結果

問題 No.545 ママの大事な二人の子供
ユーザー yuya178yuya178
提出日時 2017-09-27 12:57:21
言語 Java21
(openjdk 21)
結果
WA  
実行時間 -
コード長 5,369 bytes
コンパイル時間 2,795 ms
コンパイル使用メモリ 88,516 KB
実行使用メモリ 54,788 KB
最終ジャッジ日時 2024-04-27 14:45:21
合計ジャッジ時間 6,120 ms
ジャッジサーバーID
（参考情報） 		judge5 / 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 62 ms
37,952 KB
testcase_01 AC 73 ms
37,860 KB
testcase_02 AC 60 ms
37,776 KB
testcase_03 WA -
testcase_04 AC 61 ms
41,332 KB
testcase_05 RE -
testcase_06 WA -
testcase_07 AC 59 ms
37,828 KB
testcase_08 AC 55 ms
37,704 KB
testcase_09 AC 53 ms
37,704 KB
testcase_10 AC 55 ms
37,612 KB
testcase_11 RE -
testcase_12 AC 57 ms
37,708 KB
testcase_13 RE -
testcase_14 AC 55 ms
37,224 KB
testcase_15 AC 58 ms
37,992 KB
testcase_16 AC 60 ms
38,220 KB
testcase_17 AC 59 ms
37,956 KB
testcase_18 AC 63 ms
38,096 KB
testcase_19 AC 76 ms
38,064 KB
testcase_20 AC 85 ms
38,576 KB
testcase_21 WA -
testcase_22 AC 150 ms
40,424 KB
testcase_23 WA -
testcase_24 WA -
testcase_25 AC 183 ms
42,120 KB
testcase_26 RE -
testcase_27 WA -
testcase_28 AC 200 ms
40,932 KB
testcase_29 WA -
testcase_30 WA -
testcase_31 WA -
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.*;

public class Main {
    static InputStream is;
    static PrintWriter out;
    static String INPUT = "";
    
    static void solve()
    {
        int n = ni();
        int[] a = new int[n];
        int[] b = new int[n];
        for(int i = 0; i < n; i++){
            a[i] = ni();
            b[i] = ni();
        }
        int h = n/2;
        long[] res = new long[1<<h];
        for(int i = 0; i < 1<<h; i++){
            long s = 0;
            for(int j = 0; j < h; j++){
                if(i<<~j < 0){
                    s += a[j];
                }
                else s -= b[j];
            }
            res[i] = s;
        }
        Arrays.sort(res);
        long ans = Long.MAX_VALUE;
        for(int i = 0; i < 1<<(n-h); i++){
            long s = 0;
            for(int j = 0; j < n-h; j++){
                if(i<<~j < 0){
                    s += a[j+h];
                }
                else s -= b[j+h];
            }
            int id = Arrays.binarySearch(res, -s);
            if(id == 0){
                out.println(0);
                return;
            }
            if(-id-2 > 0){
                ans = Math.min(ans, Math.abs(res[-id-2]+s));
            }
            if(-id-1 < res.length){
                ans = Math.min(ans, Math.abs(res[-id-1]+s));
            }
        }
        out.println(ans);
    }

    public static void main(String[] args) throws Exception
    {
        long S = System.currentTimeMillis();
        is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
        out = new PrintWriter(System.out);
        
        solve();
        out.flush();
        long G = System.currentTimeMillis();
        tr(G-S+"ms");
    }


    
    private static boolean eof()
    {
        if(lenbuf == -1)return true;
        int lptr = ptrbuf;
        while(lptr < lenbuf)if(!isSpaceChar(inbuf[lptr++]))return false;
        
        try {
            is.mark(1000);
            while(true){
                int b = is.read();
                if(b == -1){
                    is.reset();
                    return true;
                }else if(!isSpaceChar(b)){
                    is.reset();
                    return false;
                }
            }
        } catch (IOException e) {
            return true;
        }
    }
    
    private static byte[] inbuf = new byte[1024];
    static int lenbuf = 0, ptrbuf = 0;
    
    private static 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 static boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
//  private static boolean isSpaceChar(int c) { return !(c >= 32 && c <= 126); }
    private static int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
    
    private static double nd() { return Double.parseDouble(ns()); }
    private static char nc() { return (char)skip(); }
    
    private static String ns()
    {
        int b = skip();
        StringBuilder sb = new StringBuilder();
        while(!(isSpaceChar(b))){
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    
    private static 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 static 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 static int[] na(int n)
    {
        int[] a = new int[n];
        for(int i = 0;i < n;i++)a[i] = ni();
        return a;
    }
    
    private static 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 static 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) { if(INPUT.length() != 0)System.out.println(Arrays.deepToString(o)); }

    private static int[] nsi(){
        char[] s = ns().toCharArray();
        int[] a = new int[s.length];
        for(int j = 0; j < s.length; j++){
           a[j] = s[j] - '0';
        }
        return a;
    }
}
0