When should a programmer develop an algorithm to solve a problem?

Developing an algorithm before writing a program is a crucial step in the programming process. An algorithm serves as a blueprint that outlines the steps needed to solve a specific problem. By focusing on the algorithm first, a programmer can systematically break down the problem into smaller, manageable components, which allows for clearer logic and structure in the subsequent code.

This upfront planning helps in identifying potential challenges and ensures that the programmer understands the sequence of operations needed to achieve the desired outcome. Moreover, having a well-defined algorithm can streamline the coding process, making the actual implementation more efficient and reducing the likelihood of errors.

In contrast, writing a program without a predefined algorithm may lead to confusion and complications, as programmers might miss essential steps or find themselves needing to backtrack frequently. Testing and refinement should be based on a sound algorithm rather than developing one during those phases, which are meant to verify and validate the existing implementation. Finally, only considering algorithm development when there is time undermines the importance of the planning phase in programming, as a rushed or unplanned approach can result in incomplete or ineffective solutions.