結果
問題 | No.1532 Different Products |
ユーザー | 37zigen |
提出日時 | 2021-06-04 23:06:50 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,570 ms / 4,000 ms |
コード長 | 3,340 bytes |
コンパイル時間 | 2,560 ms |
コンパイル使用メモリ | 79,112 KB |
実行使用メモリ | 379,876 KB |
最終ジャッジ日時 | 2024-04-30 11:43:48 |
合計ジャッジ時間 | 77,404 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 460 ms
379,496 KB |
testcase_01 | AC | 802 ms
379,592 KB |
testcase_02 | AC | 491 ms
379,632 KB |
testcase_03 | AC | 460 ms
379,532 KB |
testcase_04 | AC | 453 ms
379,488 KB |
testcase_05 | AC | 456 ms
379,536 KB |
testcase_06 | AC | 468 ms
379,604 KB |
testcase_07 | AC | 506 ms
379,480 KB |
testcase_08 | AC | 620 ms
379,856 KB |
testcase_09 | AC | 660 ms
379,716 KB |
testcase_10 | AC | 768 ms
379,740 KB |
testcase_11 | AC | 726 ms
379,432 KB |
testcase_12 | AC | 933 ms
379,628 KB |
testcase_13 | AC | 845 ms
379,740 KB |
testcase_14 | AC | 1,507 ms
379,584 KB |
testcase_15 | AC | 529 ms
379,744 KB |
testcase_16 | AC | 865 ms
379,480 KB |
testcase_17 | AC | 739 ms
379,680 KB |
testcase_18 | AC | 763 ms
379,576 KB |
testcase_19 | AC | 886 ms
379,668 KB |
testcase_20 | AC | 1,367 ms
379,628 KB |
testcase_21 | AC | 1,036 ms
379,500 KB |
testcase_22 | AC | 811 ms
379,660 KB |
testcase_23 | AC | 745 ms
379,624 KB |
testcase_24 | AC | 1,299 ms
379,668 KB |
testcase_25 | AC | 966 ms
379,484 KB |
testcase_26 | AC | 731 ms
379,620 KB |
testcase_27 | AC | 1,178 ms
379,516 KB |
testcase_28 | AC | 880 ms
379,484 KB |
testcase_29 | AC | 1,228 ms
379,616 KB |
testcase_30 | AC | 1,414 ms
379,504 KB |
testcase_31 | AC | 1,362 ms
379,580 KB |
testcase_32 | AC | 1,429 ms
379,672 KB |
testcase_33 | AC | 1,280 ms
379,716 KB |
testcase_34 | AC | 1,361 ms
379,552 KB |
testcase_35 | AC | 1,376 ms
379,532 KB |
testcase_36 | AC | 1,481 ms
379,716 KB |
testcase_37 | AC | 1,182 ms
379,624 KB |
testcase_38 | AC | 1,431 ms
379,668 KB |
testcase_39 | AC | 1,384 ms
379,876 KB |
testcase_40 | AC | 1,363 ms
379,496 KB |
testcase_41 | AC | 1,511 ms
379,664 KB |
testcase_42 | AC | 1,478 ms
379,648 KB |
testcase_43 | AC | 1,483 ms
379,492 KB |
testcase_44 | AC | 1,561 ms
379,660 KB |
testcase_45 | AC | 1,569 ms
379,544 KB |
testcase_46 | AC | 1,556 ms
379,660 KB |
testcase_47 | AC | 1,568 ms
379,708 KB |
testcase_48 | AC | 1,565 ms
379,616 KB |
testcase_49 | AC | 1,564 ms
379,544 KB |
testcase_50 | AC | 1,558 ms
379,776 KB |
testcase_51 | AC | 1,570 ms
379,720 KB |
testcase_52 | AC | 1,569 ms
379,516 KB |
testcase_53 | AC | 1,570 ms
379,640 KB |
testcase_54 | AC | 1,555 ms
379,720 KB |
testcase_55 | AC | 1,567 ms
379,516 KB |
testcase_56 | AC | 1,555 ms
379,636 KB |
testcase_57 | AC | 1,559 ms
379,756 KB |
testcase_58 | AC | 1,559 ms
379,504 KB |
testcase_59 | AC | 1,554 ms
379,716 KB |
testcase_60 | AC | 1,568 ms
379,612 KB |
testcase_61 | AC | 458 ms
379,644 KB |
testcase_62 | AC | 451 ms
379,592 KB |
testcase_63 | AC | 1,556 ms
379,624 KB |
ソースコード
import java.io.IOException; import java.io.InputStream; import java.math.BigInteger; import java.util.ArrayList; import java.util.Arrays; import java.util.NoSuchElementException; public class Main { public static void main(String[] args) { new Main().run(); } long dfs(long[][] dp, long[] dp2, int num, int v, long prd, long K) { long ret=0; if (num==3) ret+=dp2[(int)(K/prd)]; if (num>=4) return dp[v][(int)(K/prd)]; for (int i=v;i>20;--i) { ret+=dfs(dp, dp2, num+1, i-1, prd*i, K); } return ret; } void run() { FastScanner sc = new FastScanner(); int N=sc.nextInt(); long K=sc.nextLong(); long ans=0; long[][] dp=new long[201][(int)1e5]; long[] dp2=new long[(int)1e6]; { dp[0][1]=1; for (int i=1;i<=200;++i) { dp[i]=Arrays.copyOf(dp[i-1], dp[i-1].length); for (int j=1;j<dp[i-1].length;++j) { if (j*i<dp[i].length) dp[i][j*i]+=dp[i-1][j]; } } for (int i=0;i<=200;++i) { for (int j=1;j<dp[i].length;++j) { dp[i][j]+=dp[i][j-1]; } } } int max=Math.min(N, 20); for (int s=0;s<1<<max;++s) { long prd=1; for (int i=0;i<max;++i) { if ((s>>i)%2==1) { prd*=i+1; } } if (prd<=K) ++ans; if (prd<dp2.length) dp2[(int)prd]++; ans += Math.max(0, Math.min(N, K/prd)-20); long n=N; for (int m=21;m<=N;++m) { n=Math.min(N, K/m/prd); if (m>=n) break; ans += n-m; } } for (int i=1;i<dp2.length;++i) dp2[i]+=dp2[i-1]; ans+=dfs(dp, dp2, 0, N, 1, K); System.out.println(ans-1); } static 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()); } }