結果

問題 No.634 硬貨の枚数1
ユーザー uwiuwi
提出日時 2018-01-19 21:55:34
言語 Java21
(openjdk 21)
結果
AC  
実行時間 83 ms / 2,000 ms
コード長 3,547 bytes
コンパイル時間 4,465 ms
コンパイル使用メモリ 93,904 KB
実行使用メモリ 38,012 KB
最終ジャッジ日時 2024-06-07 14:07:07
合計ジャッジ時間 11,857 ms
ジャッジサーバーID
(参考情報)
judge3 / judge5
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
36,632 KB
testcase_01 AC 57 ms
36,628 KB
testcase_02 AC 56 ms
36,936 KB
testcase_03 AC 57 ms
36,768 KB
testcase_04 AC 58 ms
37,116 KB
testcase_05 AC 57 ms
36,720 KB
testcase_06 AC 56 ms
37,116 KB
testcase_07 AC 56 ms
36,724 KB
testcase_08 AC 56 ms
36,460 KB
testcase_09 AC 58 ms
36,468 KB
testcase_10 AC 55 ms
36,724 KB
testcase_11 AC 56 ms
36,676 KB
testcase_12 AC 56 ms
36,420 KB
testcase_13 AC 56 ms
36,724 KB
testcase_14 AC 72 ms
37,836 KB
testcase_15 AC 79 ms
37,428 KB
testcase_16 AC 74 ms
37,276 KB
testcase_17 AC 78 ms
37,228 KB
testcase_18 AC 77 ms
37,236 KB
testcase_19 AC 74 ms
37,884 KB
testcase_20 AC 74 ms
37,512 KB
testcase_21 AC 82 ms
37,528 KB
testcase_22 AC 83 ms
37,740 KB
testcase_23 AC 72 ms
37,556 KB
testcase_24 AC 56 ms
36,476 KB
testcase_25 AC 57 ms
37,024 KB
testcase_26 AC 56 ms
36,764 KB
testcase_27 AC 55 ms
36,744 KB
testcase_28 AC 57 ms
36,800 KB
testcase_29 AC 56 ms
36,764 KB
testcase_30 AC 55 ms
36,764 KB
testcase_31 AC 56 ms
36,800 KB
testcase_32 AC 57 ms
36,892 KB
testcase_33 AC 57 ms
36,448 KB
testcase_34 AC 73 ms
38,012 KB
testcase_35 AC 74 ms
37,580 KB
testcase_36 AC 79 ms
37,324 KB
testcase_37 AC 78 ms
37,564 KB
testcase_38 AC 74 ms
37,664 KB
testcase_39 AC 78 ms
37,660 KB
testcase_40 AC 80 ms
37,532 KB
testcase_41 AC 75 ms
37,284 KB
testcase_42 AC 78 ms
37,748 KB
testcase_43 AC 74 ms
37,836 KB
testcase_44 AC 57 ms
36,948 KB
testcase_45 AC 59 ms
36,764 KB
testcase_46 AC 70 ms
37,696 KB
testcase_47 AC 79 ms
37,376 KB
testcase_48 AC 55 ms
36,940 KB
testcase_49 AC 65 ms
36,900 KB
testcase_50 AC 81 ms
37,488 KB
testcase_51 AC 72 ms
37,664 KB
testcase_52 AC 56 ms
36,800 KB
testcase_53 AC 56 ms
36,976 KB
testcase_54 AC 57 ms
37,024 KB
testcase_55 AC 83 ms
37,220 KB
testcase_56 AC 82 ms
37,304 KB
testcase_57 AC 81 ms
37,216 KB
testcase_58 AC 80 ms
37,520 KB
testcase_59 AC 81 ms
37,436 KB
testcase_60 AC 80 ms
37,652 KB
testcase_61 AC 79 ms
37,228 KB
testcase_62 AC 80 ms
37,776 KB
testcase_63 AC 79 ms
37,708 KB
testcase_64 AC 83 ms
37,440 KB
testcase_65 AC 80 ms
37,664 KB
testcase_66 AC 81 ms
37,480 KB
testcase_67 AC 81 ms
37,272 KB
testcase_68 AC 81 ms
37,428 KB
testcase_69 AC 83 ms
37,228 KB
testcase_70 AC 79 ms
37,884 KB
testcase_71 AC 83 ms
37,644 KB
testcase_72 AC 80 ms
37,480 KB
testcase_73 AC 78 ms
37,472 KB
testcase_74 AC 79 ms
37,644 KB
testcase_75 AC 80 ms
37,228 KB
testcase_76 AC 56 ms
36,796 KB
testcase_77 AC 56 ms
36,440 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 contest180119;
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 C {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		int n = ni();
		for(int i = 1;i*(i+1)/2 <= n;i++){
			if(i*(i+1)/2 == n){
				out.println(1);
				return;
			}
		}
		for(int i = 1;i*(i+1)/2 <= n;i++){
			for(int j = i;j*(j+1)/2+i*(i+1)/2 <= n;j++){
				if(i*(i+1)/2+j*(j+1)/2 == n){
					out.println(2);
					return;
				}
			}
		}
		out.println(3);
//		
//		int[] dp = new int[1000];
//		Arrays.fill(dp, 999999);
//		dp[0] = 0;
//		for(int i = 1;i < 1000;i++){
//			for(int j = 1;j*(j+1)/2 <= i;j++){
//				dp[i] = Math.min(dp[i], dp[i-j*(j+1)/2] + 1);
//			}
//		}
//		tr(dp);
	}
	
	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 C().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)); }
}
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