Generate a Valid Expression from String Numbers to Target Value

In this article, we will explore how to generate a valid mathematical expression from a string of digits that evaluates to a given target number using Java. This type of problem is common in coding interviews and algorithm challenges, as it involves recursive thinking, backtracking, and careful handling of operator precedence. We will walk through …

Jun 2, 2025 - 22:30

In this article, we will explore how to generate a valid mathematical expression from a string of digits that evaluates to a given target number using Java. This type of problem is common in coding interviews and algorithm challenges, as it involves recursive thinking, backtracking, and careful handling of operator precedence. We will walk through …