Get a list, sorted in increasing order by the last element in each tuple from a given list of non-empty tuples

Question

Write a program to get a list, sorted in increasing order by the last element 
 in each tuple from a given list of non-empty tuples. 
 
 Input: [(1, 3), (3, 2), (2, 1)] 
 Output: [(2, 1), (3, 2), (1, 3)]

Stefan Helzle · Accepted Answer

Where do you guys get these assignments from? What is your solution? 
 As it is a bit difficult to create list of lists in Appian, I use maps to define the tuples. 
 a!localVariables(
 local!tuples: {
 a!map(a: 1, b: 3),
 a!map(a: 3, b: 2),
 a!map(a: 2, b: 1),
 },
 todatasubset(
 a!forEach(
 items: local!tuples,
 expression: a!map(
 tuple: fv!item,
 sort: fv!item.b
 )
 ),
 a!pagingInfo(
 startIndex: 1,
 batchSize: 1000,
 sort: a!sortInfo(
 field: "sort",
 ascending: true
 )
 )
 ).data.tuple
)

Get a list, sorted in increasing order by the last element in each tuple from a given list of non-empty tuples

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