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func b(i, t,a,c){a=1;for(c=length(i);c>0;c--){t+=substr(i,c,1)=="1"?a:0;a*=2}return t}{printf "%d",b($0)}

Success #stdin #stdout 0s 5896KB

stdin

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1000111000100000110000001111001010111110011110011110000010011111110101100111000011010111010011101111

stdout

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703783491088971077313519157248

https://ideone.com/Lyef5z

language:

AWK (gawk 4.2.1)

created:

visibility:

public

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