here's some thing to think about.
Here's an "all combinations"challenge.
]A=:|:((3^3),3)$, >{3$<'123'
111111111222222222333333333
111222333111222333111222333
123123123123123123123123123
$A
3 27
Find a way to separate all rows and columns with spaces so you can apply “. To
turn the characters to a 3 27 array of jntegers.
.
Linda
AOL Mobile Mail
-----Original Message-----
From: Cliff Reiter <[email protected]>
To: programming <[email protected]>
Sent: Tue, Oct 3, 2017 11:21 PM
Subject: Re: [Jprogramming] Quora Digits Problem
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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