Submission #2860012

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Source Code Expand

import java.util.Scanner;

class Main{
	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int bits=sc.nextInt();
		int prod=sc.nextInt();
		int[] syouhin_pp=new int[bits];
		int[] syouhin_kati=new int[bits];

		for(int i=bits-1; i>=0; i--) {
			syouhin_pp[i]=prod%2;
			prod/=2;
		}
		for(int i=bits-1; i>=0; i--) {
			syouhin_kati[i]=sc.nextInt();
		}
		int value=0;

		for(int i=0; i<bits; i++) {
			value+=syouhin_pp[i]*syouhin_kati[i];
		}
		System.out.println(value);
	}
}

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