补充样例输入输出
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补充样例输入输出
250699
mot1ve楼主2020/6/17 22:02

Sample Input

5 7

5 2 100

3 5 80

2 3 70

2 1 50

3 4 90

4 1 85

3 1 70

0

Sample Output

61.200000 percent

2020/6/17 22:02