You Do Need power plug adapter while traveling from Mauritius to Uruguay.

Here is Why You Need An Adapter

The outlet and plug type used in Uruguay are C, F and L and in Mauritius are C and G. This is how they look like.

Mauritius

In Mauritius, outlets of type C and G are in use.

Type C

Type G

Uruguay

In Uruguay, outlets of type C, F and L are in use.

Type C

Type F

Type L