Submission #449552

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Source Code Expand

import java.io.IOException;
import java.io.InputStream;
import java.util.*;

public class Main {




    void work() {
        FastScanner sc = new FastScanner(System.in);
        int n = sc.nextInt();
        int[]  a = new int[n];


        for (int i = 0; i < n; i++)
            a[i] = sc.nextInt();

        Arrays.sort(a);

        Set<Integer> set = new HashSet<Integer>();

        for (int i = 0; i < n; i++) {
            int j = a[i];
            while (j % 2 == 0) j = j/2;
            if (!set.contains(j))
                set.add(j);
        }

        System.out.println(set.size());

    }


    public static void main(String[] args) {
        new Main().work();
    }


    static class FastScanner {
        private InputStream inputStream;
        private byte[] buf = new byte[1024];
        private int curChar;
        private int numChar;



        public FastScanner(InputStream inputStream) {
            this.inputStream = inputStream;
        }


        public int next() {
            if (numChar == -1)
                throw new InputMismatchException();
            if (curChar >= numChar) {
                curChar = 0;
                try {
                    numChar = inputStream.read(buf);
                } catch (IOException e) {
                    throw new InputMismatchException();
                }
                if (numChar <=0)
                    return -1;
            }
            return buf[curChar++];
        }

        public int nextInt() {
            int ch = next();
            while (isSpace(ch))
                ch = next();

            int pn = 1;
            if (ch == '-') {
                pn = -1;
                ch = next();
            }

            int num = 0;

            do {
                if ( ch < '0' || ch > '9')
                    throw new InputMismatchException();
                num = num*10 + ch - '0';
                ch = next();
            } while (!isSpace(ch));
            return pn * num;
        }

        public boolean isSpace(int ch) {
            return ch == ' ' || ch == '\n' || ch == '\r' || ch == '\t' || ch == -1;
        }
    }
}

Submission Info

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