結果

問題 No.293 4>7の世界
ユーザー uwiuwi
提出日時 2015-10-22 22:04:07
言語 Java21
(openjdk 21)
結果
AC  
実行時間 59 ms / 2,000 ms
コード長 3,886 bytes
コンパイル時間 4,476 ms
コンパイル使用メモリ 80,900 KB
実行使用メモリ 36,980 KB
最終ジャッジ日時 2024-12-30 11:00:02
合計ジャッジ時間 7,139 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge1
このコードへのチャレンジ
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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 56 ms
36,852 KB
testcase_01 AC 55 ms
36,680 KB
testcase_02 AC 54 ms
36,728 KB
testcase_03 AC 56 ms
36,480 KB
testcase_04 AC 56 ms
36,452 KB
testcase_05 AC 56 ms
36,664 KB
testcase_06 AC 58 ms
36,728 KB
testcase_07 AC 59 ms
36,480 KB
testcase_08 AC 56 ms
36,736 KB
testcase_09 AC 56 ms
36,432 KB
testcase_10 AC 58 ms
36,980 KB
testcase_11 AC 59 ms
36,864 KB
testcase_12 AC 55 ms
36,812 KB
testcase_13 AC 58 ms
36,832 KB
testcase_14 AC 58 ms
36,672 KB
testcase_15 AC 54 ms
36,828 KB
testcase_16 AC 57 ms
36,816 KB
testcase_17 AC 59 ms
36,940 KB
testcase_18 AC 57 ms
36,580 KB
testcase_19 AC 58 ms
36,580 KB
testcase_20 AC 56 ms
36,968 KB
testcase_21 AC 57 ms
36,968 KB
testcase_22 AC 56 ms
36,872 KB
testcase_23 AC 55 ms
36,848 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 # 

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 Q728 {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		int a = ni(), b = ni();
		if(!(a >= 0 && a <= 2000000000))throw new RuntimeException("a out of range");
		if(!(b >= 0 && b <= 2000000000))throw new RuntimeException("b out of range");
		if(a == b)throw new RuntimeException("a=b");
		char[] sa = Integer.toString(a).toCharArray();
		char[] sb = Integer.toString(b).toCharArray();
		if(sa.length > sb.length){
			out.println(a);
		}else if(sa.length < sb.length){
			out.println(b);
		}else{
			for(int i = 0;i < sa.length;i++){
				if(sa[i] != sb[i]){
					if(sa[i] == '4' && sb[i] == '7'){
						out.println(a);
					}else if(sa[i] == '7' && sb[i] == '4'){
						out.println(b);
					}else if(sa[i] < sb[i]){
						out.println(b);
					}else if(sa[i] > sb[i]){
						out.println(a);
					}else{
						throw new RuntimeException("cannot come here");
					}
					return;
				}
			}
			throw new RuntimeException("cannot come here");
		}
	}
	
	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 Q728().run(); }
	
	private byte[] inbuf = new byte[1024];
	private 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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