Is there a less-verbose way to list all the integers (one-digit, two-digit,
three-digit, four-digit) can be formed by using the characters 0, 1, 2, and
6 once? I used multiple takes:
*#b=.~.>10#.ea({1{."1 a),({2{."1 a),({3{."1 a),{a=.(perm 4){0 1 2 6*
*49*
*b*
*0 1 2 6 10 12 16 20 21 26 60 61 62 102 106 120 126 160 162 201 206 210 216
260 261 601 602 610 612 620 621 1026 1062 1206 1260 1602 1620 2016 2061
2106 2160 2601 2610 6012 6021 6102 6120 6201 6210*
Skip Cave
Cave Consulting LLC
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