some jumping for joy, others crying,

some jumping for joy, others crying = some my fellow students were jumping for joy, and other my fellow students were crying?

Context:
Googling Ourselves " What Physicians Can Learn from Online Rating Sites

I open the Google search page on my laptop, type in my name, and click "search." In the 0.22 second it takes for the 1540 results to appear, I have a flashback to my medical-student days, when exam results would be typed on white A4 paper and taped to a window adjacent to the main entrance of the medical school. It was a curious form of transparency, with every class member's results, whether fail, pass, or honors, on display for all to see. I remember my anxiety escalating to frantic heights as I pushed past my peers, some jumping for joy, others crying, my eyes scouring the list for my name. Surely passing the grueling examinations should have been enough? But no, we also had to endure this cruel social ritual to prove we had what it takes to be doctors.