結果
問題 | No.219 巨大数の概算 |
ユーザー | uafr_cs |
提出日時 | 2015-08-31 03:13:50 |
言語 | Java21 (openjdk 21) |
結果 |
TLE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 4,073 bytes |
コンパイル時間 | 2,491 ms |
コンパイル使用メモリ | 82,980 KB |
実行使用メモリ | 63,016 KB |
最終ジャッジ日時 | 2024-07-18 11:39:49 |
合計ジャッジ時間 | 91,017 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | TLE | - |
testcase_01 | TLE | - |
testcase_02 | TLE | - |
testcase_03 | TLE | - |
testcase_04 | TLE | - |
testcase_05 | AC | 135 ms
40,828 KB |
testcase_06 | AC | 543 ms
50,404 KB |
testcase_07 | AC | 106 ms
40,076 KB |
testcase_08 | AC | 548 ms
50,648 KB |
testcase_09 | AC | 106 ms
40,224 KB |
testcase_10 | TLE | - |
testcase_11 | TLE | - |
testcase_12 | TLE | - |
testcase_13 | TLE | - |
testcase_14 | TLE | - |
testcase_15 | TLE | - |
testcase_16 | TLE | - |
testcase_17 | TLE | - |
testcase_18 | TLE | - |
testcase_19 | TLE | - |
testcase_20 | TLE | - |
testcase_21 | TLE | - |
testcase_22 | TLE | - |
testcase_23 | TLE | - |
testcase_24 | TLE | - |
testcase_25 | TLE | - |
testcase_26 | TLE | - |
testcase_27 | TLE | - |
testcase_28 | TLE | - |
testcase_29 | TLE | - |
testcase_30 | TLE | - |
testcase_31 | TLE | - |
testcase_32 | TLE | - |
testcase_33 | TLE | - |
testcase_34 | TLE | - |
testcase_35 | TLE | - |
testcase_36 | TLE | - |
testcase_37 | TLE | - |
testcase_38 | TLE | - |
testcase_39 | TLE | - |
testcase_40 | TLE | - |
testcase_41 | TLE | - |
testcase_42 | TLE | - |
testcase_43 | TLE | - |
testcase_44 | TLE | - |
testcase_45 | TLE | - |
testcase_46 | TLE | - |
testcase_47 | TLE | - |
testcase_48 | TLE | - |
testcase_49 | TLE | - |
testcase_50 | TLE | - |
testcase_51 | AC | 107 ms
40,012 KB |
ソースコード
import java.io.BufferedReader; import java.io.Closeable; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.math.BigDecimal; import java.math.BigInteger; import java.util.Arrays; import java.util.HashSet; import java.util.LinkedList; import java.util.NoSuchElementException; import java.util.Scanner; import java.util.Set; import java.util.StringTokenizer; public class Main { public static class Value { long val, zero; public Value(long val, long zero){ //System.out.println(val); this.val = val; this.zero = zero; } public Value(long val){ this(val, 0); } public Value(Value v){ this(v.val, v.zero); } public static BigInteger LONGMAX = BigInteger.valueOf(Long.MAX_VALUE); public static Value mul(Value a, Value b){ long zero = a.zero + b.zero; BigInteger value = BigInteger.valueOf(a.val).multiply(BigInteger.valueOf(b.val)); if(value.compareTo(LONGMAX) > 0){ // 18桁 zero += value.toString().length() - 18; value = new BigInteger(value.toString().substring(0, 18)); } return new Value(value.longValue(), zero); } public String toString(){ String str = Long.toString(this.val); //System.out.println(str); return str.charAt(0) + " " + (str.length() == 1 ? "0" : str.charAt(1)) + " " + (this.zero + Math.max(0, str.length() - 1)) ; } } public static Value pow(Value A, long B){ if(B == 1){ return new Value(A); } if(B % 2 != 0){ return Value.mul(A, pow(A, B - 1)); } //System.out.println("A = " + A); //System.out.println("B = " + B); final Value ret = pow(A, B / 2); //System.out.println("RET = " + ret); return Value.mul(ret, ret); } public static void main(String[] args) throws IOException{ FastScanner sc = new FastScanner(); final int N = (int)(sc.nextLong()); PrintWriter pw = new PrintWriter(System.out); for(int tt = 0; tt < N; tt++){ final long A = sc.nextLong(); final long B = sc.nextLong(); pw.println(pow(new Value(A), B)); } pw.flush(); } public 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() { 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(); } } } }