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- =begin
- AOJ34 Railway Lines(PCK2004)
- AC
- =end
- while gets
- xs = $_.split(",").map(&:to_i) # map{|v| v.to_i}
- v2, v1 = xs.pop, xs.pop
- l = xs.inject(:+) # inject{|pre, v| pre + v}
- t = l.to_f/(v2+v1)
- i = 0
- sum = 0
- loop do
- if v1*t <= sum then
- puts i
- break
- end
- sum += xs[i]
- i += 1
- end
- end
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