e-olymp
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Problems

Launch

Launch

Launch starts with an initial velocityV (m/s) and moves in straight lines with constant accelerationA (m/s2). Which account meter path will be performed for the first time, less of a givenT (s) ?

Input

Set three real numbersA, V, Tthrough the gap.

Output

Output one integer - the desired value.

Time limit 1 second
Memory limit 64 MiB
Input example #1
1.00 0.00 1.00
Output example #1
2
Source II этап Всеукраинской олимпиады школьников 2008-2009, г. Бердичев