結果
問題 | No.1742 Binary Indexed Train |
ユーザー |
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提出日時 | 2021-11-15 10:19:51 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 393 ms / 3,000 ms |
コード長 | 1,869 bytes |
コンパイル時間 | 2,500 ms |
コンパイル使用メモリ | 77,860 KB |
実行使用メモリ | 48,592 KB |
最終ジャッジ日時 | 2024-12-14 07:47:13 |
合計ジャッジ時間 | 15,206 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 32 |
ソースコード
import java.util.*;import java.io.*;public class Main {public static void main(String[] args) throws Exception {Scanner sc = new Scanner();int n = sc.nextInt();int q = sc.nextInt();StringBuilder sb = new StringBuilder();for (int i = 0; i < q; i++) {sb.append(getCount(sc.nextLong(), sc.nextLong())).append("\n");}System.out.print(sb);}static int getCount(long start, long end) {long mid = getMid(start, end);return getPop(mid - start) + getPop(end - mid);}static long getMid(long start, long end) {long ans = 0;for (int i = 60; i >= 0; i--) {if ((end & (1L << i)) == 0) {continue;}ans += (1L << i);if ((start & (1L << i)) == 0) {break;}}return ans;}static int getPop(long x) {long pop = 0;while (x > 0) {pop += x % 2;x >>= 1;}return (int)pop;}}class Scanner {BufferedReader br = new BufferedReader(new InputStreamReader(System.in));StringTokenizer st = new StringTokenizer("");public Scanner() throws Exception {}public int nextInt() throws Exception {return Integer.parseInt(next());}public long nextLong() throws Exception {return Long.parseLong(next());}public double nextDouble() throws Exception {return Double.parseDouble(next());}public String nextLine() throws Exception {return br.readLine();}public String next() throws Exception {if (!st.hasMoreTokens()) {st = new StringTokenizer(br.readLine());}return st.nextToken();}}