VvyLw's Library

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:warning: Java/library/math/PrimeFactor.java

Depends on

Required by

Code

package library.math;

import java.util.TreeMap;

import library.core.Utility;

/**
 * n以下の整数に対して素因数分解可能なテーブルを作成するクラス
 */
public final class PrimeFactor {
	private final int[] spf;
	/**
	 * コンストラクタ
	 * @param n
	 */
	public PrimeFactor(final int n) {
		spf = Utility.iota(n + 1).toArray();
		for(int i = 2; i * i <= n; ++i) {
			if(spf[i] != i) {
				continue;
			}
			for(int j = i * i; j <= n; j += i) {
				if(spf[j] == j) {
					spf[j] = i;
				}
			}
		}
	}
	/**
	 * nを素因数分解した結果を返す
	 * @param n 整数
	 * @return nを素因数分解する
	 */
	public final TreeMap<Integer, Integer> get(int n) {
		final TreeMap<Integer, Integer> m = new TreeMap<>();
		while(n != 1) {
			m.merge(spf[n], 1, (a, b) -> (a + b));
			n /= spf[n];
		}
		return m;
	}
}
Traceback (most recent call last):
  File "/home/runner/.local/lib/python3.12/site-packages/onlinejudge_verify/documentation/build.py", line 71, in _render_source_code_stat
    bundled_code = language.bundle(stat.path, basedir=basedir, options={'include_paths': [basedir]}).decode()
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/.local/lib/python3.12/site-packages/onlinejudge_verify/languages/user_defined.py", line 68, in bundle
    raise RuntimeError('bundler is not specified: {}'.format(str(path)))
RuntimeError: bundler is not specified: Java/library/math/PrimeFactor.java
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