Created
June 24, 2011 04:55
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using || operator to determine sequencing
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| def find_sequence goal | |
| def find start, history, goal | |
| if start == goal | |
| history | |
| elsif start > goal | |
| nil | |
| else | |
| find(start + 5, '(' + history + ' + 5)', goal) || find(start * 3, '(' + history + ' * 3)', goal) | |
| end | |
| end | |
| find(1, "1", goal) | |
| end | |
| puts findSequence(24) # => (((1 * 3) + 5) * 3) |
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