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Problem 1416. -- [NOI2006]神奇的口袋 -- 衡阳八中OJ离线版-2014-11-04
1416: [NOI2006]神奇的口袋
Time Limit:
10 Sec
Memory Limit:
64 MB
Submit:
353
Solved:
232
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Description
Input
Output
0/1,概率为1 应输出1/1。
Sample Input
input 1
2 3 1
1 1
1 1
2 2
3 1
input 2
3 1 2
1 1 1
5 1
Sample Output
output 1
1/12
output 2
1/3
HINT
1≤t,n≤1000, 1≤ak ,d≤10, 1≤x1
Source
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