Given a positive integer N, return the Nth row of pascal's triangle.
Pascal's triangle is a triangular array of the binomial coefficients formed by summing up the elements of previous row.
Example :
1
1 1
1 2 1
1 3 3 1
For N = 3, return 3rd row i.e 1 2 1
Example 1:
Input:
N = 4
Output: 1 3 3 1
Explanation: 4th row of pascal's triangle
is 1 3 3 1.
Example 2:
Input:
N = 5
Output: 1 4 6 4 1
Explanation: 5th row of pascal's triangle
is 1 4 6 4 1.
Your Task:
Complete the function nthRowOfPascalTriangle() which takes n, as input parameters and returns an array representing the answer. The elements can be large so return it modulo 109 + 7. You don't to print answer or take inputs.
Expected Time Complexity: O(N2) Expected Auxiliary Space: O(N2)
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Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
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