Submission #1695171

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Source Code Expand

a, b, c = gets.split.map(&:to_i)

func = ->t{a*t+b*Math.sin(c*t*Math::PI) - 100}

lb = 0.0
ub = 101.0 + b
loop {
  mid = (lb + ub) / 2
  v = func[mid]
  if v.abs<=10**-8
    puts "%.15f" % mid
    break
  elsif v<0
    lb = mid
  elsif v>0
    ub = mid
  else
    raise
  end
}

Submission Info

Judge Result