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

Developing an algorithm before writing a program to solve a problem is a fundamental step in the programming process. This approach allows the programmer to outline the logic and structure needed to effectively address the issue at hand. An algorithm serves as a blueprint, detailing each step that needs to be completed in order to reach the desired outcome.

By preparing an algorithm first, the programmer can better understand the requirements and complexities of the problem. This leads to more organized and efficient coding, reduces the likelihood of errors, and aids in debugging efforts later on. The process of algorithm development encourages critical thinking and can clarify the programmer's goals, making it easier to translate the algorithm into actual code.

In contrast, developing an algorithm after writing the program, during testing, or before analyzing the problem would be less effective since it could lead to a lack of clarity and direction in the programming process.