結果

問題 No.3085 Easy Problems
ユーザー tenten
提出日時 2025-04-07 14:30:34
言語 Java
(openjdk 23)
結果
AC  
実行時間 629 ms / 2,000 ms
コード長 4,102 bytes
コンパイル時間 3,535 ms
コンパイル使用メモリ 84,144 KB
実行使用メモリ 85,492 KB
最終ジャッジ日時 2025-04-07 14:31:04
合計ジャッジ時間 27,702 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 31
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.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        FastScanner sc = new FastScanner();
        int n = sc.nextInt();
        PriorityQueue<Query> queue = new PriorityQueue<>();
        for (int i = 0; i < n; i++) {
            queue.add(new Query(0, sc.nextInt(), sc.nextInt() - 1, 0));
        }
        int q = sc.nextInt();
        for (int i = 0; i < q; i++) {
            queue.add(new Query(1, sc.nextInt(), sc.nextInt() - 1, i));
        }
        int[] ans = new int[q];
        int total = 0;
        int[] counts = new int[100000];
        while (queue.size() > 0) {
            Query x = queue.poll();
            if (x.type == 0) {
                total++;
                counts[x.color]++;
            } else {
                ans[x.idx] = total - counts[x.color];
            }
        }
        System.out.println(Arrays.stream(ans).mapToObj(String::valueOf).collect(Collectors.joining("\n")));
    }
    
    static class Query implements Comparable<Query> {
        int type;
        int value;
        int color;
        int idx;
        
        public Query(int type, int value, int color, int idx) {
            this.type = type;
            this.value = value;
            this.color = color;
            this.idx = idx;
        }
        
        public int compareTo(Query another) {
            return value == another.value ? type - another.type : value - another.value;
        }
    }
}

class FastScanner {
    private DataInputStream din;
    private byte[] buffer;
    private int bufferPointer, bytesRead;
    private static final int BUFFER_SIZE = 1 << 16; // 65,536 バイト

    public FastScanner() {
        din = new DataInputStream(System.in);
        buffer = new byte[BUFFER_SIZE];
        bufferPointer = bytesRead = 0;
    }

    private byte read() {
        try {
            if (bufferPointer == bytesRead) {
                bytesRead = din.read(buffer, 0, BUFFER_SIZE);
                if (bytesRead == -1) return -1;
                bufferPointer = 0;
            }
            return buffer[bufferPointer++];
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public String next() {
        byte b = read();
        // 空白文字を読み飛ばす
        while (isSpaceChar(b)) {
            b = read();
        }
        StringBuilder sb = new StringBuilder();
        while (!isSpaceChar(b)) {
            sb.append((char) b);
            b = read();
        }
        return sb.toString();
    }

    public int nextInt() {
        int ret = 0;
        byte c = read();
        while (isSpaceChar(c)) c = read();
        boolean neg = (c == '-');
        if (neg) c = read();
        do {
            ret = ret * 10 + c - '0';
            c = read();
        } while (!isSpaceChar(c));
        return neg ? -ret : ret;
    }

    public long nextLong() {
        long ret = 0;
        byte c = read();
        while (isSpaceChar(c)) c = read();
        boolean neg = (c == '-');
        if (neg) c = read();
        do {
            ret = ret * 10L + c - '0';
            c = read();
        } while (!isSpaceChar(c));
        return neg ? -ret : ret;
    }

    public double nextDouble() {
        double ret = 0, div = 1;
        byte c = read();
        while (isSpaceChar(c)) c = read();
        boolean neg = (c == '-');
        if (neg) c = read();
        do {
            ret = ret * 10 + c - '0';
            c = read();
        } while (!isSpaceChar(c) && c != '.');
        if (c == '.') {
            while (!isSpaceChar(c = read())) {
                ret += (c - '0') / (div *= 10);
            }
        }
        return neg ? -ret : ret;
    }

    private boolean isSpaceChar(byte c) {
        return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
    }

    public void close() {
        try {
            if (din != null) din.close();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}
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