A cheat (?) that builds instead of "removing"
z=.,".>{4#<'123456'
$z
1296
10{.z
1111 1112 1113 1114 1115 1116 1121 1122 1123 1124
On 10/3/2017 4:16 PM, Skip Cave wrote:
Another interesting Quora problem:
Given the integers from 1000 to 9999, remove all integers that contain a 7,
8, 9, or zero, and list the remaining integers.
Skip
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