結果
問題 | No.1140 EXPotentiaLLL! |
ユーザー | shojin_pro |
提出日時 | 2020-07-31 21:49:58 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,825 bytes |
コンパイル時間 | 2,674 ms |
コンパイル使用メモリ | 79,888 KB |
実行使用メモリ | 75,596 KB |
最終ジャッジ日時 | 2024-07-06 17:39:11 |
合計ジャッジ時間 | 10,236 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 628 ms
75,428 KB |
testcase_01 | AC | 655 ms
75,456 KB |
testcase_02 | WA | - |
testcase_03 | AC | 615 ms
75,380 KB |
testcase_04 | AC | 597 ms
75,220 KB |
testcase_05 | AC | 671 ms
75,596 KB |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | AC | 137 ms
68,044 KB |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | AC | 137 ms
68,112 KB |
ソースコード
import java.util.*; import java.io.*; public class Main { public static void main(String[] args) throws Exception { FastScanner sc = new FastScanner(System.in); PrintWriter pw = new PrintWriter(System.out); Sieve s = new Sieve((int)5e6); int t = sc.nextInt(); for(int i = 0; i < t; i++){ long a = sc.nextLong(); int p = sc.nextInt(); pw.println(s.isPrime(p) ? 1 : -1); } pw.flush(); } private static long rep2(long b, long n, long mod){ if(n == 0) return 1; long bn = rep2(b,n/2,mod); if(n % 2 == 0){ return (bn*bn)%mod; }else{ return (bn*bn)%mod*b%mod; } } } class Sieve{ static int n; static int[] f; static ArrayList<Integer> prime; public Sieve(int n){ long ln = n; prime = new ArrayList<Integer>(); f = new int[n+1]; f[0] = f[1] = -1; for(int i = 2; i <= n; i++){ if(f[i] != 0){ continue; } f[i] = i; prime.add(i); long li = (long)i; for(long j = li*li; j <= ln; j += li){ if(f[(int)j] == 0){ f[(int)j] = i; } } } } public static boolean isPrime(int x){ return f[x] == x; } public static ArrayList<Integer> factorList(int x){ ArrayList<Integer> res = new ArrayList<Integer>(); while(x != 1){ res.add(f[x]); x /= f[x]; } return res; } public static HashMap<Integer,Integer> factor(int x){ ArrayList<Integer> fl = factorList(x); HashMap<Integer,Integer> res = new HashMap<Integer,Integer>(); if(fl.size()==0){ return new HashMap<Integer,Integer>(); } int prev = fl.get(0); int cnt = 0; for(int p : fl){ if(prev == p){ cnt++; }else{ res.put(prev,cnt); prev = p; cnt = 1; } } res.put(prev,cnt); return res; } } class FastScanner { private BufferedReader reader = null; private StringTokenizer tokenizer = null; public FastScanner(InputStream in) { reader = new BufferedReader(new InputStreamReader(in)); tokenizer = null; } public String next() { if (tokenizer == null || !tokenizer.hasMoreTokens()) { try { tokenizer = new StringTokenizer(reader.readLine()); } catch (IOException e) { throw new RuntimeException(e); } } return tokenizer.nextToken(); } public String nextLine() { if (tokenizer == null || !tokenizer.hasMoreTokens()) { try { return reader.readLine(); } catch (IOException e) { throw new RuntimeException(e); } } return tokenizer.nextToken("\n"); } public long nextLong() { return Long.parseLong(next()); } public int nextInt() { return Integer.parseInt(next()); } public double nextDouble() { return Double.parseDouble(next()); } public String[] nextArray(int n) { String[] a = new String[n]; for (int i = 0; i < n; i++) a[i] = next(); return a; } 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; } }