結果

問題 No.648  お や す み 
ユーザー yuya178yuya178
提出日時 2018-02-09 23:16:04
言語 Java19
(openjdk 21)
結果
AC  
実行時間 45 ms / 2,000 ms
コード長 3,650 bytes
コンパイル時間 2,420 ms
コンパイル使用メモリ 77,160 KB
実行使用メモリ 51,148 KB
最終ジャッジ日時 2023-10-11 22:11:12
合計ジャッジ時間 8,777 ms
ジャッジサーバーID
(参考情報)
judge12 / judge15
このコードへのチャレンジ(β)

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 42 ms
49,524 KB
testcase_01 AC 42 ms
49,368 KB
testcase_02 AC 42 ms
49,604 KB
testcase_03 AC 42 ms
49,292 KB
testcase_04 AC 43 ms
49,164 KB
testcase_05 AC 42 ms
49,084 KB
testcase_06 AC 43 ms
49,592 KB
testcase_07 AC 43 ms
49,228 KB
testcase_08 AC 42 ms
49,340 KB
testcase_09 AC 43 ms
49,212 KB
testcase_10 AC 43 ms
49,024 KB
testcase_11 AC 43 ms
49,520 KB
testcase_12 AC 43 ms
49,712 KB
testcase_13 AC 44 ms
49,256 KB
testcase_14 AC 41 ms
49,120 KB
testcase_15 AC 43 ms
49,180 KB
testcase_16 AC 43 ms
49,144 KB
testcase_17 AC 43 ms
49,100 KB
testcase_18 AC 42 ms
49,008 KB
testcase_19 AC 43 ms
49,012 KB
testcase_20 AC 43 ms
49,140 KB
testcase_21 AC 43 ms
49,232 KB
testcase_22 AC 45 ms
49,004 KB
testcase_23 AC 43 ms
49,048 KB
testcase_24 AC 44 ms
49,124 KB
testcase_25 AC 43 ms
49,348 KB
testcase_26 AC 43 ms
49,116 KB
testcase_27 AC 44 ms
49,284 KB
testcase_28 AC 44 ms
49,112 KB
testcase_29 AC 44 ms
49,528 KB
testcase_30 AC 44 ms
49,220 KB
testcase_31 AC 44 ms
49,092 KB
testcase_32 AC 44 ms
49,136 KB
testcase_33 AC 44 ms
49,152 KB
testcase_34 AC 44 ms
49,192 KB
testcase_35 AC 43 ms
47,304 KB
testcase_36 AC 43 ms
49,296 KB
testcase_37 AC 43 ms
49,112 KB
testcase_38 AC 42 ms
49,068 KB
testcase_39 AC 43 ms
47,212 KB
testcase_40 AC 43 ms
49,016 KB
testcase_41 AC 43 ms
49,424 KB
testcase_42 AC 43 ms
49,464 KB
testcase_43 AC 45 ms
49,532 KB
testcase_44 AC 44 ms
49,036 KB
testcase_45 AC 43 ms
49,052 KB
testcase_46 AC 42 ms
49,008 KB
testcase_47 AC 44 ms
49,120 KB
testcase_48 AC 43 ms
49,224 KB
testcase_49 AC 43 ms
49,292 KB
testcase_50 AC 43 ms
49,148 KB
testcase_51 AC 44 ms
49,520 KB
testcase_52 AC 43 ms
49,076 KB
testcase_53 AC 43 ms
49,044 KB
testcase_54 AC 43 ms
47,196 KB
testcase_55 AC 44 ms
49,220 KB
testcase_56 AC 44 ms
49,516 KB
testcase_57 AC 43 ms
49,092 KB
testcase_58 AC 43 ms
51,148 KB
testcase_59 AC 44 ms
49,000 KB
testcase_60 AC 44 ms
49,120 KB
testcase_61 AC 44 ms
49,220 KB
testcase_62 AC 44 ms
49,192 KB
testcase_63 AC 43 ms
49,472 KB
testcase_64 AC 44 ms
49,352 KB
testcase_65 AC 43 ms
49,044 KB
testcase_66 AC 44 ms
49,128 KB
testcase_67 AC 43 ms
49,516 KB
testcase_68 AC 43 ms
49,292 KB
testcase_69 AC 43 ms
49,220 KB
testcase_70 AC 44 ms
49,352 KB
testcase_71 AC 43 ms
49,076 KB
testcase_72 AC 43 ms
49,140 KB
testcase_73 AC 44 ms
49,068 KB
testcase_74 AC 44 ms
49,336 KB
testcase_75 AC 43 ms
49,044 KB
testcase_76 AC 43 ms
49,584 KB
testcase_77 AC 43 ms
49,672 KB
testcase_78 AC 43 ms
49,544 KB
testcase_79 AC 43 ms
49,084 KB
testcase_80 AC 44 ms
49,160 KB
testcase_81 AC 44 ms
49,520 KB
testcase_82 AC 43 ms
49,360 KB
testcase_83 AC 43 ms
49,216 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.*;
import java.util.*;
import java.math.*;
// import java.awt.Point;
 
public class Main {
    InputStream is;
    PrintWriter out;
    String INPUT = "";
 
    long mod = 1_000_000_007;
    int inf = Integer.MAX_VALUE;

    void solve(){
        long n = nl();
        long res = (long)Math.ceil(Math.sqrt(2*n));
        for(long i = Math.max(0, res-1000); i <= res+1000; i++){
            long tmp = i*(i+1)/2;
            if(tmp==n){
                out.println("YES");
                out.println(i);
                return;
            }
        }
        out.println("NO");
    }


    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");
    }
    
    public static void main(String[] args) throws Exception { new Main().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) && 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 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[] na(int n)
    {
        int[] a = new int[n];
        for(int i = 0;i < n;i++)a[i] = ni();
        return a;
    }
    
    private int ni()
    {
        int num = 0, 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 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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