HDU 2117 Just a Numble

题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=2117

Just a Numble

Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 2381    Accepted Submission(s): 1145

Problem Description

Now give you two integers n m, you just tell me the m-th number after radix point in 1/n,for example n=4,the first numble after point is 2,the second is 5,and all 0 followed

 

Input

Each line of input will contain a pair of integers for n and m(1<=n<=10^7,1<=m<=10^5)

 

Output

For each line of input, your program should print a numble on a line,according to the above rules

 

Sample Input

  

   4 2
5 7
123 123
  

 

Sample Output

  

   5
0
8
  

大水题

#include<cstdio>
int main()
{
    int n,m;
    while(~scanf("%d%d",&n,&m))
    {
        int s=10/n,y=10%n;
        while(--m) s=y*10/n,y=y*10%n;
        printf("%d\n",s%10);//防止n=1,m=1时输出10
    }
    return 0;
}