1639. Number of Ways to Form a Target String Given a Dictionary

You are given a list of strings of the same length words and a string target. Your task is to form target using the given words under the following rules: - target should be formed from left to right. - To form the ith character (0-indexed) of target, you can choose the kth character of the jth string in words if target[i] = words[j][k]. - Once you use the kth character of the jth string of wo