These exercises demonstrate the content of the ByTheMark service. These are meant for private individuals for learning data structures and algorithms. If you want to try out more content, you can register to the ByTheMark Personal free of charge.
Select the min (in lines 2 and 5) by clicking on the table or in the bar graph visualization. After the minimum is selected, it can be swapped with a[i] (in line 6) by pressing the swap button.