Question

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Lazy Student
- Problem Description
There is a test of Algorithms. Teacher provides a question bank consisting of N questions and guarantees all the questions in the test will be from this question
bank. Due to lack of time and his laziness, Codu could only practice M questions. There are T questions in a question paper selected randomly. Passing criteria is
solving at least 1 of the T problems. Codu can't solve the question he didn't practice. What is the probability that Codu will pass the test?
Constraints
0<T<= 10000
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0<N, T <= 1000
DEBE
0 <=M<= 1000
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-
Input Format
First line contains single integer T denoting the number of test cases.
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First line of each test case contains 3 integers separated by space denoting N, T, and M.
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Output
mm
999
mm
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GELENETE
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For each test case, print a single integer.
If probability is p/q where p & q are co-prime, print (p*mulinv(9) modulo 1000000007, where muliny(x) is multiplicative inverse of x under modulo 1000000007.
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- Test Case
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3:31 AM
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T 1) 7/13/2019
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Answer 1

please tell what i should do i cant read it all