Submission #22664102

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Source Code Expand

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {
    public static void main(String[] args) {
        FastReader sc = new FastReader();
        long n = sc.nextLong();
        long b = power(n);
        long a = n/b;
        long c = n%b;
//        System.out.println(a + " "+b+ " "+ c+" "+log2(b));
        System.out.println(a+log2(b)+c);
    }
    public static long log2(long N) {
        return (int)(Math.log(N) / Math.log(2));
    }

    static long power(long n) {
        long p = 1;
        if (n > 0 && (n & (n - 1)) == 0)
            return n;

        while (p < n)
            p <<= 1;

        return p>>1;
    }

    //Fast Reader Class
    static class FastReader {
        BufferedReader reader;
        StringTokenizer mStringTokenizer;

        public FastReader() {
            reader = new BufferedReader(new
                    InputStreamReader(System.in));
        }

        String next() {
            while (mStringTokenizer == null || !mStringTokenizer.hasMoreElements()) {
                try {
                    mStringTokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return mStringTokenizer.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

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

        String nextLine() {
            String str = "";
            try {
                str = reader.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
}

Submission Info

Judge Result