Write a function that returns the similarity score for two sequences. The similarity score for two sequences is calculated as follows:

similarity_score = (string length - hamming_distance) / string length

where hamming distance is a position-by-position comparison that counts the number of positions in which the corresponding characters in the string are different. Two strings with a small Hamming distance are more similar than two strings with a larger Hamming distance.

Example: first string = ACCT second string = ACCG

A C C T

| | | *

A C C G

In this example, there are 3 matching characters and 1 mismatch, so:

hamming_distance = 1 . And the similarity score for the two strings on this example would be, similarity_score = (4-1)/4 = 3/4 = 0.75

Your function MUST be named simScore

Your function should take two parameters in this order:

a string parameter for the first sequence

a string parameter for the second sequence.

Your function should return the similarity score as a double.

Your function should not print anything.

Edge Cases:

lengths of sequences are different return 0

either sequence is an empty string return 0

Examples:

Arguments and their expected return values for the simScore

sequence1	sequence2	Similarity score
ATGC	ATGA	0.75
CCDCCD	CCDCCD	1
ATG	GAT	0
ACCDT	ACCT	0
CGT	DGGTA	0

For example:

Test	Result
//2/3 match cout << simScore("AAG", "AAC");	0.666667

C++ Only