結果

問題 No.789 範囲の合計
ユーザー OlandOland
提出日時 2019-05-24 12:34:24
言語 Java21
(openjdk 21)
結果
AC  
実行時間 652 ms / 1,000 ms
コード長 5,434 bytes
コンパイル時間 2,585 ms
コンパイル使用メモリ 82,796 KB
実行使用メモリ 74,952 KB
最終ジャッジ日時 2023-10-17 11:54:19
合計ジャッジ時間 11,323 ms
ジャッジサーバーID
（参考情報） 		judge14 / judge13
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 68 ms
54,432 KB
testcase_01 AC 69 ms
53,872 KB
testcase_02 AC 649 ms
73,792 KB
testcase_03 AC 402 ms
65,536 KB
testcase_04 AC 652 ms
71,780 KB
testcase_05 AC 557 ms
74,952 KB
testcase_06 AC 597 ms
73,596 KB
testcase_07 AC 357 ms
62,652 KB
testcase_08 AC 477 ms
69,216 KB
testcase_09 AC 436 ms
67,624 KB
testcase_10 AC 583 ms
73,588 KB
testcase_11 AC 588 ms
73,492 KB
testcase_12 AC 602 ms
73,268 KB
testcase_13 AC 68 ms
54,424 KB
testcase_14 AC 67 ms
53,872 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.io.*;
import java.util.*;
import java.util.Map.Entry;
import java.util.stream.Collectors;

@SuppressWarnings("unused")
public class Main {
	
	//final boolean isDebug = true;
	final boolean isDebug = false;
	String fileName = "input.txt";
	FastScanner sc;
	PrintWriter out;
	final int MOD = (int)1e9+7;
	//final int INF = Integer.MAX_VALUE / 2;
	final long INF = Long.MAX_VALUE / 2;
	
	void solve() throws Exception{
		int n = sc.nextInt();
		ArrayList<Integer> list = new ArrayList<>();
		int[] q = new int[n], x = new int[n], y = new int[n];
		for(int i = 0; i < n; i++){
			q[i] = sc.nextInt(); x[i] = sc.nextInt(); y[i] = sc.nextInt();
			list.add(x[i]); list.add(y[i]);
		}
		
		ArrayList<Integer> su = compress(list);
		HashMap<Integer, Integer> map = new HashMap<>();
		for(int i = 0; i < su.size(); i++) map.put(su.get(i), i+1);
		
		BinaryIndexedTree bit = new BinaryIndexedTree(su.size());
		long ans = 0;
		for(int i = 0; i < n; i++){
			if(q[i] == 0){
				bit.add(map.get(x[i]), y[i]);
			}else{
				ans += bit.getSum(map.get(x[i]), map.get(y[i]));
			}
		}
		System.out.println(ans);
 	}
	
	ArrayList<Integer> compress(ArrayList<Integer> list){
		ArrayList<Integer> sortedUniqueList = new ArrayList<>(list.stream().sorted().distinct().collect(Collectors.toList()));
		return sortedUniqueList;
	}
	
	/* end solve */
	
	/* main */
	public static void main(String[] args) throws Exception {
		new Main().m();
	}
	
	void m() throws Exception {
		long S = System.currentTimeMillis();
		sc = (isDebug) ? new FastScanner(new FileInputStream(fileName)) : new FastScanner(System.in);
		out = new PrintWriter(System.out);
		solve();
		out.flush();
		long G = System.currentTimeMillis();
		if(isDebug){
			System.out.println("---Debug---");
			System.out.printf("%8d ms\n", (G-S));
		}
	}
	/* end main */
}
/* end Main */

/*
 * BIT(BinaryIndexedTree)
 * 1-indexed、範囲指定するときは[a,b]
 * RSQ(要素加算、区間和クエリ)による実装
 */
class BinaryIndexedTree{
	int n;
	int[] node;
	
	/* 初期値は0 */
	public BinaryIndexedTree(int n){
		this.n = n;
		node = new int[n+1];
	}
	
	/* 1-indexed */
	public void add(int x, int val){
		for(int i = x; i <= n; i += (i & -i)){
			node[i] += val;
		}
	}
	
	/* 
	 * [1,a], 1-indexed
	 * sum(0) == 0
	 */
	public int getSum(int a){
		int res = 0;
		for(int i = a; i > 0; i -= (i & -i)){
			res += node[i];
		}
		return res;
	}
	
	/* [a,b], 1-indexed */
	public int getSum(int a, int b){
		return getSum(b) - getSum(a-1);
	}
	
	/*
	//[a,b), 1-indexed
	public int sum(int a, int b){
		return sum(b-1) - sum(a-1);
	}
	*/
	
	/*
	 * 小さいほうからk番目の値を二分探索で求める
	 * 1-indexed
	 */
	public int getKth(int k){
		if(k <= 0) return 0;
		int res = 0;
		int N = 1; while(N < node.length) N *= 2;
		for(int i = N / 2; i > 0; i /= 2){
			if(res + i < node.length && node[res + i] < k){
				k -= node[res + i];
				res += i;
			}
		}
		return res+1;
	}
}

class FastScanner {
    private InputStream in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    public FastScanner(InputStream in) {
		this.in = in;
	}
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() {
    	if (hasNextByte()) return buffer[ptr++];
    	else return -1;
    }
    private static boolean isPrintableChar(int c){
    	return 33 <= c && c <= 126;
    }
    public boolean hasNext() {
    	while(hasNextByte() && !isPrintableChar(buffer[ptr]))
    		ptr++; 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 String nextLine() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(b != 10) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDouble() {
    	return Double.parseDouble(next());
    }
}
0