結果

問題 No.182 新規性の虜
ユーザー amyuamyu
提出日時 2016-06-05 08:52:31
言語 Java21
(openjdk 21)
結果
AC  
実行時間 186 ms / 5,000 ms
コード長 4,179 bytes
コンパイル時間 3,209 ms
コンパイル使用メモリ 76,488 KB
実行使用メモリ 62,296 KB
最終ジャッジ日時 2023-08-27 11:31:59
合計ジャッジ時間 7,236 ms
ジャッジサーバーID
（参考情報） 		judge14 / judge11
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 41 ms
49,504 KB
testcase_01 AC 41 ms
49,512 KB
testcase_02 AC 42 ms
49,696 KB
testcase_03 AC 41 ms
49,368 KB
testcase_04 AC 41 ms
49,360 KB
testcase_05 AC 42 ms
49,556 KB
testcase_06 AC 42 ms
49,548 KB
testcase_07 AC 42 ms
49,288 KB
testcase_08 AC 155 ms
57,036 KB
testcase_09 AC 186 ms
61,932 KB
testcase_10 AC 166 ms
59,740 KB
testcase_11 AC 177 ms
59,944 KB
testcase_12 AC 114 ms
54,148 KB
testcase_13 AC 44 ms
49,288 KB
testcase_14 AC 44 ms
49,196 KB
testcase_15 AC 42 ms
49,244 KB
testcase_16 AC 43 ms
49,368 KB
testcase_17 AC 43 ms
49,460 KB
testcase_18 AC 134 ms
55,120 KB
testcase_19 AC 121 ms
55,200 KB
testcase_20 AC 108 ms
54,880 KB
testcase_21 AC 132 ms
55,636 KB
testcase_22 AC 112 ms
54,680 KB
testcase_23 AC 42 ms
49,328 KB
testcase_24 AC 158 ms
62,296 KB
testcase_25 AC 105 ms
53,028 KB
testcase_26 AC 85 ms
52,468 KB
testcase_27 AC 42 ms
49,284 KB
evil01.txt AC 181 ms
62,076 KB
evil02.txt AC 180 ms
62,568 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.util.*;
import java.io.*;

public class Main{
    static final Reader sc = new Reader();
    static final PrintWriter out = new PrintWriter(System.out,false);

    public static void main(String[] args) throws Exception {
    	int n = sc.nextInt();
        ArrayList<Point> list = new ArrayList<Point>();
        HashMap<Integer,Integer> map = new HashMap<Integer,Integer>();
        int count =0;
        for(int i=0;i<n;i++){
            int a = sc.nextInt();
            if(map.get(a)!=null){
                list.get(map.get(a)).y++;
            }
            else{
                map.put(a,count);
                Point p = new Point(a,1);
                list.add(p);
                count++;
            }
        }
        int ans = 0;
        for(int i=0;i<list.size();i++){
            if(list.get(i).y==1){
                ans++;
            }
        }
    	out.println(ans);
    	out.flush();
        sc.close();
        out.close();
    }

    static void trace(Object... o) { System.out.println(Arrays.deepToString(o));}
}

class Point{
    int x;
    int y;
    Point(int x,int y){
        this.x = x;
        this.y = y;
    }
}

class Reader {

    private final InputStream in;
    private final byte[] buf = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;

    public Reader() { this(System.in);}
    public Reader(InputStream source) { this.in = source;}

    private boolean hasNextByte() {
        if (ptr < buflen) return true;
        ptr = 0;
        try{
            buflen = in.read(buf);
        }catch (IOException e) {e.printStackTrace();}
        if (buflen <= 0) return false;
        return true;
    }

    private int readByte() { if (hasNextByte()) return buf[ptr++]; else return -1;}

    private boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}

    private void skip() { while(hasNextByte() && !isPrintableChar(buf[ptr])) ptr++;}

    public boolean hasNext() {skip(); return hasNextByte();}

    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while (isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }

    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        boolean minus = false;
        long num = readByte();

        if(num == '-'){
            num = 0;
            minus = true;
        }else if (num < '0' || '9' < num){
            throw new NumberFormatException();
        }else{
            num -= '0';
        }

        while(true){
            int b = readByte();
            if('0' <= b && b <= '9')
                num = num * 10 + (b - '0');
            else if(b == -1 || !isPrintableChar(b))
                return minus ? -num : num;
            else
                throw new NoSuchElementException();
        }
    }

    public int nextInt() {
        long num = nextLong();
        if (num < Integer.MIN_VALUE || Integer.MAX_VALUE < num)
            throw new NumberFormatException();
        return (int)num;
    }

    public double nextDouble() {
        return Double.parseDouble(next());
    }

    public char nextChar() {
        if (!hasNext()) throw new NoSuchElementException();
        return (char)readByte();
    }

    public String nextLine() {
        while (hasNextByte() && (buf[ptr] == '\n' || buf[ptr] == '\r')) ptr++;
        if (!hasNextByte()) throw new NoSuchElementException();

        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while (b != '\n' && b != '\r') {
            sb.appendCodePoint(b);
            b = readByte();
        }

        return sb.toString();
    }

    public int[] nextIntArray(int n) {
        int[] res = new int[n];
        for (int i=0; i<n; i++) res[i] = nextInt();
        return res;
    }

    public char[] nextCharArray(int n) {
        char[] res = new char[n];
        for (int i=0; i<n; i++) res[i] = nextChar();
        return res;
    }

    public void close() {try{ in.close();}catch(IOException e){ e.printStackTrace();}};
}
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