Express as sum of power of natural numbers
Medium Accuracy: 42.77% Submissions: 4298 Points: 4

Given two numbers X and N, find out the total number of ways X can be expressed as sum of Nth power of unique natural numbers.

Examples:

Input  : X = 10, N = 2
Output : 1
Explanation: 10 = 12 + 32, 
Hence total 1 possibility

Input  : X = 100, N = 2
Output : 3
Explanation: 100 = 102
             OR 62 + 82
             OR 12 + 32 + 42 + 52 + 72
Hence total 3 possibilities

Input:
The first line of input contains an integer T denoting the number of test cases. Then T test cases follow. Each test case contains a single line containing two space seperated integers denoting the values of X and N respectively.

Output:
For each test case output a new line containing a single integer denoting the total number of ways X can be expressed as sum of Nth power of unique natural numbers.

Constraints:
1 <= T <= 100
1 <= X <= 103
1 <= N <= 5

Example:
Input:
2
10 2
100 2

Output:
1
3

 

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