Two sum: Difference between revisions

=={{header|Sidef}}==

{{trans|Perl 6}}

<lang ruby>func two_sum(numbers, sum) {

var (i, j) = (0, numbers.end)

while (i < j) {

given (sum <=> numbers[i]+numbers[j]) {

when (-1) { --j }

when (+1) { ++i }

default { return [i, j] }

}

}

return []

}

say two_sum([0, 2, 11, 19, 90], 21)

say two_sum([0, 2, 11, 19, 90], 25)</lang>

{{out}}

<pre>

[1, 3]

[]

</pre>