結果

問題 No.190 Dry Wet Moist
ユーザー yuya178yuya178
提出日時 2017-10-17 23:51:17
言語 Java21
(openjdk 21)
結果
AC  
実行時間 536 ms / 2,000 ms
コード長 5,436 bytes
コンパイル時間 2,436 ms
コンパイル使用メモリ 92,956 KB
実行使用メモリ 82,996 KB
最終ジャッジ日時 2024-11-18 08:18:10
合計ジャッジ時間 11,726 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
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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 104 ms
53,012 KB
testcase_01 AC 95 ms
53,304 KB
testcase_02 AC 92 ms
53,012 KB
testcase_03 AC 102 ms
53,056 KB
testcase_04 AC 103 ms
53,416 KB
testcase_05 AC 104 ms
53,224 KB
testcase_06 AC 101 ms
52,892 KB
testcase_07 AC 114 ms
53,260 KB
testcase_08 AC 108 ms
52,992 KB
testcase_09 AC 97 ms
53,044 KB
testcase_10 AC 94 ms
53,260 KB
testcase_11 AC 95 ms
53,220 KB
testcase_12 AC 326 ms
62,076 KB
testcase_13 AC 408 ms
65,020 KB
testcase_14 AC 314 ms
62,532 KB
testcase_15 AC 392 ms
65,080 KB
testcase_16 AC 403 ms
67,096 KB
testcase_17 AC 201 ms
56,100 KB
testcase_18 AC 295 ms
62,180 KB
testcase_19 AC 414 ms
67,392 KB
testcase_20 AC 344 ms
64,608 KB
testcase_21 AC 181 ms
56,956 KB
testcase_22 AC 459 ms
66,972 KB
testcase_23 AC 536 ms
82,996 KB
testcase_24 AC 466 ms
67,188 KB
testcase_25 AC 104 ms
53,356 KB
testcase_26 AC 94 ms
53,264 KB
testcase_27 AC 435 ms
65,684 KB
testcase_28 AC 269 ms
59,564 KB
testcase_29 AC 304 ms
62,216 KB
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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 long[][] a;
    static int min = Integer.MAX_VALUE;
    static int townsize;
    static int[] town;

    static void solve()
    {
        int n = ni()*2;
        int[] a = new int[n];
        for(int i = 0; i < n; i++){
            a[i] = ni();
        }
        Arrays.sort(a);
        int[] ans = new int[3];
        int j = n-1;
        for(int i = 0; i < n; i++){
            while(a[i] + a[j] >= 0 && i < j) j--;
            if(i < j){
                ans[0]++;
                j--;
            }
        }
        j = 0;
        for(int i = n-1; i >= 0; i--){
            while(a[i] + a[j] <= 0 && i > j) j++;
            if(i > j){
                ans[1]++;
                j++;
            }
        }

        HashMap<Integer, Integer> map = new HashMap<>();
        Set<Integer> set = new HashSet<>();
        for (int i = 0; i < n; i++) {
            int v = a[i];
            map.merge(v, 1, (x, y) -> x + y);
            set.add(v);
        }

        for(int i : set){
            if(i > 0) continue;
            if(i == 0){
                ans[2] += map.get(0)/2;
            }
            if(i < 0){
                ans[2] += Math.min(map.getOrDefault(i,0),map.getOrDefault(-i,0));
            }
        }


        out.println(ans[0]+" "+ans[1]+" "+ans[2]);
    
    }
    
    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;
    }
}
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