#251604 (Java21) No.674 n連勤

• 問題: No.674 n連勤
• ユーザー: ziita
• 提出日時: 2018-04-14 18:14:16
• 言語: Java21 (openjdk 21)
• 結果: AC
• 実行時間: 349 ms / 2,000 ms
• コード長: 5,341 bytes
• コンパイル時間: 2,720 ms
• コンパイル使用メモリ: 80,548 KB
• 実行使用メモリ: 63,240 KB
• 最終ジャッジ日時: 2023-09-09 05:25:13
• 合計ジャッジ時間: 6,702 ms
• ジャッジサーバーID （参考情報）: judge15 / judge14

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	42 ms; 49,804 KB
testcase_01	AC	43 ms; 49,732 KB
testcase_02	AC	42 ms; 49,816 KB
testcase_03	AC	44 ms; 49,668 KB
testcase_04	AC	44 ms; 49,564 KB
testcase_05	AC	44 ms; 49,752 KB
testcase_06	AC	45 ms; 49,524 KB
testcase_07	AC	44 ms; 49,612 KB
testcase_08	AC	43 ms; 49,620 KB
testcase_09	AC	43 ms; 47,552 KB
testcase_10	AC	42 ms; 49,852 KB
testcase_11	AC	138 ms; 55,364 KB
testcase_12	AC	152 ms; 56,400 KB
testcase_13	AC	263 ms; 56,124 KB
testcase_14	AC	260 ms; 56,344 KB
testcase_15	AC	259 ms; 56,152 KB
testcase_16	AC	341 ms; 63,240 KB
testcase_17	AC	346 ms; 59,636 KB
testcase_18	AC	349 ms; 61,236 KB
testcase_19	AC	267 ms; 57,960 KB

ソースコード

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;
    long inf = Long.MAX_VALUE;

    void solve(){
        long d = nl();
        int q = ni();
        long ans = 0;
        RangeQuery req = new RangeQuery();
        for(int i = 0; i < q; i++){
            long a = nl();
            long b = nl();
            ans = Math.max(ans, req.range(a, b));
            out.println(ans);
        }
    }

    class RangeQuery{
        TreeSet<Long> left = new TreeSet<>();
        TreeMap<Long, Long> map = new TreeMap<>(); 
        RangeQuery(){
            left.add(-100l);
            map.put(-100l, -100l);
            left.add(inf);
            map.put(inf, inf);
        }
        long insert(long a, long b){
            long ll = left.headSet(a+1, false).last();
            long lr = map.get(ll);
            boolean merge = false;
            if(ll<=a && lr>=a-1){
                map.remove(ll);
                left.remove(ll);
                a = ll;
                b = Math.max(lr, b);
                map.put(a, b);
                left.add(a);
                merge = true;
            }
            long rl = left.headSet(b+2, false).last();
            long rr = map.get(rl);
            if(rl<=b+1 && rl>=a){
                map.remove(rl);
                left.remove(rl);
                b = Math.max(rr, b);
                map.put(a, b);
                left.add(a);
                merge = true;
            }
            if(!merge){
                map.put(a,b);
                left.add(a);
            }
            ArrayList<Long> remove = new ArrayList<>();
            TreeSet<Long> tmpset = (TreeSet) left.tailSet(a-1, false);
            for(long j : tmpset){
                if(map.get(j)<=b){
                    if(j==a&&map.get(j)==b) continue;
                    remove.add(j);
                }
                else break;
            }
            for(long j : remove){
                left.remove(j);
                map.remove(j);
            }
            return a;
        }
        long range(long a, long b){
            long res = insert(a,b);
            return map.get(res)-res+1;
        }
    }


    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)); }
 
}