結果
問題 | No.1973 Divisor Sequence |
ユーザー |
|
提出日時 | 2022-06-10 23:04:39 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 900 ms / 2,000 ms |
コード長 | 2,784 bytes |
コンパイル時間 | 2,435 ms |
コンパイル使用メモリ | 78,968 KB |
実行使用メモリ | 232,152 KB |
最終ジャッジ日時 | 2024-09-21 07:31:32 |
合計ジャッジ時間 | 12,238 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 22 |
ソースコード
import java.io.IOException;import java.io.InputStream;import java.io.PrintWriter;import java.util.ArrayList;import java.util.Arrays;import java.util.NoSuchElementException;import java.util.Scanner;public class Main implements Runnable {public static void main(String[] args) throws IOException {new Thread(null, new Main(), "", Runtime.getRuntime().maxMemory()).start();}long mod=(long)1e9+7;long solve(int N, int E) {long[][] dp=new long[N+1][E+2];dp[0][0]=1;for (int i=0;i<N;++i) {int ni=i+1;for (int ne=E;ne>=0;--ne) {dp[ni][ne]=dp[ni][ne+1]+dp[i][E-ne];dp[ni][ne]%=mod;}}long ans=0;for (int e=0;e<=E;++e) ans=(ans+dp[N][e])%mod;return ans;}public void run() {Scanner sc = new Scanner(System.in);PrintWriter pw = new PrintWriter(System.out);int N=sc.nextInt();long M=sc.nextLong();long ans=1;for (long p=2;p*p<=M;++p) {int e=0;while (M%p==0) {M/=p;++e;}if (e>0) {ans=ans*solve(N, e)%mod;}}if (M>1) ans=ans*solve(N, 1)%mod;System.out.println(ans);}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++];elsereturn -1;}private static boolean isPrintableChar(int c) {return 33 <= c && c <= 126;}private void skipUnprintable() {while (hasNextByte() && !isPrintableChar(buffer[ptr]))ptr++;}public boolean hasNext() {skipUnprintable();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() {return (int) nextLong();}}