Lena was working on a small helper for the platform's achievement system to identify which two activity logs together reached a specific reward threshold. For instance, if a developer earned points like 2, 7, 11, and 15, and the goal was exactly 9, the function should correctly identify the items at the first and second positions. Eva reviewed the initial draft and suggested a smarter way to find these pairs to keep the dashboard feeling snappy as more data is added. This utility will now be a core part of how the team tracks combined progress toward their monthly milestones.