problemSolving/Merge Strings Alternately.py at master · praveenr-CodeCrafter/problemSolving · GitHub

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# Merge Strings Alternately

# You are given two strings word1 and word2. Merge the strings by adding letters in alternating order, starting with word1. If a string is longer than the other, append the additional letters onto the end of the merged string.
# Return the merged string.

# Example 1:
# Input: word1 = "abc", word2 = "pqr"
# Output: "apbqcr"
# Explanation: The merged string will be merged as so:
# word1:  a   b   c
# word2:    p   q   r
# merged: a p b q c r

# Example 2:
# Input: word1 = "ab", word2 = "pqrs"
# Output: "apbqrs"
# Explanation: Notice that as word2 is longer, "rs" is appended to the end.
# word1:  a   b
# word2:    p   q   r   s
# merged: a p b q   r

# Example 3:
# Input: word1 = "abcd", word2 = "pq"
# Output: "apbqcd"
# Explanation: Notice that as word1 is longer, "cd" is appended to the end.
# word1:  a   b   c   d
# word2:    p   q
# merged: a p b q c   d

# Answer

def mergeAlternately(self, word1, word2):
    res = []
    max_len = max(len(word1), len(word2))
    for i in range(max_len):
        if i < len(word1):
            res.append(word1[i])
        if i < len(word2):
            res.append(word2[i])
    return "".join(res)

word1 = "abcyjt"
word2 = "pqr"
print(sum(word1, word2))