numaliquotsbelow =: <.@(%~ <:)
   1000 -&(60&numaliquotsbelow - (60*.24)&numaliquotsbelow) 60
8
   1000 -&(60&numaliquotsbelow - (60*.24)&numaliquotsbelow) 59
8
   1000 -&(60&numaliquotsbelow - (60*.24)&numaliquotsbelow) 61
7
   1000 -&(60&numaliquotsbelow - (60*.24)&numaliquotsbelow) 1
8

Henry Rich



On 12/19/2017 1:52 PM, 'Skip Cave' via Programming wrote:
How many numbers from 1 to 1000 are divisible by 60 but not by 24?

Here's my somewhat inelegant explicit solution:

     #e=.c#~d=.-.0=24|/c=.a#~b=.0=60|/a=.1+i.1000

8


NB. What are the numbers?

     e

60 180 300 420 540 660 780 900


How would I construct  a more compact tacit solution?


Skip

Skip Cave
Cave Consulting LLC
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