How to allocate five teams in a single-cycle basketball game?

What is the schedule? Single loop is very simple. The five teams draw lots 1-5 respectively, and set 0 as bye. Play 1 round every day, 2 rounds, ***5 rounds, 10 rounds, and end the whole game in 5 days. \x0d\ The schedule is as follows: \x0d\ Day 1 day:1-4,2-3,0-5 (bye-bye) \x0d\ Day 2: 5-3,1-2,0-4 (.