Neill N Silva III neill
neill
/ ball_weight.rb
Created
February 3, 2015 21:22
If 7 balls, determine which is lightest in the least amount of weighs.
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| ball1, ball2, ball3, ball4, ball5, ball6, ball7 = 2.7, 2.5, 2.7, 2.7, 2.7, 2.7, 2.7 | |
| group1 = [ball1, ball2, ball3] | |
| group2 = [ball4, ball5, ball6] | |
| if group1.inject(:+) == group2.inject(:+) | |
| puts "Ball 7 is the lightest." | |
| elsif group1.inject(:+) < group2.inject(:+) | |
| case group1[0] <=> group1[1] | |
| when 0 | |
| puts "Ball 3 is the lightest." |