結果
| 問題 |
No.390 最長の数列
|
| コンテスト | |
| ユーザー |
uafr_cs
|
| 提出日時 | 2017-11-02 19:48:24 |
| 言語 | Java (openjdk 23) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,312 bytes |
| コンパイル時間 | 2,614 ms |
| コンパイル使用メモリ | 78,680 KB |
| 実行使用メモリ | 86,076 KB |
| 最終ジャッジ日時 | 2024-11-22 13:48:12 |
| 合計ジャッジ時間 | 46,476 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 8 TLE * 7 |
ソースコード
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.StringTokenizer;
public class Main {
public static int dfs(int N, int curr, int[] array, int[] memo){
if(memo[curr] >= 0){ return memo[curr]; }
int answer = 1;
for(int i = curr + 1; i < N; i++){
if(array[i] % array[curr] != 0){ continue; }
answer = Math.max(answer, dfs(N, i, array, memo) + 1);
}
return memo[curr] = answer;
}
public static void main(String[] args) throws IOException {
Scanner sc = new Scanner(System.in);
final int N = sc.nextInt();
int[] array = sc.nextIntArray(N);
Arrays.sort(array);
int[] memo = new int[N];
Arrays.fill(memo, -1);
int max = 0;
for(int start = 0; start < N; start++){
max = Math.max(max, dfs(N, start, array, memo));
}
//System.out.println(Arrays.toString(array));
//System.out.println(Arrays.toString(memo));
System.out.println(max);
}
public static class Scanner implements Closeable {
private BufferedReader br;
private StringTokenizer tok;
public Scanner(InputStream is) throws IOException {
br = new BufferedReader(new InputStreamReader(is));
}
private void getLine() throws IOException {
while (!hasNext()) {
tok = new StringTokenizer(br.readLine());
}
}
private boolean hasNext() {
return tok != null && tok.hasMoreTokens();
}
public String next() throws IOException {
getLine();
return tok.nextToken();
}
public int nextInt() throws IOException {
return Integer.parseInt(next());
}
public long nextLong() throws IOException {
return Long.parseLong(next());
}
public double nextDouble() throws IOException {
return Double.parseDouble(next());
}
public int[] nextIntArray(int n) throws IOException {
final int[] ret = new int[n];
for (int i = 0; i < n; i++) {
ret[i] = this.nextInt();
}
return ret;
}
public long[] nextLongArray(int n) throws IOException {
final long[] ret = new long[n];
for (int i = 0; i < n; i++) {
ret[i] = this.nextLong();
}
return ret;
}
public void close() throws IOException {
br.close();
}
}
}
uafr_cs