Hexadecimal Hijinks
I've invented a new hash algorithm, Insecure Hash Algorithm (IHA-1). It takes a bit string of any length as input, and produces a 60 bit output. I want to print the output as a string of hexadecimal digits. How many hexadecimal digits are required to print any output?
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The answer is 15.
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1 solution
To convert binary to hexadecimal, first divide the whole binary digit into groups of 4 from left. Each binary digit is assigned with a hexadecimal digit (0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F). For eg , 0=0000, 1=0001, 2=0010, ........9=1001, A=1010,.........F=1111. Now it is given that the string is of 60 bit i.e it has 60 binary digits. For maximum value put it 11111111111111.....(60 times). Divide it into 4 groups. So its corresponding hexadecimal digit is FFFFFFF............(15 times). So maximum number of digits is 15