結果
問題 | No.473 和と積の和 |
ユーザー | uwi |
提出日時 | 2016-12-23 00:16:41 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 154 ms / 3,000 ms |
コード長 | 3,568 bytes |
コンパイル時間 | 4,903 ms |
コンパイル使用メモリ | 80,692 KB |
実行使用メモリ | 39,744 KB |
最終ジャッジ日時 | 2024-05-09 14:13:05 |
合計ジャッジ時間 | 8,492 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 49 ms
37,068 KB |
testcase_01 | AC | 50 ms
37,176 KB |
testcase_02 | AC | 51 ms
37,076 KB |
testcase_03 | AC | 110 ms
39,360 KB |
testcase_04 | AC | 51 ms
37,328 KB |
testcase_05 | AC | 50 ms
36,612 KB |
testcase_06 | AC | 49 ms
36,996 KB |
testcase_07 | AC | 50 ms
37,016 KB |
testcase_08 | AC | 51 ms
36,752 KB |
testcase_09 | AC | 50 ms
36,872 KB |
testcase_10 | AC | 50 ms
37,220 KB |
testcase_11 | AC | 54 ms
37,140 KB |
testcase_12 | AC | 51 ms
36,740 KB |
testcase_13 | AC | 52 ms
36,956 KB |
testcase_14 | AC | 52 ms
37,052 KB |
testcase_15 | AC | 50 ms
37,060 KB |
testcase_16 | AC | 52 ms
37,016 KB |
testcase_17 | AC | 51 ms
37,244 KB |
testcase_18 | AC | 49 ms
37,072 KB |
testcase_19 | AC | 51 ms
37,048 KB |
testcase_20 | AC | 52 ms
37,308 KB |
testcase_21 | AC | 54 ms
37,240 KB |
testcase_22 | AC | 49 ms
37,244 KB |
testcase_23 | AC | 57 ms
37,060 KB |
testcase_24 | AC | 61 ms
37,232 KB |
testcase_25 | AC | 154 ms
39,420 KB |
testcase_26 | AC | 103 ms
38,740 KB |
testcase_27 | AC | 127 ms
39,188 KB |
testcase_28 | AC | 50 ms
36,768 KB |
testcase_29 | AC | 49 ms
37,004 KB |
testcase_30 | AC | 50 ms
37,156 KB |
testcase_31 | AC | 52 ms
37,068 KB |
testcase_32 | AC | 51 ms
37,328 KB |
testcase_33 | AC | 50 ms
37,120 KB |
testcase_34 | AC | 118 ms
39,184 KB |
testcase_35 | AC | 124 ms
39,276 KB |
testcase_36 | AC | 54 ms
37,296 KB |
testcase_37 | AC | 52 ms
37,248 KB |
testcase_38 | AC | 127 ms
39,108 KB |
testcase_39 | AC | 98 ms
38,624 KB |
testcase_40 | AC | 118 ms
38,804 KB |
testcase_41 | AC | 109 ms
39,744 KB |
testcase_42 | AC | 131 ms
38,616 KB |
testcase_43 | AC | 140 ms
39,164 KB |
testcase_44 | AC | 133 ms
39,340 KB |
testcase_45 | AC | 51 ms
37,352 KB |
testcase_46 | AC | 50 ms
37,328 KB |
ソースコード
package adv2016; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.InputMismatchException; public class N473_2 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int n = ni(), x = ni(); x++; long[] ds = new long[2000]; int p = 0; for(int d = 1;d*d <= x;d++){ if(x % d == 0){ ds[p++] = d; if(d*d < x){ ds[p++] = x/d; } } } Arrays.sort(ds, 0, p); long[][] dp = new long[n+1][p]; dp[0][0] = 1; for(int i = 1;i < p;i++){ long d = ds[i]; for(int k = 0;k < p;k++){ long ne = ds[k] * d; int ind = Arrays.binarySearch(ds, 0, p, ne); if(ind < 0)continue; for(int j = 0;j < n;j++){ dp[j+1][ind] += dp[j][k]; } } } out.println(dp[n][p-1]); } 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 N473_2().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)); } }