I’m unable to understand that how the recursion tree is working for this solution, when we are iterating over the mapped strings to a number, how is the recursive call working after putting the i-th character in the output array ? (code: https://ide.codingblocks.com/s/139502)
Phone Keypad Recursion Problem
The k loop is helping to iterate over corresponding string, once we put the character in output array, it moves to next number and does the same for that number
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