Arrangement Problem Statement
Determine the number of permutations of list A
= [1, 2, ..., N] such that for every index i
, either A[i]
is divisible by i
or i
is divisible by A[i]
.
Input:
The input starts with an integer T
representing the number of test cases.
For each test case, there is a single integer N
.
Output:
For each test case, output the number of permutations on a new line.
Example:
Input:
2
1
2
Output:
1
2
Explanation:
For N = 1
, the permutation [1] satisfies the condition.
For N = 2
, the permutations [1, 2] and [2, 1] satisfy the condition.
Constraints:
1 <= T <= 10
0 <= N <= 15
- Time Limit: 1 second
Note:
You do not need to print anything or handle input. Implement the provided function to determine the output.
AnswerBot
1y
The goal is to find the number of permutations of a list satisfying certain conditions.
Iterate through all permutations of the list
Check if each permutation satisfies the given conditions
Count the num...read more
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