21 hours ago

Sarthak • 10

Hyderabad

Question: Cryptarithm Solver

Problem Statement: A cryptarithm is a mathematical puzzle where the goal is to find the correspondence between letters and digits such that the given arithmetic equation consisting of letters holds true.

Given a cryptarithm as an array of strings crypt, count the number of its valid solutions.

The solution is valid if each letter represents a different digit, and the leading digit of any multi-digit number is not zero.

crypt has the following structure: [word1, word2, word3], which stands for the word1 + word2 = word3 cryptarithm.