Submission #1228102

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Source Code Expand

#include<iostream>
using namespace std;
#include<vector>

int main(){
	int n,x;
	cin >> n>>x;
	vector<int> a(n);
	for(int i = 0;i<n;i++){
		cin>>a[i];
	}
	
	vector<int> nsn;
	
	while(x>0){
		nsn.push_back(x%2);
		x=x/2;
	}
	
	int sum=0;
	
	/*
	for(int i = 0;i<nsn.size();i++){
		cout<<nsn[i];
	}
	*/
	
	while(n!=nsn.size()){
		nsn.push_back(0);
	}
	
	for(int i = nsn.size();i>-1;i--){
		if(nsn[i])sum+=a[i];
	}
	
	/*
	if(b/n>=1){
		for(int i = 0;i<n;i++){
			if((b/((n-i))>=1))sum+=a[i];
		}
	}else{
		for(int i = 1;i<n;i++){
			if((b/((n-i)))>=1)sum+=a[i];
		}
	}
	*/
	
	cout << sum << endl;
	
	return 0;
}

Submission Info

Judge Result