How to resolve the algorithm Range expansion step by step in the Yabasic programming language

Published on 12 May 2024 09:40 PM
#Yabasic

How to resolve the algorithm Range expansion step by step in the Yabasic programming language

Table of Contents

Problem Statement

A format for expressing an ordered list of integers is to use a comma separated list of either Example The list of integers: Is accurately expressed by the range expression: (And vice-versa).

Expand the range description: Note that the second element above, is the range from minus 3 to minus 1.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Range expansion step by step in the Yabasic programming language

Source code in the yabasic programming language

print RangeExpand$("-6,-3--1,3-5,7-11,14,15,17-20")

sub RangeExpand$(s$)
    local w$(1), n, i, r$, p, a, b
    
    n = token(s$, w$(), ",")
    
    for i = 1 to n
        p = instr(w$(i), "-", 2)
        if p then
            a = val(left$(w$(i), p-1))
            b = val(right$(w$(i), len(w$(i)) - p))
            repeat
                r$ = r$ + str$(a) + ","
                a = a + 1
            until(a > b)
        else
            r$ = r$ + w$(i) + ","
        end if
    next
    return left$(r$, len(r$) - 1)
end sub

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