1  program bubblesort.alpha {
 2      transition bubble_sort(xs: [u32; 8]) -> [u32; 8] {
 3          for i: u8 in 0u8..7u8 {
 4              for j: u8 in 0u8..7u8-i {
 5                  // Move the smaller elements forward
 6                  if xs[j+1u8] < xs[j] {
 7                      let swap: u32 = xs[j];
 8                      // let swap = xs[j];
 9                      xs[j] = xs[j+1u8];
10                      xs[j+1u8] = swap;
11                  }
12              }
13          }
14          return xs;
15      }
16  
17      // The constructor is configured to prevent upgrades.
18      @noupgrade
19      async constructor() {}
20  }