
testcase_101	AC	62 ms; 50,376 KB
testcase_102	AC	54 ms; 50,068 KB
testcase_103	AC	56 ms; 50,488 KB
testcase_104	AC	55 ms; 50,176 KB
testcase_105	AC	55 ms; 50,360 KB
testcase_106	AC	56 ms; 50,544 KB

ソースコード

import java.io.InputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.InputMismatchException;
import java.util.NoSuchElementException;
import java.math.BigInteger;

public class Main{

static PrintWriter out;
static InputReader ir;

static void solve(){
 BigInteger n=ir.nextBigInteger();
 if(n.compareTo(b(4))==0) out.println(3);
 else if(n.compareTo(b(6))==0) out.println(5);
 else if(n.compareTo(b(8))==0||n.compareTo(b(9))==0||n.compareTo(b(10))==0||n.compareTo(b(15))==0||n.compareTo(b(16))==0||n.compareTo(b(22))==0) out.println(7);
 else if(n.compareTo(b(12))==0) out.println(11);
 else if(n.compareTo(b(14))==0||n.compareTo(b(15))==0) out.println(13);
 else if(n.compareTo(b(20))==0||n.compareTo(b(21))==0) out.println(19);
 else if(n.compareTo(b(24))==0||n.compareTo(b(25))==0) out.println(23);
 else if(n.remainder(b(8)).compareTo(BigInteger.ONE)==0&&n.subtract(b(8)).isProbablePrime(20)) out.println(14);
 else out.println(8);
}

public static BigInteger b(long n){
 return BigInteger.valueOf(n);
}

public static boolean isPrime(long n,int k){
 if(n==2) return true;
 if(n<2||(n&1)==0) return false;
 long d=(n-1)>>1;
 while((d&1)==0) d>>=1;
 for(int i=0;i<k;i++){
  long a=(long)(Math.random()*(n-1))+1;
  long t=d;
  long y=BigInteger.valueOf(a).modPow(BigInteger.valueOf(t),BigInteger.valueOf(n)).longValue();
  while(t!=n-1&&y!=1&&y!=n-1){
   y=BigInteger.valueOf(y).modPow(BigInteger.valueOf(2),BigInteger.valueOf(n)).longValue();
   t<<=1;
  }
  if(y!=n-1&&(t&1)==0) return false;
 }
 return true;
}

public static void main(String[] args) throws Exception{
 ir=new InputReader(System.in);
 out=new PrintWriter(System.out);
 solve();
 out.flush();
}

static class InputReader {
 private InputStream in;
 private byte[] buffer=new byte[1024];
 private int curbuf;
 private int lenbuf;

 public InputReader(InputStream in) {this.in=in; this.curbuf=this.lenbuf=0;}
 
 public boolean hasNextByte() {
  if(curbuf>=lenbuf){
   curbuf= 0;
   try{
    lenbuf=in.read(buffer);
   }catch(IOException e) {
    throw new InputMismatchException();
   }
   if(lenbuf<=0) return false;
  }
  return true;
 }

 private int readByte(){if(hasNextByte()) return buffer[curbuf++]; else return -1;}
 
 private boolean isSpaceChar(int c){return !(c>=33&&c<=126);}
 
 private void skip(){while(hasNextByte()&&isSpaceChar(buffer[curbuf])) curbuf++;}
 
 public boolean hasNext(){skip(); return hasNextByte();}
 
 public String next(){
  if(!hasNext()) throw new NoSuchElementException();
  StringBuilder sb=new StringBuilder();
  int b=readByte();
  while(!isSpaceChar(b)){
   sb.appendCodePoint(b);
   b=readByte();
  }
  return sb.toString();
 }
 
 public int nextInt() {
  if(!hasNext()) throw new NoSuchElementException();
  int c=readByte();
  while (isSpaceChar(c)) c=readByte();
  boolean minus=false;
  if (c=='-') {
   minus=true;
   c=readByte();
  }
  int res=0;
  do{
   if(c<'0'||c>'9') throw new InputMismatchException();
   res=res*10+c-'0';
   c=readByte();
  }while(!isSpaceChar(c));
  return (minus)?-res:res;
 }
 
 public long nextLong() {
  if(!hasNext()) throw new NoSuchElementException();
  int c=readByte();
  while (isSpaceChar(c)) c=readByte();
  boolean minus=false;
  if (c=='-') {
   minus=true;
   c=readByte();
  }
  long res = 0;
  do{
   if(c<'0'||c>'9') throw new InputMismatchException();
   res=res*10+c-'0';
   c=readByte();
  }while(!isSpaceChar(c));
  return (minus)?-res:res;
 }

 public double nextDouble(){return Double.parseDouble(next());}

 public BigInteger nextBigInteger(){return new BigInteger(next());}

 public int[] nextIntArray(int n){
  int[] a=new int[n];
  for(int i=0;i<n;i++) a[i]=nextInt();
  return a;
 }

 public long[] nextLongArray(int n){
  long[] a=new long[n];
  for(int i=0;i<n;i++) a[i]=nextLong();
  return a;
 }

 public char[][] nextCharMap(int n,int m){
  char[][] map=new char[n][m];
  for(int i=0;i<n;i++) map[i]=next().toCharArray();
  return map;
 }
}
}