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06/12/2025 03:41:35
1601. Snail
Snail
Аналитическое решение уравнений, неравенств, систем уравненийОлимпиадные задачи на английском языке
| 04/07/2011 | Лето 2011 - дорешивание (07A) |
| 12/07/2011 | Лето 2011 - 7 (A) |
Ограничения: время – 200ms/500ms, память – 32MiB Ввод: input.txt или стандартный ввод Вывод: output.txt или стандартный вывод 
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There is a snail on the ground. It wants to climb to the top of a wooden pole with the height of `V`
meters, measuring from the ground level. In one day it can climb `A` meters upwards, however during
each night it sleeps, sliding `B` meters back down. Determine the number of days it needs to climb to the
top.
The first and only line of input contains three integers separated by a single space: `A`, `B`, and `V`
(`1\ ≤\ B\ <\ A\ ≤\ V\ ≤\ 1\ 000\ 000\ 000`), with meanings described above.
The first and only line of output must contain the number of days that the snail needs to reach the top.
Sample Input 1
2 1 5
Sample Output 1
4
Sample Input 2
5 1 6
Sample Output 2
2
Sample Input 3
100 99 1000000000
Sample Output 3
999999901
