結果
問題 | No.639 An Ordinary Sequence |
ユーザー | yuya178 |
提出日時 | 2018-01-26 22:53:55 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 61 ms / 1,000 ms |
コード長 | 4,345 bytes |
コンパイル時間 | 3,760 ms |
コンパイル使用メモリ | 83,772 KB |
実行使用メモリ | 57,356 KB |
最終ジャッジ日時 | 2023-08-30 12:48:48 |
合計ジャッジ時間 | 5,731 ms |
ジャッジサーバーID (参考情報) |
judge11 / judge13 |
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 | 59 ms
57,300 KB |
testcase_01 | AC | 61 ms
57,316 KB |
testcase_02 | AC | 46 ms
55,328 KB |
testcase_03 | AC | 46 ms
53,396 KB |
testcase_04 | AC | 46 ms
55,508 KB |
testcase_05 | AC | 46 ms
55,320 KB |
testcase_06 | AC | 46 ms
55,408 KB |
testcase_07 | AC | 46 ms
55,476 KB |
testcase_08 | AC | 45 ms
55,288 KB |
testcase_09 | AC | 47 ms
55,400 KB |
testcase_10 | AC | 47 ms
55,400 KB |
testcase_11 | AC | 46 ms
55,428 KB |
testcase_12 | AC | 48 ms
56,316 KB |
testcase_13 | AC | 50 ms
56,304 KB |
testcase_14 | AC | 52 ms
56,416 KB |
testcase_15 | AC | 57 ms
57,356 KB |
testcase_16 | AC | 61 ms
57,112 KB |
testcase_17 | AC | 46 ms
55,412 KB |
testcase_18 | AC | 59 ms
57,096 KB |
ソースコード
import java.io.*; import java.util.*; import java.math.*; // import java.awt.Point; public class Main { InputStream is; PrintWriter out; String INPUT = ""; long MOD = 1_000_000_007; long inf = Long.MAX_VALUE; void solve(){ long n = nl(); long ans = f(n); out.println(ans); } long[] seen = new long[1000001]; long f(long res){ if(res<=1000000){ if(seen[(int)res]>0) return seen[(int)res]; } if(res==0){ seen[(int)res] = 1; return 1; } long a = res/3; long b = res/5; long c = a/3; long d = a/5; long e = b/3; long g = b/5; if(a==0&&b==0){ if(res<=1000000) seen[(int)res] = 2; return 2; } else if(a==0){ if(res<=1000000) seen[(int)res] = 1 + f(e)+f(g); return 1 + f(e)+f(g); } else if(b==0){ if(res<=1000000) seen[(int)res] = 1 + f(c)+f(d); return 1 + f(c)+f(d); } if(d==e){ if(res<=1000000) seen[(int)res] = f(c)+2*f(e)+f(g); return f(c)+2*f(e)+f(g); } if(res<=1000000) seen[(int)res] = f(c)+f(d)+f(e)+f(g); return f(c)+f(d)+f(e)+f(g); } 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"); } public static void main(String[] args) throws Exception { new Main().run(); } private byte[] inbuf = new byte[1024]; private 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) && 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 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[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private int ni() { int num = 0, 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 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)); } }