Question: C++ #include | using namespace std; Mix two strings by alternating characters from them. If one string runs out before the other, just pick from

C++

C++ #include | using namespace std; Mix two strings by alternating characters

#include | using namespace std; Mix two strings by alternating characters from them. If one string runs out before the other, just pick from the longer one. For example, mix("Fred", "kilma") is "Fvirieldma". Use recursion. Do not use loops. Hint: str.substr 1) is the substring of str from position 1 to the end. string mix(string a, string b)

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