Submission #725139
Source Code Expand
import java.io.IOException; import java.io.InputStream; import java.util.NoSuchElementException; public class Main { public static void main(String[] args) { FastScanner sc = new FastScanner(); long A = sc.nextLong(); long B = sc.nextLong(); System.out.println(calc(B) - calc(A - 1)); } private static long calc(long X) { String s = Long.toString(X); long[][][] dp = new long[s.length() + 1][2][2]; dp[0][0][0] = 1; for (int i = 0; i < s.length(); i ++) { for (int j = 0; j < 2; j ++) { int lim = j == 1 ? 9 : s.charAt(i) - '0'; for (int k = 0; k < 2; k ++) { for (int d = 0; d <= lim; d ++) { dp[i + 1][j > 0 || d < lim ? 1 : 0][k > 0 || d == 4 || d == 9 ? 1 : 0] += dp[i][j][k]; } } } } return dp[s.length()][0][1] + dp[s.length()][1][1]; } } class FastScanner { public static String debug = null; private final InputStream in = System.in; private int ptr = 0; private int buflen = 0; private byte[] buffer = new byte[1024]; private boolean eos = false; private boolean hasNextByte() { if (ptr < buflen) { return true; } else { ptr = 0; try { if (debug != null) { buflen = debug.length(); buffer = debug.getBytes(); debug = ""; eos = true; } else { buflen = in.read(buffer); } } catch (IOException e) { e.printStackTrace(); } if (buflen < 0) { eos = true; return false; } else 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 isEOS() { return this.eos; } 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(); } } public int nextInt() { return (int) nextLong(); } public long[] nextLongList(int n) { return nextLongTable(1, n)[0]; } public int[] nextIntList(int n) { return nextIntTable(1, n)[0]; } public long[][] nextLongTable(int n, int m) { long[][] ret = new long[n][m]; for (int i = 0; i < n; i ++) { for (int j = 0; j < m; j ++) { ret[i][j] = nextLong(); } } return ret; } public int[][] nextIntTable(int n, int m) { int[][] ret = new int[n][m]; for (int i = 0; i < n; i ++) { for (int j = 0; j < m; j ++) { ret[i][j] = nextInt(); } } return ret; } }
Submission Info
Submission Time | |
---|---|
Task | D - 禁止された数字 |
User | hiromi_ayase |
Language | Java (OpenJDK 1.7.0) |
Score | 100 |
Code Size | 3439 Byte |
Status | AC |
Exec Time | 381 ms |
Memory | 20204 KB |
Judge Result
Set Name | Sample | Subtask1 | Subtask2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 30 / 30 | 70 / 70 | ||||||
Status |
|
|
|
Set Name | Test Cases |
---|---|
Sample | subtask0_sample01.txt, subtask0_sample02.txt, subtask0_sample03.txt, subtask0_sample04.txt |
Subtask1 | subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask0_sample01.txt, subtask0_sample02.txt, subtask0_sample03.txt |
Subtask2 | subtask0_sample01.txt, subtask0_sample02.txt, subtask0_sample03.txt, subtask0_sample04.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt, subtask2_13.txt, subtask2_14.txt, subtask2_15.txt, subtask2_16.txt, subtask2_17.txt, subtask2_18.txt, subtask2_19.txt, subtask2_20.txt, subtask2_21.txt, subtask2_22.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
subtask0_sample01.txt | AC | 308 ms | 20204 KB |
subtask0_sample02.txt | AC | 294 ms | 20180 KB |
subtask0_sample03.txt | AC | 293 ms | 20016 KB |
subtask0_sample04.txt | AC | 296 ms | 20100 KB |
subtask1_01.txt | AC | 298 ms | 20072 KB |
subtask1_02.txt | AC | 295 ms | 20064 KB |
subtask1_03.txt | AC | 294 ms | 20192 KB |
subtask1_04.txt | AC | 311 ms | 20144 KB |
subtask1_05.txt | AC | 300 ms | 20144 KB |
subtask1_06.txt | AC | 296 ms | 20128 KB |
subtask1_07.txt | AC | 297 ms | 20144 KB |
subtask1_08.txt | AC | 293 ms | 20140 KB |
subtask1_09.txt | AC | 296 ms | 20080 KB |
subtask1_10.txt | AC | 297 ms | 20172 KB |
subtask1_11.txt | AC | 290 ms | 20068 KB |
subtask1_12.txt | AC | 286 ms | 20072 KB |
subtask1_13.txt | AC | 289 ms | 20104 KB |
subtask2_01.txt | AC | 303 ms | 20096 KB |
subtask2_02.txt | AC | 289 ms | 20164 KB |
subtask2_03.txt | AC | 287 ms | 20104 KB |
subtask2_04.txt | AC | 287 ms | 20120 KB |
subtask2_05.txt | AC | 288 ms | 20072 KB |
subtask2_06.txt | AC | 290 ms | 20136 KB |
subtask2_07.txt | AC | 289 ms | 20144 KB |
subtask2_08.txt | AC | 287 ms | 20168 KB |
subtask2_09.txt | AC | 288 ms | 20192 KB |
subtask2_10.txt | AC | 292 ms | 20148 KB |
subtask2_11.txt | AC | 288 ms | 20148 KB |
subtask2_12.txt | AC | 290 ms | 20140 KB |
subtask2_13.txt | AC | 295 ms | 20128 KB |
subtask2_14.txt | AC | 303 ms | 20144 KB |
subtask2_15.txt | AC | 288 ms | 20120 KB |
subtask2_16.txt | AC | 305 ms | 20120 KB |
subtask2_17.txt | AC | 330 ms | 20072 KB |
subtask2_18.txt | AC | 293 ms | 20076 KB |
subtask2_19.txt | AC | 295 ms | 20144 KB |
subtask2_20.txt | AC | 297 ms | 20056 KB |
subtask2_21.txt | AC | 317 ms | 20140 KB |
subtask2_22.txt | AC | 381 ms | 20052 KB |