結果

問題 No.917 Make One With GCD
ユーザー uwiuwi
提出日時 2019-10-25 21:50:57
言語 Java21
(openjdk 21)
結果
AC  
実行時間 59 ms / 2,000 ms
コード長 3,991 bytes
コンパイル時間 5,271 ms
コンパイル使用メモリ 81,092 KB
実行使用メモリ 51,968 KB
最終ジャッジ日時 2024-06-24 11:03:46
合計ジャッジ時間 7,260 ms
ジャッジサーバーID
(参考情報)
judge1 / judge3
このコードへのチャレンジ
(要ログイン)

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 58 ms
49,904 KB
testcase_01 AC 53 ms
50,228 KB
testcase_02 AC 54 ms
50,092 KB
testcase_03 AC 54 ms
49,868 KB
testcase_04 AC 54 ms
50,040 KB
testcase_05 AC 54 ms
50,188 KB
testcase_06 AC 55 ms
50,364 KB
testcase_07 AC 54 ms
50,240 KB
testcase_08 AC 55 ms
50,304 KB
testcase_09 AC 59 ms
50,316 KB
testcase_10 AC 59 ms
50,380 KB
testcase_11 AC 59 ms
49,940 KB
testcase_12 AC 59 ms
50,424 KB
testcase_13 AC 58 ms
50,396 KB
testcase_14 AC 58 ms
50,404 KB
testcase_15 AC 58 ms
49,916 KB
testcase_16 AC 57 ms
50,088 KB
testcase_17 AC 54 ms
50,232 KB
testcase_18 AC 55 ms
50,016 KB
testcase_19 AC 54 ms
49,936 KB
testcase_20 AC 54 ms
50,000 KB
testcase_21 AC 54 ms
50,280 KB
testcase_22 AC 54 ms
50,280 KB
testcase_23 AC 55 ms
49,888 KB
testcase_24 AC 55 ms
50,032 KB
testcase_25 AC 57 ms
50,260 KB
testcase_26 AC 54 ms
49,956 KB
testcase_27 AC 54 ms
50,564 KB
testcase_28 AC 53 ms
50,408 KB
testcase_29 AC 53 ms
50,396 KB
testcase_30 AC 54 ms
49,960 KB
testcase_31 AC 54 ms
49,764 KB
testcase_32 AC 56 ms
51,968 KB
testcase_33 AC 55 ms
50,352 KB
testcase_34 AC 54 ms
50,040 KB
testcase_35 AC 55 ms
50,540 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

package contest191025;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.InputMismatchException;
import java.util.Map;

public class D {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		int n = ni();
		int[] a = na(n);
		Map<Integer, Long> map = new HashMap<>();
		map.put(0, 1L);
		for(int v : a) {
			Map<Integer, Long> lmap = new HashMap<>();
			for(int key : map.keySet()) {
				int g = gcd(v, key);
				if(lmap.containsKey(g)) {
					lmap.put(g, lmap.get(g) + map.get(key));
				}else {
					lmap.put(g, map.get(key));
				}
			}
			for(int key : lmap.keySet()) {
				if(map.containsKey(key)) {
					map.put(key, lmap.get(key) + map.get(key));
				}else {
					map.put(key, lmap.get(key));
				}
			}
		}
		out.println(map.getOrDefault(1, 0L));
	}
	
	public static int gcd(int a, int b) {
		while (b > 0) {
			int c = a;
			a = b;
			b = c % b;
		}
		return a;
	}
	
	
	void run() throws Exception
	{
//		int n = 50, m = 99999;
//		Random gen = new Random();
//		StringBuilder sb = new StringBuilder();
//		sb.append(n + " ");
//		for (int i = 0; i < n; i++) {
//			sb.append(gen.nextInt(100)*720720 + " ");
//		}
//		INPUT = sb.toString();

		
		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 D().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)); }
}
0