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December 7, 2013 14:44
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Saruman's Army (POJ 3069)
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| ## Saruman's Army (POJ 3069) | |
| ## http://rubyfiddle.com/riddles/b5dfa | |
| R=10 | |
| x = [1, 7, 15, 20, 30, 50] | |
| N = x.size | |
| ans = [] | |
| i = j = 0 | |
| while x[1] != nil | |
| if j > x.size-1 | |
| ans << x.slice!(0..j-1) | |
| elsif x[j]-x[i] <= R && x[i]-x[0] <= R | |
| i = j | |
| j += 1 | |
| else | |
| ans << x.slice!(0..i) | |
| i = j = 0 | |
| end | |
| end | |
| if x[0] != nil | |
| ans << x.pop | |
| end | |
| puts ans.size |
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