<ul><li>Given a string s, an integer t, and an array nums of size 26 representing transformations on s.</li><li>Each character in s is replaced by the next nums[s[i] - 'a'] consecutive characters, wrapping around if needed.</li><li>Return the length of the resulting string after t transformations, modulo 10^9 + 7.</li><li>Implementing matrix multiplication efficiently handles large values of t.</li><li>Strategy involves representing transformations as matrices, using matrix exponentiation, and calculating dot products.</li><li>Example transformations and their impact on the length of the string are illustrated.</li><li>Functions in PHP for matrix operations like matrix multiplication and exponentiation are provided.</li><li>Matrix Construction builds a matrix indicating characters generated during transformations.</li><li>Matrix Exponentiation efficiently handles large exponents using exponentiation by squaring.</li><li>Contribution Calculation computes character contributions to the final length using precomputed matrices.</li></ul>

3337. Total Characters in String After Transformations II

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