Submission #7624167

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
int a[10000],b[10000],c[10000];
int main(){
	int s=0;
	long long p,i,j,n,m,k=1;
	cin>>m>>n;
	p=n;
	for(i=1;i<=m;i++)cin>>b[i];
	for(i=0;p>0;i++){
		a[i]=p%2;
		p=p/2;
//		cout<<a[i]<<" ";
	}
//	cout<<endl;
/*	for(i=1;i<=m;i++){
		cout<<a[i];
	}	
	cout<<endl;*/
	for(i--;i>=0;i--){
		c[k]=a[i];k++;
	}
/*	for(i=1;i<=m;i++){
		cout<<c[i]<<" ";
	}	
	cout<<endl;*/
	for(i=1;i<=m;i++){
		if(c[i]==1)s=s+b[i];
	}
	cout<<s<<endl;

}

Submission Info

Judge Result