Don't Settle for the First! How Many GitHub Copilot Solutions Should You Check?

GitHub Copilot is a generative artificial intelligence (GenAI) tool designed to support software developers when writing source code. As such, GitHub Copilot provides a feature of generating up to ten solutions to a given task, enabling developers to choose a suitable option. With this study, we provide recommendations on how to reasonably balance finding and checking solutions. We evaluate the multi-suggestion feature using 2025 LeetCode coding problems for which we generated a total of 17 048 solutions using GitHub Copilot in Python. The recommended approach varies by coding problem characteristics. However, generally, it is enough to check only a few solutions to find a correct one (for easy coding problems) or be certain that there is none (for more difficult problems).