A11376 | Position in Fraction
时间限制1s
内存限制256MB
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题目描述
You have a fraction . You need to find the first occurrence of digit $c$ into decimal notation of the fraction after decimal point.
输入格式
The first contains three single positive integers $a$ , $b$ , $c$ ( $1\le a<b\le 10^{5}$ , $0\le c\le 9$ ).
输出格式
Print position of the first occurrence of digit $c$ into the fraction. Positions are numbered from $1$ after decimal point. It there is no such position, print -1.
输入输出样例
输入 #1
1 2 0
输出 #1
2
输入 #2
2 3 7
输出 #2
-1
The fraction in the first example has the following decimal notation: . The first zero stands on second position.
The fraction in the second example has the following decimal notation: . There is no digit $7$ in decimal notation of the fraction.
The fraction in the second example has the following decimal notation: . There is no digit $7$ in decimal notation of the fraction.
C++ 编辑器
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评测结果：Accepted