  # Python | Merge two strings with suffix and prefix

Python Methods and Functions | String Variables

You are given two lines A and B, and these lines contain lowercase letters. The challenge is to specify the length of the merged strings. For example, if A — "Abcde", and B — "Cdefg" then concatenation of the two strings results in "abcdefg". The merge operation is performed such that the characters to be appended are suffix A and prefix B.
Before merging, you are allowed to perform ONE of the following operations:

1. Backward Line A
2. Backward Line B

Examples :

`  Input:  A = "ababc" B = "bcabc"  Output:  Length is 8 the suffix of string A ie "bc" and prefix of B ie "bc" is the same so the merged string will be "ababcabc" and length is 8.  Input:  A = "cdefg" B = "abhgf"  Output:  Length is 8 the suffix of string A ie "fg" and prefix of reversed B ie "fg" is the same so the merged string will be "cdefghba" and length is 8  Input:  A = "wxyz" B = "zyxw"  Output:  Length is 4 `

Below is the Python code implementation of the above approach.

` `

` # function to find length # concatenated string   def mergedstring (x, y) :   k = len (y) for i in range ( len (x)):   if x [i:] = = y [: k]: break else : k = k - 1    # uncomment the following statement # know what a concatenated string is # print (a + b [k:]) return len (a + b [k:])    # function to find the minimum length # among the concatenated string def merger (a, b): # reverse b b1 = b [:: - 1 ]    # function call to determine length # lines without backlines & # 39; B & # 39; r1 = mergedstring (a, b)    # function call to determine length # lines by reversing line "B" r2 = mergedstring (a, b1)   # compare between lengths if r1 & gt; r2: print ( "Length is" , r2) else : print ( "Length is" , r1)   # driver code a = "abcbc" b = "bcabc"   merger (a, b) `

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Exit :

` Length is 8 `