結果
問題 | No.319 happy b1rthday 2 me |
ユーザー | 37zigen |
提出日時 | 2020-04-10 06:23:54 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 51 ms / 2,000 ms |
コード長 | 3,215 bytes |
コンパイル時間 | 2,538 ms |
コンパイル使用メモリ | 78,300 KB |
実行使用メモリ | 36,860 KB |
最終ジャッジ日時 | 2024-09-14 12:51:04 |
合計ジャッジ時間 | 5,290 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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
36,460 KB |
testcase_01 | AC | 50 ms
36,268 KB |
testcase_02 | AC | 49 ms
36,640 KB |
testcase_03 | AC | 50 ms
36,732 KB |
testcase_04 | AC | 50 ms
36,552 KB |
testcase_05 | AC | 51 ms
36,860 KB |
testcase_06 | AC | 50 ms
36,724 KB |
testcase_07 | AC | 50 ms
36,596 KB |
testcase_08 | AC | 50 ms
36,596 KB |
testcase_09 | AC | 51 ms
36,460 KB |
testcase_10 | AC | 51 ms
36,784 KB |
testcase_11 | AC | 50 ms
36,268 KB |
testcase_12 | AC | 51 ms
36,548 KB |
testcase_13 | AC | 50 ms
36,424 KB |
testcase_14 | AC | 50 ms
36,456 KB |
testcase_15 | AC | 51 ms
36,648 KB |
testcase_16 | AC | 51 ms
36,540 KB |
testcase_17 | AC | 51 ms
36,396 KB |
testcase_18 | AC | 50 ms
36,784 KB |
testcase_19 | AC | 50 ms
36,716 KB |
testcase_20 | AC | 50 ms
36,436 KB |
testcase_21 | AC | 51 ms
36,620 KB |
testcase_22 | AC | 51 ms
36,212 KB |
testcase_23 | AC | 50 ms
36,680 KB |
testcase_24 | AC | 50 ms
36,776 KB |
testcase_25 | AC | 51 ms
36,268 KB |
testcase_26 | AC | 51 ms
36,364 KB |
testcase_27 | AC | 51 ms
36,472 KB |
testcase_28 | AC | 51 ms
36,404 KB |
testcase_29 | AC | 51 ms
36,772 KB |
testcase_30 | AC | 51 ms
36,512 KB |
testcase_31 | AC | 51 ms
36,340 KB |
testcase_32 | AC | 50 ms
36,704 KB |
ソースコード
import java.io.IOException; import java.io.InputStream; import java.math.BigInteger; import java.util.Arrays; import java.util.NoSuchElementException; public class Main { public static void main(String[] args) { new Main().run(); } int[] toIntArray(char[] a) { int[] ret=new int[a.length]; for (int i=0;i<a.length;++i) ret[i]=(int)(a[i]-'0'); return ret; } long[] p10=new long[18]; { p10[0]=1; for (int i=1;i<p10.length;++i) p10[i]=10*p10[i-1]; } long f(long a) { long ret=0; for (int i=0;i<14;++i) { ret+=(a-12*p10[i])/p10[i+2]*p10[i]; if (a-12*p10[i]>=0) ret+=Math.min(p10[i]-1,(a-12*p10[i])%p10[i+2])+1; } return ret; } long g(long a) { long ret=a>=1?1:0; for (int i=1;i<13;++i) { if (3*p10[i]<=a) { ret+=p10[i-1]; } else { if (a>=2*p10[i]+1) ret+=(a-2*p10[i]-1)/10+1; break; } } return ret; } void run() { FastScanner sc=new FastScanner(); long a=sc.nextLong(); long b=sc.nextLong(); long ans=f(b)-f(a-1) + g(b-1)-g(a-1); System.out.println(ans); } void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));} } 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;} public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; 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() { long nl = nextLong(); if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); return (int) nl; } public double nextDouble() { return Double.parseDouble(next());} }