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Approach: Split the string to get an array of four strings i.e. A, B, C, D. If any one of them contains ?, then for each position check whether the required number and given number match or not (excluding the ? position). If they match, then return the missing digit in the given number (position of ? in given number).
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This Pull request resolves: #168
Approach:
Split the string to get an array of four strings i.e. A, B, C, D.
If any one of them contains ?, then for each position check whether the required number and given number match or not (excluding the ? position).
If they match, then return the missing digit in the given number (position of ? in given number).
Output
