Kata

A format for expressing an ordered list of integers is to use a comma separated list of either

• individual integers
• or a range of integers denoted by the starting integer separated from the end integer in the range by a dash, '-'. The range includes all integers in the interval including both endpoints. It is not considered a range unless it spans at least 3 numbers. For example "12,13,15-17"

Complete the solution so that it takes a list of integers in increasing order and returns a correctly formatted string in the range format.

Example:

solution([-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20]);
// returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

solution([-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20])
# returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

solution([-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20])
# returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

solution([-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20])
# returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

Solution.rangeExtraction(new int[] {-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20})
# returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

RangeExtraction.Extract(new[] {-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20});
# returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

RangeExtraction.Extract({-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20});
# returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

range_extraction({-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20});
// returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

range_extraction((const []){-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20}, 23);
/* returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20" */

nums:  dd  -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20

mov rdi, nums
mov rsi, 20
call range_extraction
; RAX <- `-10--8,-6,-3-1,3-5,7-11,14,15,17-20\0`

rangeextraction([-10 -9 -8 -6 -3 -2 -1 0 1 3 4 5 7 8 9 10 11 14 15 17 18 19 20])
# returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

solution(List(-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20))
// "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

(solution '(-10 -9 -8 -6 -3 -2 -1 0 1 3 4 5 7 8 9 10 11 14 15 17 18 19 20))
; returns "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

solution([-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 14, 15, 17, 18, 19, 20])
// returns '-10--8,-6,-3-1,3-5,7-11,14,15,17-20'

        Rangeextraction
        xs = [-10, -9, -8, -6, -3, -2, -1, 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 
             14, 15, 17, 18, 19, 20]
        res = "-10--8,-6,-3-1,3-5,7-11,14,15,17-20"

Courtesy of rosettacode.org