Submission #4048981

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Source Code Expand

n,x=map(int,input().split())
bin_x=bin(x)[2:]
value=list(map(int,input().split()))
i=0
ans=0
zero_x=bin(x)[2:]
if x==0:
    print(0)
else:
    if len(bin_x)<n:
        for _ in range(n-len(bin_x)):
            zero_x+="0"
    while i<=n-1:
        if zero_x[i]=="1":
            ans+=value[i]
        i+=1
    print(ans)

Submission Info

Judge Result