結果
問題 | No.757 チャンパーノウン定数 (2) |
ユーザー | uwi |
提出日時 | 2018-12-04 23:02:36 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,449 ms / 2,000 ms |
コード長 | 3,926 bytes |
コンパイル時間 | 4,025 ms |
コンパイル使用メモリ | 83,532 KB |
実行使用メモリ | 53,812 KB |
最終ジャッジ日時 | 2024-07-08 10:18:44 |
合計ジャッジ時間 | 21,891 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | AC | 50 ms
36,772 KB |
testcase_01 | AC | 50 ms
37,240 KB |
testcase_02 | AC | 49 ms
37,068 KB |
testcase_03 | AC | 48 ms
37,228 KB |
testcase_04 | AC | 49 ms
37,160 KB |
testcase_05 | AC | 48 ms
37,312 KB |
testcase_06 | AC | 47 ms
36,744 KB |
testcase_07 | AC | 49 ms
37,180 KB |
testcase_08 | AC | 50 ms
36,836 KB |
testcase_09 | AC | 49 ms
37,116 KB |
testcase_10 | AC | 49 ms
37,152 KB |
testcase_11 | AC | 49 ms
37,172 KB |
testcase_12 | AC | 50 ms
36,912 KB |
testcase_13 | AC | 50 ms
37,412 KB |
testcase_14 | AC | 49 ms
37,124 KB |
testcase_15 | AC | 49 ms
37,344 KB |
testcase_16 | AC | 50 ms
37,116 KB |
testcase_17 | AC | 49 ms
37,264 KB |
testcase_18 | AC | 49 ms
37,064 KB |
testcase_19 | AC | 48 ms
36,836 KB |
testcase_20 | AC | 49 ms
37,024 KB |
testcase_21 | AC | 48 ms
37,172 KB |
testcase_22 | AC | 49 ms
37,116 KB |
testcase_23 | AC | 52 ms
37,080 KB |
testcase_24 | AC | 49 ms
37,340 KB |
testcase_25 | AC | 50 ms
36,836 KB |
testcase_26 | AC | 51 ms
37,184 KB |
testcase_27 | AC | 50 ms
36,952 KB |
testcase_28 | AC | 884 ms
51,288 KB |
testcase_29 | AC | 977 ms
51,116 KB |
testcase_30 | AC | 130 ms
40,248 KB |
testcase_31 | AC | 129 ms
40,396 KB |
testcase_32 | AC | 55 ms
37,192 KB |
testcase_33 | AC | 240 ms
44,348 KB |
testcase_34 | AC | 505 ms
45,708 KB |
testcase_35 | AC | 113 ms
40,788 KB |
testcase_36 | AC | 176 ms
41,552 KB |
testcase_37 | AC | 711 ms
46,616 KB |
testcase_38 | AC | 856 ms
51,556 KB |
testcase_39 | AC | 983 ms
51,364 KB |
testcase_40 | AC | 1,449 ms
53,812 KB |
testcase_41 | AC | 1,312 ms
52,824 KB |
testcase_42 | AC | 259 ms
45,916 KB |
testcase_43 | AC | 590 ms
48,244 KB |
testcase_44 | AC | 1,394 ms
52,356 KB |
testcase_45 | AC | 1,068 ms
52,192 KB |
testcase_46 | AC | 413 ms
49,344 KB |
testcase_47 | AC | 1,255 ms
52,236 KB |
testcase_48 | AC | 768 ms
46,172 KB |
testcase_49 | AC | 978 ms
52,216 KB |
testcase_50 | AC | 51 ms
37,192 KB |
testcase_51 | AC | 50 ms
37,268 KB |
testcase_52 | AC | 49 ms
37,268 KB |
testcase_53 | AC | 47 ms
37,172 KB |
ソースコード
package adv2018; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.math.BigInteger; import java.util.Arrays; import java.util.InputMismatchException; public class Day5 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int b = ni(); String x = ns(); out.println(getOfChampernowneConstant(new BigInteger(x, b), b)); } public static int getOfChampernowneConstant(BigInteger n, int b) { n = n.subtract(BigInteger.ONE); int high = n.toString(b).length() + 1; int low = 0; while(high - low > 1) { int h = high+low>>1; BigInteger S = b((b-1)*h-1).multiply(BigInteger.valueOf(b).pow(h)).add(BigInteger.ONE).divide(b(b-1)); if(n.compareTo(S) >= 0) { low = h; }else { high = h; } } // len = high BigInteger S = b((b-1)*low-1).multiply(BigInteger.valueOf(b).pow(low)).add(BigInteger.ONE).divide(b(b-1)); n = n.subtract(S); BigInteger[] qr = n.divideAndRemainder(b(high)); String ret = BigInteger.valueOf(b).pow(low).add(qr[0]).toString(b); return ret.charAt(qr[1].intValue()) - '0'; } public static BigInteger b(long x){ return BigInteger.valueOf(x); } void run() throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); long s = System.currentTimeMillis(); solve(); out.flush(); if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } public static void main(String[] args) throws Exception { new Day5().run(); } private byte[] inbuf = new byte[1024]; public int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ') sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[][] nmi(int n, int m) { int[][] map = new int[n][]; for(int i = 0;i < n;i++)map[i] = na(m); return map; } private int ni() { return (int)nl(); } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); } }