13 lines
439 B
Plaintext
13 lines
439 B
Plaintext
lst := [0, 1, 2, 4, 6, 7, 8, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
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25, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39]:
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r1,r2:= lst[1],lst[1]:
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for i from 2 to numelems(lst) do
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if lst[i] - lst[i-1] = 1 then #consecutive
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r2 := lst[i]:
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else #break
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printf(piecewise(r2-r1=1, "%d,%d,", r2-r1>1,"%d-%d,", "%d,"), r1, r2):
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r1,r2:= lst[i],lst[i]:
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fi:
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od:
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printf(piecewise(r2-r1=1, "%d,%d", r2-r1>1,"%d-%d", "%d"), r1, r2):
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